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X-WR-CALNAME:Department of Theoretical Physics
X-ORIGINAL-URL:https://web-f1.ijs.si
X-WR-CALDESC:Events for Department of Theoretical Physics
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BEGIN:VTIMEZONE
TZID:Europe/Ljubljana
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20240331T010000
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BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20241027T010000
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BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20250330T010000
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TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20251026T010000
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END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20241120T110000
DTEND;TZID=Europe/Ljubljana:20241120T120000
DTSTAMP:20260404T010057
CREATED:20241013T095013Z
LAST-MODIFIED:20241108T065416Z
UID:40658-1732100400-1732104000@web-f1.ijs.si
SUMMARY:Miha Modic (TBA)
DESCRIPTION:https://indico.ijs.si/event/2462/
URL:https://web-f1.ijs.si/event/miha-modic-tba/
LOCATION:Seminar room of physics (106) (IJS)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20241121T153000
DTEND;TZID=Europe/Ljubljana:20241121T163000
DTSTAMP:20260404T010058
CREATED:20240910T132551Z
LAST-MODIFIED:20241121T152241Z
UID:37301-1732203000-1732206600@web-f1.ijs.si
SUMMARY:Abhishek Mohapatra:  One Born Oppenheimer Effective Theory to rule all Exotics
DESCRIPTION:The XYZ exotic states discovered in the hadronic sector with two heavy quarks constitute one of the most important open problems in particle theory. In this talk\, I show that an effective field theory derived from QCD\, the Born Oppenheimer effective field theory (BOEFT)\, can describe exotics of any composition. I show the results of general Schr”odinger coupled equations for arbitrary angular momentum of the light degrees of freedom. The coupled equations describe hybrids\, tetraquarks\, pentaquarks\, doubly heavy baryons\, and quarkonia in leading order\, including nonadiabatic terms. Additionally\, I also present the results of the predicted multiplets\, corresponding selection rules\, and expressions of the nonperturbative gauge invariant correlators\, which are the input of the BOEFT: static energies\, generalized Wilson loops\, gluelumps\, and adjoint mesons that should be calculated on the lattice. Moreover\, I show for the first time new results on the behavior of static energies at short distances and mixing with the threshold at long distances based on BOEFT. As an application of this BOEFT\, I show results for the hybrid spectrum\, hybrid decays to quarkonium and some preliminary results for X(3872) and T_cc (3875).\nhttps://indico.ijs.si/event/2268/
URL:https://web-f1.ijs.si/event/abhishek-mohapatra-tba/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (A/1-106 – Seminarska soba fizike (F5))
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20241127T133000
DTEND;TZID=Europe/Ljubljana:20241127T143000
DTSTAMP:20260404T010058
CREATED:20241126T125204Z
LAST-MODIFIED:20241127T130027Z
UID:44873-1732714200-1732717800@web-f1.ijs.si
SUMMARY:Darius A. Faroughy: Generative modelling for Particle-Clouds with Quantum Numbers
DESCRIPTION:https://indico.ijs.si/event/2561/
URL:https://web-f1.ijs.si/event/darius-a-faroughy-generative-modelling-for-particle-clouds-with-quantum-numbers/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (C/2-X – F1 čajnica)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20241128T140000
DTEND;TZID=Europe/Ljubljana:20241128T150000
DTSTAMP:20260404T010058
CREATED:20240917T072556Z
LAST-MODIFIED:20241128T134151Z
UID:37990-1732802400-1732806000@web-f1.ijs.si
SUMMARY:Ilja Doršner: Is Doublet-Triplet Splitting Necessary?
