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PRODID:-//Department of Theoretical Physics - ECPv6.5.1.5//NONSGML v1.0//EN
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METHOD:PUBLISH
X-ORIGINAL-URL:https://web-f1.ijs.si
X-WR-CALDESC:Events for Department of Theoretical Physics
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X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:Europe/Ljubljana
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20250330T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20251026T010000
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END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250417T140000
DTEND;TZID=Europe/Ljubljana:20250417T150000
DTSTAMP:20260403T215128
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:20260403T215128
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:20260403T215128
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:20260403T215128
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:20260403T215128
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:20260403T215128
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:20260403T215128
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:20260403T215128
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
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250605T153000
DTEND;TZID=Europe/Ljubljana:20250605T163000
DTSTAMP:20260403T215128
CREATED:20250526T145945Z
LAST-MODIFIED:20250605T141030Z
UID:61640-1749137400-1749141000@web-f1.ijs.si
SUMMARY:Yutaro Shoji: Regularization of Functional Determinants of Radial Operators via Heat Kernel Coefficients
DESCRIPTION:The leading order quantum corrections in quantum field theory appear in the form of functional determinants\, and their evaluation is very important in theoretical and phenomenological studies. We propose an efficient regularization method using the heat kernel coefficients. It enables us to regularize functional determinants in higher dimensions. In particular\, our explicit formulas can regularize functional determinants in up to 13 dimensions\, which has been a very difficult task before our study. The formulas can also be used to approximate higher angular momentum contributions in lower dimensions\, which makes the numerical computation very efficient. The large angular momentum expansion of our formula gives the WKB formulas in the previous studies\, but extended to higher orders. The results are obtained in both the zeta function regularization and the dimensional regularization.\nhttps://indico.ijs.si/event/2974/
URL:https://web-f1.ijs.si/event/yutaro-shoji/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (A/1-106 – Seminarska soba fizike (F5))
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250612T141500
DTEND;TZID=Europe/Ljubljana:20250612T151500
DTSTAMP:20260403T215128
CREATED:20250527T182445Z
LAST-MODIFIED:20250612T125623Z
UID:61722-1749737700-1749741300@web-f1.ijs.si
SUMMARY:Masayuki Imai\, "From Vesicles to Synthetic Minimal Cells"
DESCRIPTION:Life is a self-sustaining system that continuously proliferates by synthesizing membrane molecules from external raw materials\, thereby enabling vesicle growth and division. Such living systems exist in a state markedly distinct from conventional physical systems\, and elucidating the fundamental differences between living and non-living matter is a critical step toward understanding the essence of living systems. However\, contemporary living systems are highly complex\, making it extremely challenging to directly analyze the distinctions between life and matter using current organisms. To overcome this\, we have constructed a model system—a minimal cell—that captures the essential features of life. Our synthetic minimal cell is a vesicle-based system that integrates the following three functional modules: 1. Artificial metabolic system\, 2. Information processing system\, and 3. Self-reproduction system. Furthermore\, by varying the types of membrane molecules and genetic polymers\, we have constructed eight distinct minimal cell types. By comparing their growth rates (fitness)\, we are developing a system in which the dynamics of evolution due to competition among minimal cells can emerge. In this seminar\, we will introduce our synthetic minimal cell research and examine the conditions required for sustained proliferation and evolution from the perspective of non-equilibrium dynamics and information thermodynamics. This approach aims to shed light on the physical origin of the fundamental distinction between life and non-life.\nhttps://indico.ijs.si/event/2975/
URL:https://web-f1.ijs.si/event/masayuki-imai-from-vesicles-to-synthetic-minimal-cells/
