Results 1 to 10 of about 719,802 (285)
Reflected entropy and Markov gap in Lifshitz theories
Journal of High Energy Physics, 2023 We study the reflected entropy in (1+1)-dimensional Lifshitz field theory whose groundstate is described by a quantum mechanical model. Starting from tripartite Lifshitz groundstates, both critical and gapped, we derive explicit formulas for the Rényi ...
Clément Berthiere +2 more
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Irrelevant deformations of chiral bosons
Journal of High Energy Physics, 2021 We study T T ¯ $$ \mathrm{T}\overline{\mathrm{T}} $$ deformations of chiral bosons using the formalism due to Sen. For arbitrary numbers of left- and right-chiral bosons, we find that the T T ¯ $$ \mathrm{T}\overline{\mathrm{T}} $$ -deformed Lagrangian ...
Subhroneel Chakrabarti +3 more
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Quantum quench and thermalization to GGE in arbitrary dimensions and the odd-even effect
Journal of High Energy Physics, 2020 In many quantum quench experiments involving cold atom systems the post-quench phase can be described by a quantum field theory of free scalars or fermions, typically in a box or in an external potential.
Parijat Banerjee +3 more
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T T ¯ $$ T\overline{T} $$ deformations of non-relativistic models
Journal of High Energy Physics, 2021 The light-cone gauge approach to T T ¯ $$ T\overline{T} $$ deformed models is used to derive the T T ¯ $$ T\overline{T} $$ deformed matrix nonlinear Schrödinger equation, the Landau-Lifshitz equation, and the Gardner equation.
Chantelle Esper, Sergey Frolov
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T T ¯ $$ T\overline{T} $$ deformations and the width of fundamental particles
Journal of High Energy Physics, 2022 We provide a simple geometric meaning for deformations of so-called T T ¯ $$ T\overline{T} $$ type in relativistic and non-relativistic systems. Deformations by the cross products of energy and momentum currents in integrable quantum field theories are ...
John Cardy, Benjamin Doyon
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T T ¯ $$ T\overline{T} $$ flow as characteristic flows
Journal of High Energy Physics, 2023 We show that method of characteristics provides a powerful new point of view on T T ¯ $$ T\overline{T} $$ -and related deformations. Previously, the method of characteristics has been applied to T T ¯ $$ T\overline{T} $$ -deformation mainly to solve ...
Jue Hou
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Complementary projection defects and decomposition
Journal of High Energy Physics, 2021 As put forward in [1] topological quantum field theories can be projected using so-called projection defects. The projected theory and its correlation functions can be completely realized within the unprojected one.
Fabian Klos, Daniel Roggenkamp
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How planar superconductors cure their infrared divergences
Journal of High Energy Physics, 2022 Planar superconductors, emerging in thin films with thickness comparable to the superconducting coherence length, differ crucially from their bulk counterparts.
M. C. Diamantini +2 more
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Entanglement and confinement in coupled quantum systems
Journal of High Energy Physics, 2021 We study some general properties of coupled quantum systems. We consider simple interactions between two copies of identical Hamiltonians such as the SYK model, Pauli spin chains with random magnetic field and harmonic oscillators.
Fabien Alet +3 more
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Journal of High Energy Physics, 2022 We consider a one-parameter family of composite fields — bi-linear in the components of the stress-energy tensor — which generalise the T T ¯ $$ \mathrm{T}\overline{\mathrm{T}} $$ operator to arbitrary space-time dimension d ≥ 2. We show that they induce
Riccardo Conti +2 more
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