DESCRIPTION:I will demonstrate that it is not necessary to substantially break the mass degeneracy between the Standard Model Higgs boson doublet and the accompanying scalar leptoquark. More precisely\, I will show that the experimental proton decay lifetime data cannot place any meaningful bound on the mass of the scalar leptoquark\, a.k.a. the color triplet\, if one includes effects of higher-dimensional operators. I use particle content of the Georgi-Glashow model for this demonstration but the proposed mechanism can also work in other popular unification frameworks. Interestingly enough\, the complete suppression of proton decay via the scalar leptoquark mediation is not in any conflict with the partial suppression of the gauge mediated two-body proton decay signatures. Finally\, I will introduce a method that yields a proper upper limit on the cutoff scale of the aforementioned higher-dimensional operators.\nhttps://indico.ijs.si/event/2272/
URL:https://web-f1.ijs.si/event/damir-becirevic-tba/
LOCATION:C/2-X – F1 čajnica (Jamova)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20241128T140000
DTEND;TZID=Europe/Ljubljana:20241128T150000
DTSTAMP:20260404T010058
CREATED:20241020T170929Z
LAST-MODIFIED:20241128T134151Z
UID:41414-1732802400-1732806000@web-f1.ijs.si
SUMMARY:Tanmoy Sarkar\, "Active Junctional Fluctuation-Driven Ordering in 3D Cellular Aggregates"
DESCRIPTION:https://indico.ijs.si/event/2467/
URL:https://web-f1.ijs.si/event/tanmoy-sarkar-tba-3/
LOCATION:A/1-106 – Seminarska soba fizike (F5) (Jamova)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20241205T140000
DTEND;TZID=Europe/Ljubljana:20241205T150000
DTSTAMP:20260404T010058
CREATED:20241028T140343Z
LAST-MODIFIED:20241205T135821Z
UID:42206-1733407200-1733410800@web-f1.ijs.si
SUMMARY:Primož Ziherl\, "Intrinsic curvature of lipids"
DESCRIPTION:https://indico.ijs.si/event/2476/
URL:https://web-f1.ijs.si/event/primoz-ziherl-intrinsic-curvature-of-lipids/
LOCATION:A/1-106 – Seminarska soba fizike (F5) (Jamova)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20241212T140000
DTEND;TZID=Europe/Ljubljana:20241212T150000
DTSTAMP:20260404T010058
CREATED:20241127T130026Z
LAST-MODIFIED:20241212T135224Z
UID:44977-1734012000-1734015600@web-f1.ijs.si
SUMMARY:XBW rehearsal
DESCRIPTION:Speakers:Fran Ivan VrbanVeronika BukinaMarin Šako\nhttps://indico.ijs.si/event/2562/
URL:https://web-f1.ijs.si/event/xbw-rehearsal/
LOCATION:A/1-106 – Seminarska soba fizike (F5) (Jamova)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250116T140000
DTEND;TZID=Europe/Ljubljana:20250116T150000
DTSTAMP:20260404T010058
CREATED:20241224T213613Z
LAST-MODIFIED:20250116T140517Z
UID:47499-1737036000-1737039600@web-f1.ijs.si
SUMMARY:Matej Kanduč\, "On foam stability"
DESCRIPTION:Soft\, light\, and visually captivating\, liquid foams are enigmatic – complex systems with intricate multiscale structures. Beneficial in some cases and undesired in others\, their inherent instability raises a critical question: how can we stabilize foams? In this seminar\, I will discuss our current understanding of foam decay and strategies to enhance foam stability.\nhttps://indico.ijs.si/event/2638/
URL:https://web-f1.ijs.si/event/matej-kanduc-tba-2/
LOCATION:A/1-106 – Seminarska soba fizike (F5) (Jamova)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250130T140000
DTEND;TZID=Europe/Ljubljana:20250130T150000
DTSTAMP:20260404T010058
CREATED:20250128T103559Z
LAST-MODIFIED:20250129T054008Z
UID:50772-1738245600-1738249200@web-f1.ijs.si
SUMMARY:Primož Ziherl\, "Soft cells and the geometry  of sea shells"
DESCRIPTION:https://indico.ijs.si/event/2689/
URL:https://web-f1.ijs.si/event/primoz-ziherl-soft-cells-and-the-geometry-of-sea-shells/
LOCATION:A/1-106 – Seminarska soba fizike (F5) (Jamova)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250213T153000
DTEND;TZID=Europe/Ljubljana:20250213T163000
DTSTAMP:20260404T010058
CREATED:20241226T103138Z
LAST-MODIFIED:20250213T152215Z
UID:47664-1739460600-1739464200@web-f1.ijs.si