LOCATION:A/1-106 – Seminarska soba fizike (F5) (Jamova)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250612T153000
DTEND;TZID=Europe/Ljubljana:20250612T163000
DTSTAMP:20260403T215128
CREATED:20250516T135641Z
LAST-MODIFIED:20250612T140845Z
UID:60765-1749742200-1749745800@web-f1.ijs.si
SUMMARY:Nandini Das: Peeping into dark matter scenarios - From freeze in to freeze out
DESCRIPTION:The existence of dark matter in the universe is an unavoidable fact while the nature of it  still remains  an unresolved mystery. We here try to explore the possibilities of having particle dark matter through different level of detection prospect. With an example from each  models\, we would  try to sketch a brief overview towards freeze in and freeze out.\nhttps://indico.ijs.si/event/2967/
URL:https://web-f1.ijs.si/event/nandini-das-peeping-into-dark-matter-scenarios-from-freeze-in-to-freeze-out/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (A/1-106 – Seminarska soba fizike (F5))
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250613T110000
DTEND;TZID=Europe/Ljubljana:20250613T120000
DTSTAMP:20260403T215128
CREATED:20250611T100904Z
LAST-MODIFIED:20250613T090525Z
UID:63227-1749812400-1749816000@web-f1.ijs.si
SUMMARY:Arnau Bas i Beneito: New methods to probe Standard Model Extensions via Proton Decay and Neutrino Masses
DESCRIPTION:Baryon and lepton number are excellent low-energy symmetries of the Standard Model (SM) that tightly constrain the form of its extensions. In this paper we investigate the possibility that these accidental symmetries are violated in the deep UV\, in such a way that one multiplet necessary for their violation lives at an intermediate energy scale M above the electroweak scale. We write down the simplest effective operators containing each multiplet that may couple linearly to the SM at the renormalisable level and estimate the dominant contribution of the underlying UV model to the pertinent operators in the SMEFT: the dimension-5 Weinberg operator and the baryon-number-violating operators up to dimension 7. Our results are upper bounds on the scale M for each multiplet–operator pair\, derived from neutrino-oscillation data as well as prospective nucleon-decay searches. We also analyse the possibility that both processes are simultaneously explained within a natural UV model. In addition\, we advocate that our framework provides a convenient and digestible way of organising the space of UV models that violate these symmetries.\nhttps://indico.ijs.si/event/3005/
URL:https://web-f1.ijs.si/event/arnau-bas-i-beneito-new-methods-to-probe-standard-model-extensions-via-proton-decay-and-neutrino-masses/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (C/2-X – F1 čajnica)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250619T153000
DTEND;TZID=Europe/Ljubljana:20250619T163000
DTSTAMP:20260403T215128
CREATED:20250321T021318Z
LAST-MODIFIED:20250616T163918Z
UID:55245-1750347000-1750350600@web-f1.ijs.si
SUMMARY:Misha Gorshteyn: Cabibbo unitarity: anomaly (dis)appears
DESCRIPTION:Unitarity of the Cabibbo-Kobayashi-Maskawa (CKM) quark mixing matrix is one of the cornerstones of the Standard Model. \nThe unitarity constraint that involves the top-row matrix elements\, $|V_{ud}|^2+|V_{us}|^2+|V_{ub}|^2=1$ is particularly \nimportant because all elements are measured very precisely permitting a test at the 0.01% level. At this accuracy\, \n$V_{ub}sim10^{-3}$ is irrelevant\, and the unitarity constraint reduces to the two-flavor Cabibbo unitarity pattern with a single \nCabibbo angle $theta_C$ and $V_{ud}=costheta_C$ and $V_{us}$. At present\, a mild deficit is observed\, \n$|V_{ud}|^2+|V_{us}|^2=0.9985(7)$. As such\, this deficit may suggest some new physics\, but to make this claim all Standard \nModel ingredients must be firmly under control. I review these ingredients across theory and experiment and review the most \nrecent developments.\nhttps://indico.ijs.si/event/2861/
URL:https://web-f1.ijs.si/event/misha-gorshteyn/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (A/1-106 – Seminarska soba fizike (F5))
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250626T140000
DTEND;TZID=Europe/Ljubljana:20250626T150000
DTSTAMP:20260403T215128
CREATED:20250529T085136Z
LAST-MODIFIED:20250625T025821Z
UID:61889-1750946400-1750950000@web-f1.ijs.si
SUMMARY:Tea Tušar (TBA)
DESCRIPTION:https://indico.ijs.si/event/2978/
URL:https://web-f1.ijs.si/event/fabio-staniscia-tba-3/
LOCATION:A/1-106 – Seminarska soba fizike (F5) (Jamova)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250703T110000
DTEND;TZID=Europe/Ljubljana:20250703T120000
DTSTAMP:20260403T215128
