Results 21 to 30 of about 3,569,422 (339)
Field theory entropy, the
, 1996 We consider entropy and relative entropy in Field theory and establish relevant monotonicity properties with respect to the couplings. The relative entropy in a field theory with a hierarchy of renormalization group fixed points ranks the fixed points ...
José Gaite, Denjoe O’Connor
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Stochastic dynamics for group field theories
Physical Review D, 2023 76 pages, 18 ...
Vincent Lahoche, Dine Ousmane Samary
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Double field theory on group manifolds [PDF]
Journal of High Energy Physics, 2015 A new version of double field theory (DFT) is derived for the exactly solvable background of an in general left-right asymmetric WZW model in the large level limit. This generalizes the original DFT that was derived via expanding closed string field theory on a torus up to cubic order.
Ralph Blumenhagen +4 more
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(No) phase transition in tensorial group field theory
Physics Letters B, 2021 Continuum spacetime is expected to emerge via phase transition in discrete approaches to quantum gravity. A promising example is tensorial group field theory but its phase diagram remains an open issue.
Andreas G.A. Pithis, Johannes Thürigen
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Overlap singularity and time evolution in integrable quantum field theory
Journal of High Energy Physics, 2018 We study homogeneous quenches in integrable quantum field theory where the initial state contains zero-momentum particles. We demonstrate that the two-particle pair amplitude necessarily has a singularity at the two-particle threshold.
D. X. Horváth, M. Kormos, G. Takács
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Out-of-horizon correlations following a quench in a relativistic quantum field theory
Journal of High Energy Physics, 2020 One of the manifestations of relativistic invariance in non-equilibrium quantum field theory is the “horizon effect” a.k.a. light-cone spreading of correlations: starting from an initially short-range correlated state, measurements of two observers at ...
I. Kukuljan, S. Sotiriadis, G. Takács
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Inverse Renormalization Group in Quantum Field Theory [PDF]
Physical Review Letters, 2022 We propose inverse renormalization group transformations within the context of quantum field theory that produce the appropriate critical fixed point structure, give rise to inverse flows in parameter space, and evade the critical slowing down effect in calculations pertinent to criticality.
Bachtis, Dimitrios +3 more
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Hydrodynamics of massless integrable RG flows and a non-equilibrium c-theorem
Journal of High Energy Physics, 2019 We study Euler scale hydrodynamics of massless integrable quantum field theories interpolating between two non-trivial renormalisation group fixed points after inhomogeneous quantum quenches.
D. X. Horváth
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Stationary cosmology in group field theory
Physical Review D, 2023 11 pages, 8 figures; revtex, two-column format, corrected ...
Steffen Gielen, Robert Santacruz
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Initial states in integrable quantum field theory quenches from an integral equation hierarchy
Nuclear Physics B, 2016 We consider the problem of determining the initial state of integrable quantum field theory quenches in terms of the post-quench eigenstates. The corresponding overlaps are a fundamental input to most exact methods to treat integrable quantum quenches ...
D.X. Horváth, S. Sotiriadis, G. Takács
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