Results 21 to 30 of about 853,943 (289)

Ghostbusters: unitarity and causality of non-equilibrium effective field theories [PDF]

Journal of High Energy Physics, 2020
Abstract: For a non-equilibrium physical system defined along a closed time path (CTP), a key constraint is the so-called largest time equation, which is a consequence of unitarity and implies causality. In this paper, we present a simple proof that if the propagators of a non-equilibrium effective action have the proper pole structure, the largest ...
Ping Gao, Paolo Glorioso, Hong Liu
openaire   +5 more sources

Schwinger-Dyson approach to non-equilibrium classical field theory [PDF]

, 2001
In this paper we discuss a Schwinger-Dyson [SD] approach for determining the time evolution of the unequal time correlation functions of a non-equilibrium classical field theory, where the classical system is described by an initial density matrix at ...
A. Chodos, A. Chodos, A.B. Migdal, A.H. Guth, A.K. Kerman, A.N. Vasil’ev, A.N. Vasil’ev, B. Mihaila, B. Mihaila, B. Mihaila, Bogdan Mihaila, C. De Dominicis, C. De Dominicis, C. De Dominicis, C. Wetterich, C.M. Bender, D. Boyanovsky, D. Boyanovsky, D. Boyanovsky, D. Boyanovsky, D. Boyanovsky, D. Boyanovsky, D. Vautherin, E.A. Calzetta, E.A. Calzetta, F. Cooper, F. Cooper, F. Cooper, F. Cooper, F. Cooper, F. Cooper, F. Cooper, F. Cooper, Fred Cooper, G. Aarts, G. Aarts, G. Baym, G. Parisi, G. Zhou, G.F. Bonini, H.D. Dahmen, H.D. Dahmen, J. Schwinger, J.M. Luttinger, J.R. Schrieffer, John F. Dawson, Krastan B. Blagoev, L. Bettencourt, L.V. Keldysh, M.A. Lampert, M.M. Cornwall, P.C. Martin, P.M. Bakshi, P.M. Bakshi, R. Jackiw, R.H. Kraichnan, R.H. Kraichnan, R.H. Kraichnan, S.-Y. Pi, W. Buchmüller, W. Buchmüller, Y. Kluger   +61 more
core   +2 more sources

Extending the thermodynamic form factor bootstrap program: multiple particle-hole excitations, crossing symmetry, and reparameterization invariance

Journal of High Energy Physics, 2023
In this study, we further the thermodynamic bootstrap program which involves a set of recently developed ideas used to determine thermodynamic form factors of local operators in integrable quantum field theories. These form factors are essential building
Miłosz Panfil, Robert M. Konik
doaj   +1 more source

The out-equilibrium 2D Ising spin glass: almost, but not quite, a free-field theory [PDF]

, 2018
We consider the spatial correlation function of the two-dimensional Ising spin glass under out-equilibrium conditions. We pay special attention to the scaling limit reached upon approaching zero temperature.
Fernandez, L. A., Marinari, E., Martin-Mayor, V., Parisi, G., Ruiz-Lorenzo, J. J.   +4 more
core   +2 more sources

Entanglement negativity and entropy in non-equilibrium conformal field theory

Nuclear Physics B, 2015
We study the dynamics of the entanglement in one-dimensional critical quantum systems after a local quench in which two independently thermalized semi-infinite halves are joined to form a homogeneous infinite system and left to evolve unitarily.
Marianne Hoogeveen, Benjamin Doyon
doaj   +1 more source

Non-Equilibrium Statistical Mechanics of Classical Lattice $\phi^4$ Field Theory [PDF]