SUMMARY:Alessandro Dondarini: Constraining the Minimal Dark Matter 5-plet with Indirect Detection
DESCRIPTION:We critically reassess the Minimal Dark Matter model and propose new indirect detection signatures. Specifically\, for the originally proposed accidentally stable SU(2) 5-plet\, we compute the photon flux arising from Dark Matter Bound State Formation and Sommerfeld Enhancement\, highlighting the appearance of several spectral lines. After analyzing the key features of this flux\, we explore the constraints on the 5-plet imposed by FERMI-LAT observations of the galactic diffuse emission\, as well as the projected sensitivity of the upcoming Cherenkov Telescope Array (CTA) in searches targeting Dwarf Spheroidal Galaxies.\nhttps://indico.ijs.si/event/2639/
URL:https://web-f1.ijs.si/event/alessandro-dondarini/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (A/1-106 – Seminarska soba fizike (F5))
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250220T141500
DTEND;TZID=Europe/Ljubljana:20250220T151500
DTSTAMP:20260404T010058
CREATED:20250220T104157Z
LAST-MODIFIED:20250220T135306Z
UID:52503-1740060900-1740064500@web-f1.ijs.si
SUMMARY:Matej Krajnc\, "Hybrid mechanical model of epithelia supported by substrate"
DESCRIPTION:https://indico.ijs.si/event/2778/
URL:https://web-f1.ijs.si/event/matej-krajnc-hybrid-mechanical-model-of-epithelia-supported-by-substrate/
LOCATION:A/1-106 – Seminarska soba fizike (F5) (Jamova)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250220T153000
DTEND;TZID=Europe/Ljubljana:20250220T163000
DTSTAMP:20260404T010058
CREATED:20241121T100738Z
LAST-MODIFIED:20250220T135305Z
UID:44364-1740065400-1740069000@web-f1.ijs.si
SUMMARY:Nicklas Ramberg: Unveiling Hidden Sectors with Gravitational Waves ("The Gravitational Wave Stairway")
DESCRIPTION:In this talk we explore the potential of gravitational wave (GW) observations to probe the structure of hidden sectors beyond the Standard Model (BSM).  We argue that the sequential decoupling of new degrees of freedom in these sectors can leave a distinctive imprint on the GW spectrum\, resembling a “stairway” pattern. We investigate how this signature can distinguish between different hidden sectors\, focusing on two benchmark scenarios: a dark QCD-like theory and a model with a Kaluza-Klein (KK) tower of states. We analyze the sensitivity of current and future GW detectors\, such as LISA and Einstein Telescope\, to these multi-step spectral features\, demonstrating the potential to uncover rich information about the particle content and dynamics of hidden sectors.\nhttps://indico.ijs.si/event/2500/
URL:https://web-f1.ijs.si/event/nicklas-ramberg/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (A/1-106 – Seminarska soba fizike (F5))
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250227T153000
DTEND;TZID=Europe/Ljubljana:20250227T163000
DTSTAMP:20260404T010058
CREATED:20241223T090640Z
LAST-MODIFIED:20250227T143245Z
UID:47348-1740670200-1740673800@web-f1.ijs.si
SUMMARY:Michael Zantedeschi: On the fate of evaporating black holes: how the burden of their memory stabilizes them
DESCRIPTION:The “memory burden” effect describes how an object’s stored information resists its own decay. This effect is especially pronounced in “saturons”—systems with maximal entropy consistent with unitarity—of which black holes are prime examples. I will show how this memory burden can halt Hawking evaporation\, stabilizing black holes against complete decay. Importantly\, this mechanism is not limited to gravitational systems: it also appears in renormalizable field theories. To illustrate its broader relevance\, I will present a soliton model that shares key features with black holes and is similarly stabilized by its memory content. Finally\, I will discuss unique phenomenological implications and potential observational signatures\, particularly for dark matter scenarios.\nhttps://indico.ijs.si/event/2637/
URL:https://web-f1.ijs.si/event/michael-zantedeschi/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (A/1-106 – Seminarska soba fizike (F5))
