Results 11 to 20 of about 908 (229)
Path Integrals in Noncommutative Quantum Mechanics [PDF]
Theoretical and Mathematical Physics, 2004 Extension of Feynman's path integral to quantum mechanics of noncommuting spatial coordinates is considered. The corresponding formalism for noncommutative classical dynamics related to quadratic Lagrangians (Hamiltonians) is formulated. Our approach is based on the fact that a quantum-mechanical system with a noncommutative configuration space may be ...
Dragovich, Branko, Rakic, Zoran
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Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2014 A quantum path integral was transformed into the real form using a complex representation of the time. Such procedure gives the possibility to specify measures for the sets of the virtual paths in continual integrals determining amplitudes of quantum ...
Natalia V Meleshko, Alexey Yu Samarin
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Unraveling looping efficiency of stochastic Cosserat polymers
Physical Review Research, 2022 Understanding looping probabilities, including the particular case of ring closure or cyclization, of fluctuating polymers (e.g., DNA) is important in many applications in molecular biology and chemistry.
Giulio Corazza, Raushan Singh
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A naturally regularized path integral formalism
European Physical Journal C: Particles and Fields, 2019 A minimal uncertainty in position measurement comes into play if, for instance, one incorporates gravitational interaction of photon and electron in the Heisenberg’s Electron Microscope Gedanken Experiment.
Kourosh Nozari +3 more
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Morlet Wavelets in Quantum Mechanics
Quanta, 2012 Wavelets offer significant advantages for the analysis of problems in quantum mechanics. Because wavelets are localized in both time and frequency they avoid certain subtle but potentially fatal conceptual errors that can result from the use of plane ...
John Ashmead
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European Physical Journal C: Particles and Fields, 2018 Given the classical dynamics of a non-relativistic particle in terms of a Hamiltonian or an action, it is relatively straightforward to obtain the non-relativistic quantum mechanics (NRQM) of the system.
T. Padmanabhan
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Anomaly-Induced Transport Phenomena from Imaginary-Time Formalism
Particles, 2019 A derivation of anomaly-induced transport phenomena—the chiral magnetic/vortical effect—is revisited based on the imaginary-time formalism of quantum field theory.
Masaru Hongo, Yoshimasa Hidaka
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Solving Caldeira-Leggett Model by Inchworm Method with Frozen Gaussian Approximation [PDF]
QuantumWe propose an algorithm that combines the inchworm method and the frozen Gaussian approximation to simulate the Caldeira-Leggett model in which a quantum particle is coupled with thermal harmonic baths.
Geshuo Wang, Siyao Yang, Zhenning Cai
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Feynman Path Integral and Landau Density Matrix in Probability Representation of Quantum States
PhysicsThe quantizer–dequantizer method is employed. Using the construction of probability distributions describing density operators of a quantum system states, the connection between the Feynman path integral and the time evolution of the density operator ...
Olga V. Man’ko
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Functional methods for false-vacuum decay in real time
Journal of High Energy Physics, 2019 We present the calculation of the Feynman path integral in real time for tunneling in quantum mechanics and field theory, including the first quantum corrections.
Wen-Yuan Ai +2 more
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