Results 251 to 260 of about 326,941 (274)
Some of the next articles are maybe not open access.
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.
openaire +1 more source
Field theory of monitored interacting fermion dynamics with charge conservation
Physical review BMeasurement-induced phase transitions (MIPTs) in monitored quantum dynamics are non-equilibrium phase transitions between quantum-chaotic (volume-law entangled) and entanglement-suppressed, area-law phases.
Haoyu Guo +3 more
semanticscholar +1 more source
Communications in Theoretical Physics
Understanding neural dynamics is a central topic in machine learning, non-linear physics, and neuroscience. However, the dynamics are non-linear, stochastic and particularly non-gradient, i.e., the driving force cannot be written as the gradient of a ...
Junbin Qiu, Haiping Huang
semanticscholar +1 more source
Understanding neural dynamics is a central topic in machine learning, non-linear physics, and neuroscience. However, the dynamics are non-linear, stochastic and particularly non-gradient, i.e., the driving force cannot be written as the gradient of a ...
Junbin Qiu, Haiping Huang
semanticscholar +1 more source
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.
openaire +1 more source
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
openaire +1 more source
Non-equilibrium fields and quantum kinetic theory in curved spaces
Physica A: Statistical Mechanics and its Applications, 1989Abstract The non-equilibrium evolution of a quantum field in a slowly varying background curved space is described in terms of a distribution (Wigner) function obeying a covariant transport equation.
openaire +1 more source
Perturbative non-equilibrium thermal field theory to all orders in gradient expansion
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2013Peter Millington, Apostolos Pilaftsis
exaly
Thermal Quantum Field Theory and Perturbative Non-Equilibrium Dynamics
Springer Theses, 2014Peter Millington
exaly
Thermal Quantum Field Theory and Perturbative Non-Equilibrium Dynamics
, 2013P. Millington
semanticscholar +1 more source