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250306T141500
DTEND;TZID=Europe/Ljubljana:20250306T151500
DTSTAMP:20260404T010058
CREATED:20250131T080832Z
LAST-MODIFIED:20250306T135036Z
UID:51011-1741270500-1741274100@web-f1.ijs.si
SUMMARY:Jonathan Ron\, "Deterministic cell motility patterns across scales and sizes"
DESCRIPTION:Cell motility plays a crucial role in various biological processes\, such as embryogenesis\, wound healing\, and immune response. Although the complex molecular machinery driving cell motility is relatively well understood\, it remains unclear how cells exhibit such diverse migration patterns\, both individually and collectively. This seminar will focus on a recently developed theoretical framework for cellular migration\, which couples migration features such as polarization\, speed\, and size to traction forces and adhesion dynamics. The discussion will begin with the model’s predictions for one-dimensional migration of single cells\, emphasizing how symmetry is broken during directional decision-making. The model will then be extended to describe cell-cell interactions and the collective behavior of one-dimensional multicellular trains. A two-dimensional stochastic version of the model will also be introduced\, explaining the run-and-tumble behavior commonly exhibited by cells. Finally\, a new theory will be introduced\, linking cell migration to volume regulation via active ion transport. The results presented in the seminar will be supported by extensive experimental validation conducted on various cell types.\n Ron\, J.E.\, Monzo\, P.\, Gauthier\, N.C.\, Voituriez\, R. and Gov\, N.S.\, 2020. One-dimensional cell motility patterns. Physical review research\, 2(3)\, p.033237.\n Mukherjee\, A.\, Ron\, J.E.\, Hu\, H.T.\, Nishimura\, T.\, Hanawa‐Suetsugu\, K.\, Behkam\, B.\, Mimori‐Kiyosue\, Y.\, Gov\, N.S.\, Suetsugu\, S. and Nain\, A.S.\, 2023. Actin Filaments Couple the Protrusive Tips to the Nucleus through the I‐BAR Domain Protein IRSp53 during the Migration of Cells on 1D Fibers. Advanced science\, 10(7)\, p.2207368.\n Ron\, J. E.\, d’Alessandro\, J.\, Cellerin\, V.\, Voituriez\, R.\, Ladoux\, B.\, & Gov\, N. S. (2023). Polarization and motility of one-dimensional multi-cellular trains. Biophysical Journal\, 122(23)\, 4598-4613.\n Ron\, J. E.\, Crestani\, M.\, Kux\, J. M.\, Liu\, J.\, Al-Dam\, N.\, Monzo\, P.\, … & Gov\, N. S. (2024). Emergent seesaw oscillations during cellular directional decision-making. Nature Physics\, 20(3)\, 501-511.\nhttps://indico.ijs.si/event/2691/
URL:https://web-f1.ijs.si/event/jonathan-ron-tba/
LOCATION:Seminar room of physics (106) (IJS)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250306T153000
DTEND;TZID=Europe/Ljubljana:20250306T163000
DTSTAMP:20260404T010058
CREATED:20250114T150112Z
LAST-MODIFIED:20250306T150707Z
UID:49569-1741275000-1741278600@web-f1.ijs.si
SUMMARY:Enrico Morgante: Gravitational waves from confinement in improved holographic QCD
DESCRIPTION:I will discuss gravitational waves produced during the confinement phase transition in SU(N) Yang-Mills\, using a holographic description. The key ingredient will be the construction of the effective action\, with the kinetic term playing an important role.\nhttps://indico.ijs.si/event/2680/
URL:https://web-f1.ijs.si/event/enrico-morgante/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (A/1-106 – Seminarska soba fizike (F5))
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250313T140000
DTEND;TZID=Europe/Ljubljana:20250313T150000
DTSTAMP:20260404T010058
CREATED:20250220T104157Z
LAST-MODIFIED:20250313T135206Z
UID:52505-1741874400-1741878000@web-f1.ijs.si
SUMMARY:V. S. Rao Jampani\, "Self-shaping liquids"
DESCRIPTION:https://indico.ijs.si/event/2745/
URL:https://web-f1.ijs.si/event/v-s-rao-jampani-tba/
LOCATION:A/1-106 – Seminarska soba fizike (F5) (Jamova)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250320T141500
DTEND;TZID=Europe/Ljubljana:20250320T153000
DTSTAMP:20260404T010058
CREATED:20250220T104157Z
