Results 21 to 30 of about 72,880 (178)
Stochastic analysis & discrete quantum systems
Nuclear Physics B, 2019 We explore the connections between the theories of stochastic analysis and discrete quantum mechanical systems. Naturally these connections include the Feynman-Kac formula, and the Cameron-Martin-Girsanov theorem.
Anastasia Doikou +2 more
doaj +1 more source
How to perform the coherent measurement of a curved phase space by continuous isotropic measurement. I. Spin and the Kraus-operator geometry of $\mathrm{SL}(2,\mathbb{C})$ [PDF]
Quantum, 2023 The generalized $Q$-function of a spin system can be considered the outcome probability distribution of a state subjected to a measurement represented by the spin-coherent-state (SCS) positive-operator-valued measure (POVM).
Christopher S. Jackson, Carlton M. Caves
doaj +1 more source
Stochastic exclusion processes versus coherent transport [PDF]
, 2010 Stochastic exclusion processes play an integral role in the physics of non-equilibrium statistical mechanics. These models are Markovian processes, described by a classical master equation.
Augusiak R +12 more
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On stochastic quantisation of supersymmetric theories
Physics Letters B, 2019 We explain how stochastic TQFT supersymmetry can be made compatible with space supersymmetry. Taking the case of N=2 supersymmetric quantum mechanics, (the proof would be the same for the Wess–Zumino model), we determine the kernels that ensure the ...
Laurent Baulieu
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Entropy production and information fluctuations along quantum trajectories [PDF]
, 2013 Employing the stochastic wave function method, we study quantum features of stochastic entropy production in nonequilibrium processes of open systems. It is demonstarted that continuous measurements on the environment introduce an additional, non-thermal
Breuer, H. -P. +3 more
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Physical Review Research, 2021 The fermion sign problem, when severe, prevents the computation of physical quantities of a system of interacting fermions via stochastic evaluation of its path integral.
Andrei Kryjevski +2 more
doaj +1 more source
Physics Letters B, 2021 We report on a novel phenomenon of particle cosmology, which features specific cosmological phase transitions via quantum tunnelings through multiple vacua.
Zihan Zhou +5 more
doaj +1 more source
Fluctuation theorems for quantum master equations [PDF]
, 2006 A quantum fluctuation theorem for a driven quantum subsystem interacting with its environment is derived based solely on the assumption that its reduced density matrix obeys a closed evolution equation i.e. a quantum master equation (QME).
Esposito, Massimiliano, Mukamel, Shaul
core +2 more sources
(Non) equilibrium dynamics: a (broken) symmetry of the Keldysh generating functional
SciPost Physics, 2018 We unveil the universal (model-independent) symmetry satisfied by Schwinger-Keldysh quantum field theories whenever they describe equilibrium dynamics.
Camille Aron, Giulio Biroli, Leticia F. Cugliandolo
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Stable solvers for real-time Complex Langevin
Journal of High Energy Physics, 2021 This study explores the potential of modern implicit solvers for stochastic partial differential equations in the simulation of real-time complex Langevin dynamics.
Daniel Alvestad +2 more
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