, 2000
Classical $\phi^4$ theory in weak and strong thermal gradients is studied on the lattice in (1+1) dimensions. Classical $\phi^4$ theory in weak and strong thermal gradients is studied on the lattice in (1+1) dimensions.
Aarts, Aarts, Alder, Antropov, Aoki, Aoki, Aoki, Bhattacharya, Bulgac, Caiani, Casati, Chernov, Dimitri Kusnezov, Dorfman, Ernst, Ernst, Evans, Gangnus, Gaspard, Gillian, Gillian, Grigoriev, Hafskjold, Hatano, Herring, Hoover, Hoover, Hosoya, Jeon, Jeon, Jou, Kaburaki, Kajantie, Kenichiro Aoki, Kusnezov, Kusnezov, Kusnezov, Kusnezov, Kusnezov, Kusnezov, Lepri, Lepri, Lifshits, Loose, Mareschal, Mareschal, McLennan, Mimnagh, Moran, Nosé, Nosé, Parisi, Parisi, Pomeau, Prosen, Takesue, Tenenbaum, Tenenbaum, Ziebland, Zubarev, Zwanzig   +60 more
core   +2 more sources

Thermal three-point functions from holographic Schwinger-Keldysh contours

Journal of High Energy Physics, 2023
We compute fully retarded scalar three-point functions of holographic CFTs at finite temperature using real-time holography. They describe the nonlinear response of a holographic medium under scalar forcing, and display single and higher-order poles ...
Christiana Pantelidou, Benjamin Withers
doaj   +1 more source

Non-equilibrium dynamics of a thermal plasma in a gravitational field [PDF]

, 1998
We introduce functional methods to study the non-equilibrium dynamics of a quantum massless scalar field at finite temperature in a gravitational field.
A. Campos, A. Campos, A. Campos, A. Einstein, A. Einstein, A. J. Niemi, A. J. Niemi, A. Matacz, A. Matacz, A. Niégawa, A. O. Caldeira, A. P. de Almeida, A. Rebhan, A. Rebhan, Antonio Campos, B. L. Hu, B. S. DeWitt, B.-L. Hu, B.-L. Hu, B.-L. Hu, B.-L. Hu, B.-L. Hu, B.-L. Hu, B.-L. Hu, B.-L. Hu, C.-I. Kuo, D. Boyanovsky, D. Boyanovsky, D. J. Gross, D. S. Jones, E. Calzetta, E. Calzetta, E. Calzetta, E. Calzetta, E. Calzetta, E. Calzetta, E. E. Flanagan, E. Mottola, F. C. Lombardo, F. Cooper, F. T. Brandt, F. T. Brandt, G. W. Semenoff, G. Zhou, H. A. Weldon, H. B. Callen, H. B. Callen, H. Nachbagauer, H. Nachbagauer, H. Nachbagauer, H. Nyquist, J. Frenkel, J. J. Halliwell, J. P. Paz, J. Schwinger, J. Schwinger, J. Weber, K. Chou, L. Chen, L. Landau, L. P. Kadanoff, L. V. Keldysh, M. Gleiser, M. Le Bellac, N. D. Birrell, N. G. Phillips, N. P. Landsman, P. C. Martin, P. Candelas, P. M. Bakshi, P. M. Bakshi, P. S. Gribosky, R. D. Jordan, R. D. Jordan, R. Jackiw, R. Kubo, R. Kubo, R. Kubo, R. L. Kobes, R. Mills, R. P. Feynman, R. P. Feynman, S. A. Ramsey, S. A. Ramsey, U. Kraemmer, W. Bernard   +85 more
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Renormalized field theory for non-equilibrium systems

La Rivista del Nuovo Cimento
Peer ...
Antonov, Nikolay V., Hnatič, Michal, Honkonen, Juha, Kakin, Polina I., Lučivjanský, Tomáš, Mižišin, Lukáš   +5 more
  +5 more sources

An intuitive construction of modular flow

Journal of High Energy Physics, 2023
The theory of modular flow has proved extremely useful for applying thermodynamic reasoning to out-of-equilibrium states in quantum field theory. However, the standard proofs of the fundamental theorems of modular flow use machinery from Fourier analysis
Jonathan Sorce
doaj   +1 more source