LAST-MODIFIED:20250320T142619Z
UID:52506-1742480100-1742484600@web-f1.ijs.si
SUMMARY:Petr Šulc\, "DNA and RNA nanotechnology: molecular computing\, therapeutics\, and the quest for the holy grail of self-assembly"
DESCRIPTION:The control over the self-assembly of complex structures is a long-standing challenge of biomimetic nanotechnology\, as the desired assembly pathway is often kinetically derailed by the formation of competing alternative structures or amorphous aggregates. The goal of inverse design problem is hence to find a set of blocks that reliably assemble in high yield into a target structure while avoiding kinetic traps and alternative competing states. We present here a framework called SAT-assembly\, which solves this problem by combination of multiscale molecular simulation\, graph theory\, and constrained optimization methods. While the general approach is abstract\, the proposed designs can be realized experimentally e.g. with building blocks made out of DNA or RNA strands. We then show how our models are used to guide experimental realization of highly coveted nanostructure shapes with applications ranging from therapeutic delivery to nanoscale templating\, including designs such as capsids\, diamond lattices\, 3D polycube assemblies\, and dynamic reconfigurable multifarious structures\, which can switch between multiple possible stable folds.\nhttps://indico.ijs.si/event/2744/
URL:https://web-f1.ijs.si/event/fran-ivan-vrban-tba-2/
LOCATION:A/1-106 – Seminarska soba fizike (F5) (Jamova)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250325T140000
DTEND;TZID=Europe/Ljubljana:20250325T150000
DTSTAMP:20260404T010058
CREATED:20250226T092352Z
LAST-MODIFIED:20250325T133641Z
UID:53064-1742911200-1742914800@web-f1.ijs.si
SUMMARY:Marko Popovic\, "Biological tissues as active amorphous solids"
DESCRIPTION:https://indico.ijs.si/event/2784/
URL:https://web-f1.ijs.si/event/marko-popovic-biological-tissues-as-active-amorphous-solids/
LOCATION:C/2-X – F1 čajnica (Jamova)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250327T140000
DTEND;TZID=Europe/Ljubljana:20250327T150000
DTSTAMP:20260404T010058
CREATED:20250226T092352Z
LAST-MODIFIED:20250327T132123Z
UID:53065-1743084000-1743087600@web-f1.ijs.si
SUMMARY:Sifan Yin\, "Developmental mechanics of divergent buckling patterns in chick gut"
DESCRIPTION:https://indico.ijs.si/event/2785/
URL:https://web-f1.ijs.si/event/sifan-yin-developmental-mechanics-of-divergent-buckling-patterns-in-chick-gut/
LOCATION:A/1-106 – Seminarska soba fizike (F5) (Jamova)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250408T140000
DTEND;TZID=Europe/Ljubljana:20250408T150000
DTSTAMP:20260404T010058
CREATED:20250401T131823Z
LAST-MODIFIED:20250408T123630Z
UID:56285-1744120800-1744124400@web-f1.ijs.si
SUMMARY:Borut Bajc: E6
DESCRIPTION:I will motivate the use of E6 grand unified theory and describe a \nrealistic E6 GUT which gives rise to novel possible intermediate stages. \nhttps://indico.ijs.si/event/2874/
URL:https://web-f1.ijs.si/event/borut-bajc/
LOCATION:C/2-X – F1 čajnica (Jamova)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250409T121500
DTEND;TZID=Europe/Ljubljana:20250409T131500
DTSTAMP:20260404T010058
CREATED:20250326T093731Z
LAST-MODIFIED:20250409T102023Z
UID:55687-1744200900-1744204500@web-f1.ijs.si
SUMMARY:Stephane Jedele\, "Study of the KCNN4 channel involved in the pathological dehydration of red blood cells using molecular modeling approaches"
DESCRIPTION:KCNN4 is a calcium (Ca)-activated potassium (K+) channel translocating K+ ions across several cellular membranes and for which Ca2+ sensitivity is conferred by calmodulin (CaM). Until the main part of the protein structure bound to CaM has been resolved\, in silico studies had used homology models derived from the well characterized transmembrane domain of other K+ channels\, limiting the functional investigation to this particular region. Thus\, how the regulatory domains of KCNN4 communicate with each other and where the possible gates are located across the complete structure are still not well understood. My PhD work presents for the first time results obtained from an extensive investigation of full-length models of the channel in different conformational states and molecular contexts using all-atom molecular dynamics simulations and enhanced sampling methods. The results allow us to contextualize no less than 6 of the pathogenic mutations identified in the channel to date\, and provide a new basis for understanding the KCNN4 function.\nhttps://indico.ijs.si/event/2866/
