搜索结果: 1-15 共查到“path integrals”相关记录15条 . 查询时间(0.046 秒)
Homotopy and Path Integrals
Homotopy Path Integral Multiply-connected space Spin Aharonov Bohm effect
2011/9/29
Abstract: This is an introductory review of the connection between homotopy theory and path integrals, mainly focus on works done by Schulman [23] that he compared path integral on SO(3) and its unive...
A White Noise Approach to Phase Space Feynman Path Integrals
White Noise Analysis Feynman Integrals Mathematical Physics
2011/1/18
The concepts of phase space Feynman integrals in White Noise Analysis are established.As an example the harmonic oscillator is treated. The approach perfectly reproduces the right physics. I.e. , solu...
Path Integrals for Quadratic Lagrangians on p-Adic and Adelic Spaces
Path Integrals Quadratic Lagrangians p-Adic Adelic Spaces
2010/12/27
Feynman's path integrals in ordinary, p-adic and adelic quantum mechanics are considered. The corresponding probability amplitudes $ K(x^{"},t^{"};x',t')$ for two-dimensional systems with quadratic L...
Thermal momentum distribution from path integrals with shifted boundary conditions
Thermal momentum distribution path integrals
2011/1/6
For a thermal field theory formulated in the grand canonical ensemble, the distribution of the total momentum is an observable characterizing the thermal state. We show that its cumulants are related ...
Thermal momentum distribution from path integrals with shifted boundary conditions
Thermal momentum distribution path integrals
2011/1/6
For a thermal field theory formulated in the grand canonical ensemble, the distribution of the total momentum is an observable characterizing the thermal state. We show that its cumulants are related ...
Fast Converging Path Integrals for Time-Dependent Potentials II: Generalization to Many-body Systems and Real-Time Formalism
Fast Converging Path Integrals Time-Dependent Potentials II
2010/12/27
Based on a previously developed recursive approach for calculating the short-time expansion of the propagator for systems with time-independent potentials and its time-dependent generalization for sim...
Thermal momentum distribution from path integrals with shifted boundary conditions
Thermal momentum distribution path integrals shifted boundary conditions
2010/12/27
For a thermal field theory formulated in the grand canonical ensemble, the distribution of the total momentum is an observable characterizing the thermal state. We show that its cumulants are related...
Thermal momentum distribution from path integrals with shifted boundary conditions
Thermal momentum distribution path integrals shifted boundary conditions
2011/1/14
For a thermal field theory formulated in the grand canonical ensemble, the distribution of the
total momentum is an observable characterizing the thermal state. We show that its cumulants
are relate...
Thermal momentum distribution from path integrals with shifted boundary conditions
Thermal momentum distribution path integrals shifted boundary conditions
2011/1/7
For a thermal field theory formulated in the grand canonical ensemble, the distribution of the
total momentum is an observable characterizing the thermal state. We show that its cumulants
are relate...
Fast Converging Path Integrals for Time-Dependent Potentials II: Generalization to Many-body Systems and Real-Time Formalism
Time-dependent potential Effective action Many-body system Imaginary time Real time
2010/11/25
Based on a previously developed recursive approach for calculating the short-time expansion of the propagator for systems with time-independent potentials and its time-dependent generalization for sim...
Path Integrals and the WKB approximation in Loop Quantum Cosmology
Path Integrals WKB approximation Loop Quantum Cosmology
2010/12/20
We follow the Feynman procedure to obtain a path integral formulation of loop quantum cosmology starting from the Hilbert space framework. Quantum geometry effects modify the weight associated with ea...
State and parameter estimation using Monte Carlo evaluation of path integrals
parameter estimation path integrals Monte Carlo
2010/4/6
Transferring information from observations of a dynamical system to estimate the fixed parameters and unobserved states of a system model can be formulated as the evaluation of a discrete time path in...
Path Integrals and Perturbation Theory for Stochastic Processes
Path Integrals Perturbation Theory Stochastic Processes
2010/10/27
We review and extend the formalism introduced by Peliti, that maps a Markov process to a pathintegral representation. After developing the mapping, we apply it to some illustrative examples: the simpl...
We discuss the formulation of spin observables associated to a non-relativistic spinning particles in terms of grassmanian differential operators. We use as configuration space variables for the pseud...
A Born-Oppenheimer approximation for path integrals with an application to electron solvation in polarizable fluids
A Born-Oppenheimer approximation path integrals an application to electron solvation polarizable fluids
2014/9/24
The Born-Oppenheimer approximation is introduced into the path integral expression for the canonical partition function. It is difficult to apply this to simulations. We devise a new adiabatic express...