CREATED:20250701T123642Z
LAST-MODIFIED:20250703T093356Z
UID:65051-1751540400-1751544000@web-f1.ijs.si
SUMMARY:Martin Schmaltz: Hubble tension update
DESCRIPTION:This seminar will give an introduction to and status update of the Hubble tension\, the 6 sigma discrepancy between the two most precise methods for measuring the expansion rate of our Universe. The most promising resolutions of the tension employ “early” new physics to modify the sound horizon\, the standard ruler used in CMB and BAO based determinations of the expansion rate. A possibly related new piece of the puzzle might be the recent evidence for non-standard dark energy from the DESI experiment.\nhttps://indico.ijs.si/event/3014/
URL:https://web-f1.ijs.si/event/misha-gorshteyn-cabibbo-unitarity-anomaly-disappears/
LOCATION:https://www.youtube.com/@astroFMF/streams (F4 – FMF)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250707T110000
DTEND;TZID=Europe/Ljubljana:20250707T120000
DTSTAMP:20260403T215128
CREATED:20250528T102145Z
LAST-MODIFIED:20250707T093625Z
UID:61792-1751886000-1751889600@web-f1.ijs.si
SUMMARY:Raquel Molina: Quark mass dependence of hadron resonances
DESCRIPTION:https://indico.ijs.si/event/2976/
URL:https://web-f1.ijs.si/event/raquel-milona-quark-mass-dependence-of-hadron-resonances/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (F1 tea room)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250710T110000
DTEND;TZID=Europe/Ljubljana:20250710T120000
DTSTAMP:20260403T215128
CREATED:20250701T130658Z
LAST-MODIFIED:20250710T093831Z
UID:65058-1752145200-1752148800@web-f1.ijs.si
SUMMARY:David Kaplan: Shadow Matter
DESCRIPTION:I will review how one gets classical physics from quantum theories.  Then I will show that there are quantum states of the field theories of general relativity and electromagnetism that we typically ignore\, but have interesting phenomenological effects.  These states amount to loosening the constraint equations in GR and EM.   Doing so in GR sources non-dynamical parts of the metric which mimic a pressureless dust\, with some odd features\, and thus these effects may be the explanation as to why we think there is dark matter.  The constraint in EM is Gauss’ Law\, and turning it off mimics a charge density that does not respond to electric forces\, but follows geodesics.   I will briefly discuss the cosmological consequences of these new fields and potential studies.\nhttps://indico.ijs.si/event/3015/
URL:https://web-f1.ijs.si/event/david-kaplan/
LOCATION:https://www.youtube.com/@astroFMF/streams (F2 – FMF)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250710T140000
DTEND;TZID=Europe/Ljubljana:20250710T150000
DTSTAMP:20260403T215128
CREATED:20250612T102050Z
LAST-MODIFIED:20250710T123702Z
UID:63356-1752156000-1752159600@web-f1.ijs.si
SUMMARY:Fabio Staniscia (TBA)
DESCRIPTION:https://indico.ijs.si/event/3006/
URL:https://web-f1.ijs.si/event/fabio-staniscia-tba-4/
LOCATION:A/1-106 – Seminarska soba fizike (F5) (Jamova)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250725T160000
DTEND;TZID=Europe/Ljubljana:20250725T170000
DTSTAMP:20260403T215128
CREATED:20250722T081726Z
LAST-MODIFIED:20250725T135504Z
UID:67180-1753459200-1753462800@web-f1.ijs.si
SUMMARY:Lorenzo Ubaldi: Schwinger current in de Sitter
DESCRIPTION:We study classical background electric fields and the Schwinger effect in de Sitter space. We show that having a constant electric field in de Sitter requires the photon to have a tachyonic mass proportional to the Hubble scale. This has physical implications for the induced Schwinger current which affect its IR behaviour. To study this we recompute the Schwinger current in de Sitter space for charged fermions and minimally coupled scalars imposing a physically consistent renormalization condition. We find a finite and positive Schwinger current even in the massless limit. This is in contrast to previous calculations in the literature which found a negative IR divergence. We also obtain the first result of the Schwinger current for a non-minimally coupled scalar\, including for a conformally coupled scalar which we find has very similar behaviour to the fermion current. Our results may have physical implications for both magnetogenesis and inflationary dark matter production.\nhttps://indico.ijs.si/event/3030/
URL:https://web-f1.ijs.si/event/lorenzo-ubaldi-schwinger-current-in-de-sitter/
LOCATION:https://zoom.us/j/94950883072 (F1 – tea room)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250904T153000
DTEND;TZID=Europe/Ljubljana:20250904T163000
DTSTAMP:20260403T215128
CREATED:20250606T000643Z
LAST-MODIFIED:20250904T142621Z
UID:62673-1756999800-1757003400@web-f1.ijs.si