URL:https://web-f1.ijs.si/event/stephane-jedele-study-of-the-kcnn4-channel-involved-in-the-pathological-dehydration-of-red-blood-cells-using-molecular-modeling-approaches/
LOCATION:C/2-X – F1 čajnica (Jamova)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250410T123000
DTEND;TZID=Europe/Ljubljana:20250410T133000
DTSTAMP:20260404T010058
CREATED:20250220T104157Z
LAST-MODIFIED:20250410T110900Z
UID:52507-1744288200-1744291800@web-f1.ijs.si
SUMMARY:Sascha Ollertz\, "Agent-based modelling of cell differentiation patterns in mouse blastocysts"
DESCRIPTION:Early embryonic development from zygote to blastocyst is a highly dynamic\, self-organised process in which stem cells undergo successive cell fate decisions and form a complex structure. Local patterns in the early and mid blastocyst stage resolve into global patterns in the late stage of the blastocyst . A first modelling approach\, based on cell division and signalling showed that the spatial cell fate patterns arising in the earlyand mid stage\, are compatible with signalling beyond the nearest neighbours . As a next step\, we expanded our existing mathematical\, agent-based model to incorporate the late stage by including cell sorting based on differential adhesion. The resulting model consists of cell division\, cell death\, physical interactions\, transcription and signalling between the cells. The model allows us to systematically investigate the influence of these mechanisms and their relative timing with respect to the formation of the global pattern in the late blastocyst stage.\n Fischer\, S. C.\, Corujo-Simon\, E.\, Lilao-Garzon\, J.\, Stelzer\, E. H. K.\, & Muñoz-Descalzo\, S. (2020). The transition from local to global patterns governs the differentiation of mouse blastocysts. PloS one\, 15(5)\, e0233030.\n Fischer\, S. C.\, Schardt\, S.\, Lilao-Garzón\, J.\, & Muñoz-Descalzo\, S. (2023). The salt-and-pepper pattern in mouse blastocysts is compatible with signaling beyond the nearest neighbors. In iScience (Vol. 26\, Issue 11\, p. 108106).\n Schardt\, S.\, & Fischer\, S. C. (2023). Adjusting the range of cell-cell communication enables fine-tuning of cell fate patterns from checkerboard to engulfing. Journal of mathematical biology\, 87(4)\, 54.\nhttps://indico.ijs.si/event/2746/
URL:https://web-f1.ijs.si/event/sascha-ollertz-tba/
LOCATION:C/2-X – F1 čajnica (Jamova)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250417T140000
DTEND;TZID=Europe/Ljubljana:20250417T150000
DTSTAMP:20260404T010058
CREATED:20250224T205015Z
LAST-MODIFIED:20250417T125137Z
UID:52935-1744898400-1744902000@web-f1.ijs.si
SUMMARY:Fran Ivan Vrban\, "Variational model shapes of deformable particles"
DESCRIPTION:https://indico.ijs.si/event/2782/
URL:https://web-f1.ijs.si/event/fran-ivan-vrban-tba-3/
LOCATION:A/1-106 – Seminarska soba fizike (F5) (Jamova)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250417T153000
DTEND;TZID=Europe/Ljubljana:20250417T163000
DTSTAMP:20260404T010058
CREATED:20250408T142851Z
LAST-MODIFIED:20250417T140610Z
UID:56983-1744903800-1744907400@web-f1.ijs.si
SUMMARY:Jonathan Kriewald: Lepton Number Violation at the LHC
