Results 41 to 50 of about 64,609 (182)

Correlation functions of warped CFT

Journal of High Energy Physics, 2018
Warped conformal field theory (WCFT) is a two dimensional quantum field theory whose local symmetry algebra consists of a Virasoro algebra and a U(1) Kac-Moody algebra. In this paper, we study correlation functions for primary operators in WCFT.
Wei Song, Jianfei Xu
doaj   +1 more source

Entanglement and separability in continuum Rokhsar-Kivelson states

Physical Review Research, 2022
We study a vast family of continuum Rokhsar-Kivelson (RK) states, which have their ground state encoded by a local quantum field theory. These describe certain quantum magnets, and are also important in quantum information.
Christian Boudreault, Clément Berthiere, William Witczak-Krempa   +2 more
doaj   +1 more source

Mean-field theory and fluctuation spectrum of a pumped decaying Bose-Fermi system across the quantum condensation transition [PDF]

, 2006
We study the mean-field theory, and the properties of fluctuations, in an out of equilibrium Bose-Fermi system, across the transition to a quantum condensed phase.
M. Szymańska, Jonathan Keeling, P. Littlewood   +2 more
semanticscholar   +1 more source

FZZT branes and non-singlets of matrix quantum mechanics

Journal of High Energy Physics, 2020
We explore the non-singlet sector of matrix quantum mechanics dual to c = 1 Liouville theory. The non-singlets are obtained by adding N f × N bi-fundamental fields in the gauged matrix quantum mechanics model as well as a one dimensional Chern-Simons ...
Panagiotis Betzios, Olga Papadoulaki
doaj   +1 more source

Decoherence of quantum superpositions in near-extremal Reissner-Nordström black holes with quantum gravity corrections

Journal of High Energy Physics
We study the quantum gravity corrected decoherence of quantum superpositions in the near-extremal Reissner-Nordström black holes. By employing the effective field theory approach, we model the black hole as a quantum system coupled to an external source ...
Ran Li, Zhong-Xiao Man, Jin Wang
doaj   +1 more source

One-loop corrections to the primordial tensor spectrum from massless isocurvature fields

Journal of High Energy Physics, 2020
We study one-loop corrections to the two-point correlation function of tensor perturbations in primordial cosmology induced by massless spectator matter fields.
Hai Siong Tan
doaj   +1 more source

Finite-temperature correlation function for the one-dimensional quantum ising model : The virial expansion [PDF]

, 2006
We rewrite the exact expression for the finite temperature two-point correlation function for the magnetization as a partition function of some field theory.
S. A. Reyes, A. Tsvelik
semanticscholar   +1 more source

Towards the non-perturbative cosmological bootstrap

Journal of High Energy Physics, 2023
We study quantum field theory on a de Sitter spacetime dS d+1 background. Our main tool is the Hilbert space decomposition in irreducible unitary representations of its isometry group SO(d + 1, 1). As the first application of the Hilbert space formalism,
Matthijs Hogervorst, Joao Penedones, Kamran Salehi Vaziri   +2 more
doaj   +1 more source

A differential representation of cosmological wavefunctions

Journal of High Energy Physics, 2022
Our understanding of quantum field theory rests largely on explicit and controlled calculations in perturbation theory. Because of this, much recent effort has been devoted to improve our grasp of perturbative techniques on cosmological spacetimes. While
Aaron Hillman, Enrico Pajer
doaj   +1 more source

Form Factors and Correlation Functions of $\mathrm{T}\overline{\mathrm{T}}$-Deformed Integrable Quantum Field Theories [PDF]

, 2023
Olalla A. Castro-Alvaredo, Stefano Negro, Fabio Sailis   +2 more
openalex   +1 more source