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Title: From Volume as a Clock to Boundary Dynamics in JT Gravity Speaker: Farbod-Sayyed Rassouli (University of Nottingham) Venue&Time: 11:30 / Blue Room Abstract: Different notions of time arise from different choices of observer. In cosmological settings, a particularly natural choice is the spacetime volume, which is conjugate to the cosmological constant. This leads to […]
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Every Tuesday at 2:00 PM in the discussion room on the 5th floor. Join the IFT cosmology/gravity journal club at benty-fields.com to vote for papers and volunteer to present them |
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Title: 'Polynomial-time thermalization and Gibbs sampling from system-bath couplings' Speaker: Sam Slezak (ENS Lyon) Venue&Time: Gray Room 3 / 11:30 Abstract: Many physical phenomena, including thermalization in open quantum systems and quantum Gibbs sampling, are modeled by Lindbladians approximating a system weakly coupled to a bath. Understanding the convergence speed of these Lindbladians to their […] |
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Strings, Pheno and the Swampland (SPS) Journal Club Title: Sharpened Dynamical Cobordism Speaker: Alejandro Javier Puga Gómez (IFT) Venue&Time: Red Room / 12:00 Abstract: We propose a sharpened version of Dynamical Cobordism, where the physical structure ξ of the theory in question determines an allowed range Rξ for the critical exponent δ. We interpret a singularity with δ∈Rξ as a true transition-to-nothing, […]
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Valeria Costa (IFT) will present: Cosmological Lower Bound on Heavy-Neutrino Masses, de B. W. Lee y S. Weinberg. Venue&Time: Blue Room / 17:00 Abstract: The present cosmic mass density of possible-stable neutral heavy leptons is calculated in a standard cosmological model. In order for this density not to exceed the upper limit of 2*10^-29 g/cm^3, […] |
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Quantum Information Journal Club: ‘Onset of Ergodicity Across Scales on a Digital Quantum Processor’
Quantum Information Journal Club: ‘Onset of Ergodicity Across Scales on a Digital Quantum Processor’
Title: 'Onset of Ergodicity Across Scales on a Digital Quantum Processor' Speaker: Marcos Crichigno (Phasecraft) Venue & Time: Gray Room 3 / 11:30 Abstract: Boltzmann’s ergodic hypothesis lies at the foundation of classical statistical mechanics, yet its quantum counterpart remains far less understood. In this talk, I will discuss a quantum-information-theoretic measure of quantum ergodicity […] |
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Title: Boundary entropy and entanglement phase transitions in holographic ICFTs Speaker: Evangelos Afxonidis (University of Oviedo) Venue&Time: 11:30 / Gray Room 3 Abstract: In 1+1 dimensional conformal field theory with a boundary, the boundary contribution to the entanglement entropy is encoded in a single number g, effectively counting the boundary degrees of freedom. In contrast, […]
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Every Tuesday at 2:00 PM in the discussion room on the 5th floor. Join the IFT cosmology/gravity journal club at benty-fields.com to vote for papers and volunteer to present them |
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Mikel Martin (IFT) will present "Large scale perturbations in the open universe", by D. H. Lyth, & A. Woszczyna, Venue&Time: Blue Room / 17:00 Abstract: When considering perturbations in an open (Omega<1) universe, cosmologists retain only sub-curvature modes (defined as eigenfunctions of the Laplacian whose eigenvalue is less than -1 in units of the curvature […] |
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