DESCRIPTION:Numerous well-motivated extensions of the Standard Model\, notably models linked to the generation of neutrino masses and to searches for neutrinoless double-beta decay\, predict the existence of lepton-number-violating (LNV) processes. In particular\, the type II seesaw and the left-right symmetric model predict final states consisting of same-sign di-leptons with jets and/or the existence of long-lived heavy neutral leptons which could be detected at the LHC.\nIn this talk I will review current collider limits on such scenarios and estimate the corresponding future HL-LHC sensitivities for these models. I will show that these models predict observable signals across broad regions of parameter space\, whereas the LHC can indirectly probe New Physics scales as high as 70-80 TeV.\nhttps://indico.ijs.si/event/2903/
URL:https://web-f1.ijs.si/event/jonathan-kriewald/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (A/1-106 – Seminarska soba fizike (F5))
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250424T140000
DTEND;TZID=Europe/Ljubljana:20250424T150000
DTSTAMP:20260404T010058
CREATED:20250314T082037Z
LAST-MODIFIED:20250424T114250Z
UID:54616-1745503200-1745506800@web-f1.ijs.si
SUMMARY:Matej Kanduč\, "Microplastics through the lens of physics"
DESCRIPTION:Micro- and nanoplastics have emerged as persistent and pervasive pollutants\, raising concerns across environmental and biological systems. In this talk\, I will show how we can use ideas from soft matter physics\, especially colloid and interface science\, to better understand how these particles behave. We will look at how nano- and microplastics act like colloids and how their movement and interactions depend on their surface properties and the conditions around them.\nhttps://indico.ijs.si/event/2858/
URL:https://web-f1.ijs.si/event/fabio-staniscia-adsorption-at-a-contact-line/
LOCATION:A/1-106 – Seminarska soba fizike (F5) (Jamova)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250429T140000
DTEND;TZID=Europe/Ljubljana:20250429T150000
DTSTAMP:20260404T010058
CREATED:20250129T002108Z
LAST-MODIFIED:20250429T123823Z
UID:50833-1745935200-1745938800@web-f1.ijs.si
SUMMARY:Yue Zhang: Neutrino Self-interaction: Motivations and Future Probes
DESCRIPTION:Neutrino self-interaction with a larger “Fermi constant” is often resorted for understanding puzzles of our universe. I will first discuss how novel neutrino self-interactions can save the sterile neutrino dark matter produced through early universe oscillation mechanism\, which is otherwise ruled out by cosmological observations. The explanation requires the existence of a light scalar boson that couples exclusively to neutrinos and sets a well-motivated target for experimental probes. In the second part of talk\, I will review existing constraints on the neutrinophilic scalar\, and point out pathways for testing the model in upcoming experiments.\nhttps://indico.ijs.si/event/2582/
URL:https://web-f1.ijs.si/event/yue-zhang-tba/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (C/2-X – F1 čajnica)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250508T141500
DTEND;TZID=Europe/Ljubljana:20250508T151500
DTSTAMP:20260404T010058
CREATED:20250405T000101Z
LAST-MODIFIED:20250508T124927Z
UID:56616-1746713700-1746717300@web-f1.ijs.si
SUMMARY:Angelo Rosa\, "Configurational entropy of random trees"
DESCRIPTION:In this talk\, I will illustrate two recent results of our group concerning the statistical physics of branched polymers. In the first part\, I will present a graph theoretical approach to the configurational statistics of random tree-like objects\, which is based on Prüfer labelling. The method\, in particular\, provides: (i) direct access to the exact configurational entropy as a function of the tree composition\, (ii) computable exact expressions for partition functions and important experimental observables for tree ensembles with controlled branching activity and (iii) an efficient sampling scheme for corresponding tree configurations and arbitrary static properties. Then\, in the second part\, I will introduce a field-theoretic framework for branched polymers with excluded volume interactions. By solving the corresponding partition function by mean-field methods\, I will show that the theory is in semi-quantitative agreement with Monte-Carlo computer simulations.\nhttps://indico.ijs.si/event/2878/