SUMMARY:Basudeb Dasgupta: Probing Dark Matter with Low-Mass Black Holes
DESCRIPTION:Heavy non-annihilating dark matter captured by neutron stars can trigger collapse into low-mass black holes\, producing subsolar-mass mergers detectable by gravitational wave observatories. These events probe dark matter-nucleon interactions at cross-sections below the neutrino floor and dark matter masses from GeV to PeV. Existing LIGO/Virgo data already place strong bounds; future detections could reveal dark core collapse and explain anomalies like the missing pulsars near the Galactic Center. I will discuss how to distinguish low-mass black holes from neutron stars via gravitational wave signatures\, and how this affects sensitivity to dark matter.\nhttps://indico.ijs.si/event/2816/
URL:https://web-f1.ijs.si/event/basudeb-dasgupta-tba/
LOCATION:A/1-106 – Seminarska soba fizike (F5)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250911T140000
DTEND;TZID=Europe/Ljubljana:20250911T150000
DTSTAMP:20260403T215128
CREATED:20250828T081343Z
LAST-MODIFIED:20250911T124404Z
UID:70892-1757599200-1757602800@web-f1.ijs.si
SUMMARY:Katarina Kokalj\, "Newton black films"
DESCRIPTION:https://indico.ijs.si/event/3050/
URL:https://web-f1.ijs.si/event/katarina-kokalj-newton-black-films/
LOCATION:A/1-106 – Seminarska soba fizike (F5) (Jamova)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250918T153000
DTEND;TZID=Europe/Ljubljana:20250918T163000
DTSTAMP:20260403T215128
CREATED:20250825T092555Z
LAST-MODIFIED:20250918T142845Z
UID:70599-1758209400-1758213000@web-f1.ijs.si
SUMMARY:Damir Bečirević: Why the radiative decays of quarkonia are important
DESCRIPTION:TBA\nhttps://indico.ijs.si/event/3046/
URL:https://web-f1.ijs.si/event/damir-becirevic-why-the-radiative-decays-of-quarkonia-are-important/
LOCATION:A/1-106 – Seminarska soba fizike (F5)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250925T153000
DTEND;TZID=Europe/Ljubljana:20250925T163000
DTSTAMP:20260403T215128
CREATED:20250711T000656Z
LAST-MODIFIED:20250925T141340Z
UID:66035-1758814200-1758817800@web-f1.ijs.si
SUMMARY:Ryan Plestid: Detecting dark matter with a picogram detector
DESCRIPTION:Dark matter direct detection is dominated by a landscape of macroscopic detectors. How then can quantum sensors\, such as an atom interferometer compete? In this talk I will outline recent work on how large coherent enhancements amplify dark matter signals in an atom interferometer. All of the necessary theory is elementary quantum mechanics\, and yet the role of N-enhancements is subtle\, due to the many-branched nature of an atom intereferometer’s wave function. \n \nBased on: 2402.03421  and 2509.13417\nhttps://indico.ijs.si/event/3028/
URL:https://web-f1.ijs.si/event/ryan-plestid-tba/
LOCATION:A/1-106 – Seminarska soba fizike (F5)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250930T150000
DTEND;TZID=Europe/Ljubljana:20250930T160000
DTSTAMP:20260403T215128
CREATED:20250929T063333Z
LAST-MODIFIED:20250930T133059Z
UID:74111-1759244400-1759248000@web-f1.ijs.si
SUMMARY:Jose Espinosa: Surprises in Vacuum Decay
DESCRIPTION:In the standard lore the decay of the false vacuum of a single-field potential is described by a semi-classical Euclidean bounce configuration that can be found using overshoot/undershoot algorithms\, and whose action suppresses exponentially the decay rate. While this is generically correct\, the vacuum decay structure can be far richer. In some cases there is no bounce and decay proceeds via the so-called pseudo-bounces. In the general case with bounce\, there are 2n+1 bounces\, with n ranging from 0 (the standard case) to ∞. Some of these decays occur via “antibounces” which have the wrong behavior for overshoot/undershoot algorithms\, that can miss them. Bounce and antibounce configurations form n pairs connected by pseudo-bounces.\nhttps://indico.ijs.si/event/3088/
URL:https://web-f1.ijs.si/event/jose-espinosa-surprises-in-vacuum-decay/
LOCATION:C/2-X – F1 čajnica
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20251002T110000
DTEND;TZID=Europe/Ljubljana:20251002T120000
DTSTAMP:20260403T215128
CREATED:20250829T092814Z
LAST-MODIFIED:20251002T095738Z
UID:71007-1759402800-1759406400@web-f1.ijs.si
SUMMARY:Santiago Tanco: Bayesian tools for the LHC: a proof of concept in di-Higgs searches
