Results 21 to 30 of about 2,978,757 (308)
The gravitational path integral from an observer’s point of view [PDF]
Journal of High Energy PhysicsOne of the fundamental problems in quantum gravity is to describe the experience of a gravitating observer in generic spacetimes. In this paper, we develop a framework for describing non-perturbative physics relative to an observer using the ...
Ahmed I. Abdalla +3 more
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Continuous-Discrete Path Integral Filtering
Entropy, 2009 A summary of the relationship between the Langevin equation, Fokker-Planck-Kolmogorov forward equation (FPKfe) and the Feynman path integral descriptions of stochastic processes relevant for the solution of the continuous-discrete filtering problem is ...
Bhashyam Balaji
doaj +1 more source
Atmosphere, 2021 Kernel smoothers are often used in Lagrangian particle dispersion simulations to estimate the concentration distribution of tracer gasses, pollutants etc.
Gunther Bijloos, Johan Meyers
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The entropy production of Ornstein–Uhlenbeck active particles: a path integral method for correlations [PDF]
Journal of Statistical Mechanics: Theory and Experiment, 2019 By employing a path integral formulation, we obtain the entropy production rate for a system of active Ornstein–Uhlenbeck particles (AOUP) both in the presence and in the absence of thermal noise.
Lorenzo Caprini +3 more
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Q-curvature and path integral complexity
Journal of High Energy Physics, 2022 We discuss the interpretation of path integral optimization as a uniformization problem in even dimensions. This perspective allows for a systematical construction of the higher-dimensional path integral complexity in holographic conformal field theories
Hugo A. Camargo +2 more
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Path Integral Optimization as Circuit Complexity. [PDF]
Physical Review Letters, 2019 Early efforts to understand complexity in field theory have primarily employed a geometric approach based on the concept of circuit complexity in quantum information theory.
H. Camargo +3 more
semanticscholar +1 more source
Normalized Gaussian path integrals [PDF]
Physical Review E, 2020 Path integrals play a crucial role in describing the dynamics of physical systems subject to classical or quantum noise. In fact, when correctly normalized, they express the probability of transition between two states of the system. In this work, we show a consistent approach to solve conditional and unconditional Euclidean (Wiener) Gaussian path ...
Giulio Corazza, Matteo Fadel
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A probabilistic approach of Liouville field theory
Comptes Rendus. Physique, 2021 In this article, we present the Liouville field theory, which was introduced in the eighties in physics by Polyakov as a model for fluctuating metrics in 2D quantum gravity, and outline recent mathematical progress in its study. In particular, we explain
Rhodes, Rémi, Vargas, Vincent
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Path integral Monte Carlo simulation of degenerate electrons: Permutation-cycle properties. [PDF]
Journal of Chemical Physics, 2019 Being motivated by the surge of fermionic quantum Monte Carlo simulations at finite temperature, we present a detailed analysis of the permutation-cycle properties of path integral Monte Carlo (PIMC) simulations of degenerate electrons.
T. Dornheim +3 more
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No-Boundary Proposal as a Path Integral with Robin Boundary Conditions. [PDF]
Physical Review Letters, 2019 Realizing the no-boundary proposal of Hartle and Hawking as a consistent gravitational path integral has been a long-standing puzzle. In particular, it was demonstrated by Feldbrugge, Lehners, and Turok that the sum over all universes starting from a ...
A. Di Tucci, J. Lehners
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