URL:https://web-f1.ijs.si/event/angelo-rosa-tba/
LOCATION:Seminar room of physics (106) (IJS)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250520T153000
DTEND;TZID=Europe/Ljubljana:20250520T163000
DTSTAMP:20260404T010058
CREATED:20250506T123546Z
LAST-MODIFIED:20250520T141232Z
UID:59737-1747755000-1747758600@web-f1.ijs.si
SUMMARY:Marko Malezic: Toward Efficient Trotter-Suzuki Schemes for Long-Time Quantum Dynamics
DESCRIPTION:Accurately simulating long-time dynamics of quantum many-body systems—whether in real or imaginary time—is a challenge in both classical and quantum computing due to the accumulation of Trotter errors. While low-order Trotter-Suzuki decompositions are straightforward to implement\, their rapidly growing error limits access to long-time observables and ground state properties. I will present a framework for constructing efficient high-order Trotter-Suzuki schemes by identifying their structure and directly optimizing their parameters over a high-dimensional space. This method enables the discovery of new schemes with significantly improved efficiency compared to traditional constructions\, such as those by Suzuki and Yoshida. I will demonstrate the effectiveness of these decompositions on the Heisenberg XXZ model\, comparing their performance and presenting the newly discovered schemes. Finally\, I will discuss ongoing efforts to extend this framework to even higher orders and apply the derived schemes to quantum hardware\, pushing the boundaries of both theoretical advancements and practical quantum computing.\nhttps://indico.ijs.si/event/2921/
URL:https://web-f1.ijs.si/event/marko-malezic/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (F1 tea room)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250529T140000
DTEND;TZID=Europe/Ljubljana:20250529T150000
DTSTAMP:20260404T010058
CREATED:20250424T114250Z
LAST-MODIFIED:20250529T121457Z
UID:58577-1748527200-1748530800@web-f1.ijs.si
SUMMARY:Anže Božič\, "Complexity of RNA sequences"
DESCRIPTION:https://indico.ijs.si/event/2913/
URL:https://web-f1.ijs.si/event/anze-bozic-complexity-of-rna-sequences/
LOCATION:A/1-106 – Seminarska soba fizike (F5) (Jamova)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250529T153000
DTEND;TZID=Europe/Ljubljana:20250529T163000
DTSTAMP:20260404T010058
CREATED:20250406T185155Z
LAST-MODIFIED:20250529T140433Z
UID:56798-1748532600-1748536200@web-f1.ijs.si
SUMMARY:Motoo Suzuki: Small Instantons and the Post-Inflationary QCD Axion in a Special Product GUT
DESCRIPTION:In this talk\, after some review of axion physics\, I would like to discuss our recent work about a new framework of grand unification that is equipped with an axion solution to the strong CP problem without a domain wall problem when the Peccei–Quinn (PQ) symmetry is spontaneously broken after inflation. Our grand unified theory (GUT) is based on a symmetry breaking pattern\, SU(10) ×SU(5)1 →SU(5)V ⊃SU(3)C ×SU(2)L ×U(1)Y\, where SU(5)1 and a special embedding of SU(5)2 ⊂SU(10) are broken to a diagonal subgroup SU(5)V. The model contains a vector-like pair of PQ-charged fermions that transform as (anti-)fundamental representations under SU(10)\, so that the domain wall number is one. However\, after the GUT symmetry breaking\, the number of vector-like pairs of PQ-charged colored fermions is larger than one\, which seems to encounter the domain wall problem. This apparent inconsistency is resolved by small instanton effects on the axion potential which operate as a PQ-violating bias term and allow the decay of domain walls. We propose a domain-wall-free UV completion for an IR model where the domain wall number appears larger than one. The model gives a prediction for a dark matter axion window\, which is different from that of the ordinary post-inflationary QCD axion with domain wall number one.\nhttps://indico.ijs.si/event/2901/
URL:https://web-f1.ijs.si/event/motoo-suzuki/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (A/1-106 – Seminarska soba fizike (F5))
END:VEVENT
END:VCALENDAR