DESCRIPTION:Extracting reliable physical information from collider data requires a combination of mathematical\, computational and statistical tools to model observed distributions\, often with the help of powerful simulations. But when simulations cannot be fully trusted\, data-driven approaches become indispensable. In this talk\, I will present Bayesian tools that provide a flexible\, data-driven method for unsupervised training on probabilistic models of collider observables\, highlighting their advantages for parameter inference and uncertainty estimation. I will illustrate these points in the context of pp > hh > bbbb searches\, where recent analyses use a variation of the widely used data-driven “ABCD method”. Within our framework\, the ABCD method can be generalized and improved\, especially when its assumptions are not exactly satisfied\, leading to more robust background subtraction. Our approach is able to exploit correlations in multi-dimensional data by modelling kinematic variables and b-tagging scores at the event level. These results also show a way in which simulations can be used as guides for unsupervised estimation of the true data distributions. Based on 2402.08001 and ongoing research.\nhttps://indico.ijs.si/event/3054/
URL:https://web-f1.ijs.si/event/santiago-tanco/
LOCATION:A/1-106 – Seminarska soba fizike (F5)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20251006T150000
DTEND;TZID=Europe/Ljubljana:20251006T160000
DTSTAMP:20260403T215128
CREATED:20250930T111454Z
LAST-MODIFIED:20251006T134601Z
UID:74243-1759762800-1759766400@web-f1.ijs.si
SUMMARY:Bhabani Tripathy: doubly heavy tetraquarks
DESCRIPTION:Doubly heavy tetraquarks\nhttps://indico.ijs.si/event/3101/
URL:https://web-f1.ijs.si/event/bhabani-tripathy-doubly-heavy-tetraquarks/
LOCATION:F1 tea room
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20251009T110000
DTEND;TZID=Europe/Ljubljana:20251009T120000
DTSTAMP:20260403T215128
CREATED:20251002T084230Z
LAST-MODIFIED:20251009T093114Z
UID:74441-1760007600-1760011200@web-f1.ijs.si
SUMMARY:Aminul Islam Chowdhury: QCD medium in strong magnetic fields
DESCRIPTION:QCD medium in strong magnetic fields\nhttps://indico.ijs.si/event/3103/
URL:https://web-f1.ijs.si/event/aminul-islam-chowdhury-tba/
LOCATION:F1 tea room
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20251009T140000
DTEND;TZID=Europe/Ljubljana:20251009T150000
DTSTAMP:20260403T215128
CREATED:20250828T081343Z
LAST-MODIFIED:20251009T123255Z
UID:70893-1760018400-1760022000@web-f1.ijs.si
SUMMARY:Franci Merzel\, "Why are atomistic simulations (still) fascinating?"
DESCRIPTION:In this lecture\, I will touch upon the development of methods and examples of the use of simulations in studying basic phenomena such as hydration of biomolecules\, ligand binding\, mechanisms related to biological function. We will also focus on the role of simulations in the interpretation of experimental data\, especially in connection with neutron scattering\, vibrational and NMR spectroscopy and cryo-electron microscopy. We will also talk about methodological solutions for overcoming size and time scales in MD simulations and about the importance of atomistic simulations in the age of AI.\nhttps://indico.ijs.si/event/3052/
URL:https://web-f1.ijs.si/event/franci-merzel-tba-2/
LOCATION:A/1-106 – Seminarska soba fizike (F5) (Jamova)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20251016T110000
DTEND;TZID=Europe/Ljubljana:20251016T120000
DTSTAMP:20260403T215128
CREATED:20250911T001228Z
LAST-MODIFIED:20251016T092758Z
UID:72273-1760612400-1760616000@web-f1.ijs.si
SUMMARY:Manuel Morales: Parton distribution perspectives: future facilities and interplay with new physics
DESCRIPTION:The precise determination of parton distribution functions (PDFs) is essential for accurate predictions of observables at hadron colliders. In this seminar\, we will explore two complementary aspects of the future of PDF studies. The first concerns the potential of upcoming experimental facilities (e.g. a muon collider) to provide new constraints on PDFs and other parameters of interest. The second focuses on their interplay with signals of new physics: since PDFs are generally extracted under Standard Model (SM) assumptions\, inconsistencies may arise when they are used to interpret or predict beyond the SM (BSM) phenomena. In this seminar\, we will introduce and discuss key aspects of this PDF–BSM interplay and its broader implications for collider phenomenology.\nhttps://indico.ijs.si/event/3076/
URL:https://web-f1.ijs.si/event/manuel-morales/
LOCATION:A/1-106 – Seminarska soba fizike (F5)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20251016T140000
DTEND;TZID=Europe/Ljubljana:20251016T153000
DTSTAMP:20260403T215128
CREATED:20250929T134359Z
LAST-MODIFIED:20251016T131452Z
UID:74156-1760623200-1760628600@web-f1.ijs.si
SUMMARY:Tanmoy Sarkar (TBA)
DESCRIPTION:https://indico.ijs.si/event/3099/
URL:https://web-f1.ijs.si/event/tanmoy-sarkar-tba-4/
LOCATION:A/1-106 – Seminarska soba fizike (F5) (Jamova)
END:VEVENT
END:VCALENDAR