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X-WR-CALDESC:Events for Department of Theoretical Physics
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DTSTART:20220327T010000
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DTSTART;TZID=Europe/Ljubljana:20220707T110000
DTEND;TZID=Europe/Ljubljana:20220707T120000
DTSTAMP:20260427T043004
CREATED:20220414T084239Z
LAST-MODIFIED:20220414T101238Z
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SUMMARY:Philipp Schicho: Gauge-invariant bubble nucleation rate in finite temperature effective field theory
DESCRIPTION:A gauge-invariant framework for computing bubble nucleation rates at finite temperature in the presence of radiative barriers was presented and advocated for model-building and phenomenological studies in an accompanying article arXiv:2112.05472. Here\, we detail this computation using the Abelian Higgs Model as an illustrative example. Subsequently\, we recast this approach in the dimensionally-reduced high-temperature effective field theory for nucleation. This allows one to include several higher order thermal resummations and furthermore delineate clearly the approach’s limits of validity. This approach provides for robust perturbative treatments of bubble nucleation during possible first order cosmic phase transitions\, with implications for electroweak baryogenesis and production of a stochastic gravitational wave background. Furthermore\, it yields a sound comparison between results of perturbative and non-perturbative computations.\nhttps://indico.ijs.si/event/1443/
URL:https://web-f1.ijs.si/event/philipp-schicho-gauge-invariant-bubble-nucleation-rate-in-finite-temperature-effective-field-theory/
LOCATION:https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (Zoom)
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DTSTART;TZID=Europe/Ljubljana:20220719T123000
DTEND;TZID=Europe/Ljubljana:20220719T133000
DTSTAMP:20260427T043004
CREATED:20220630T073605Z
LAST-MODIFIED:20220704T154012Z
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SUMMARY:[Biophysics seminar] Haim Taitelbaum: "Spreading of Metal on Metal-on-glass at Room Temperature"
DESCRIPTION:We study the spreading of mercury droplets on thin metal (silver or gold) films on glass at room temperature\, which is the only known system of reactive-wetting at room temperature. We show that there exist two main regimes\, the bulk propagation regime and the interface kinetic roughening regime. In both regimes\, rich spatio-temporal patterns are observed. We characterize these patterns using statistical physics tools\, such as the growth\, roughness  and persistence exponents\, and show some recent exotic DLA-like patterns obtained in experiments.\n\n\n\nThe meeting will take place in the tea room of the F1 department.
URL:https://web-f1.ijs.si/event/biophysics-seminar-haim-taitelbaum-spreading-metal-room-temperature/
LOCATION:F1  tearoom
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