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PRODID:-//Department of Theoretical Physics - ECPv6.5.1.5//NONSGML v1.0//EN
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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:20250330T010000
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TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20251026T010000
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BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20250605T153000
DTEND;TZID=Europe/Ljubljana:20250605T163000
DTSTAMP:20260422T221020
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:20260422T221020
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:20260422T221020
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:20260422T221020
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:20260422T221020
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:20260422T221020
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)
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