Results 261 to 270 of about 21,065,962 (295)
Role of Ultrafast Electron-Thermal-Phonon Interactions in High Harmonic Generation and Dephasing from Graphene. [PDF]
Herling A, Neufeld O.
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Non-equilibrium Effective Field Theory for Gravity
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Field Theory of Non-Equilibrium Systems
The physics of non-equilibrium many-body systems is a rapidly expanding area of theoretical physics. Traditionally employed in laser physics and superconducting kinetics, these techniques have more recently found applications in the dynamics of cold atomic gases, mesoscopic and nano-mechanical systems, and quantum computation.
Kamenev, Alex
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The Union of Quantum Field Theory and Non-Equilibrium Thermodynamics [PDF]
Quantum field theory is the language used to describe nature at its most fundamental scales; while thermodynamics is a framework to describe the collective behavior of macroscopic systems. Recent advances in non-equilibrium thermodynamics have enabled this framework to be applied to smaller systems operating out of thermal equilibrium.
Bartolotta, Anthony Leo
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Non-equilibrium quantum field theory and perturbation theory
Nuclear Physics A, 1995Abstract The perturbation theory is studied for a non-equilibrium situation of an interacting fermion-boson system. The structure of the Green function expansion is represented in the Keldysh-Schwinger formalism. A non-equilibrium Wick theorem is derived by expressing the expectation values of normal-ordered products, which do not vanish in non ...
R. Fauser, H.H. Wolter
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Quasi-Fixed Points in Non-Equilibrium Field Theory
AIP Conference Proceedings, 2003I summarize progress in describing classical and quantum fields out of equilibrium. Real‐time Monte Carlo methods play an important role in assessing various approximation schemes.
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Mean field theory for non-equilibrium quantum fields
Physica A: Statistical Mechanics and its Applications, 1989Abstract An approximation technique is provided for studying the time development out of equilibrium of thermal quantum fields, when they experience isoentropic but energy-non-conserving evolution. We implement approximately a variational principle that yields the Liouville-von Neumann equation when implemented exactly.
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Field Theory of Non-Equilibrium Systems, by A. Kamenev
Contemporary Physics, 2012Field Theory of Non-Equilibrium Systems, by A. Kamenev, Cambridge, Cambridge University Press, 2011, xiv + 356 pp., £45.00 (hardback), ISBN 9780521760829. Scope: textbook. Level: graduate.
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Approach to non-equilibrium behaviour in quantum field theory
Annals of Physics, 1989We study the real-time evolution of quantum field theoretic systems in non-equilibrium situations. Results are presented for the example of scalar /lambda//phi//sup 4/ theory. The degrees of freedom are discretized by studying the system on a torus. Short-wavelength modes are integrated out to one-loop order.
J Kripfganz, H Perlt
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