Zobrazeno 1 - 10
of 10 226
pro vyhledávání: '"Path integral formulation"'
Autor:
Bao D. Tran, Zdzislaw E. Musielak
Publikováno v:
Mathematics, Vol 9, Iss 11, p 1213 (2021)
A new formulation of relativistic quantum mechanics is presented and applied to a free, massive, and spin-zero elementary particle in the Minkowski spacetime. The reformulation requires that time and space, as well as the timelike and spacelike inter
Externí odkaz:
https://doaj.org/article/2b54cfaec1924727b19f1d6e00ae93b5
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 60:1-13
Time-series interferograms acquired on a deep pit with a Ground-Based Synthetic Aperture Radar (GB-SAR) system showed that the atmospheric phase (AP) could be complexly space variant due to rapid changes of the weather conditions and steep topography
Publikováno v:
IEEE Transactions on Cybernetics. 52:312-322
Path integral policy improvement (PI^2) is known to be an efficient reinforcement learning algorithm, particularly, if the target system is a high-dimensional dynamical system. However, PI^2 , and its existing extensions, have adjustable parameters,
Autor:
Ye Mei, Yan Mo, Xiaoliang Pan, Yihan Shao, Yongle Li, Jia-Ning Wang, Wenxin Hu, Jun Zheng, Yuanfei Xue, Lu Wang
Publikováno v:
J Phys Chem A
Path integral molecular dynamics (PIMD) is becoming a routinely applied method for the incorporation of the nuclear quantum effect in computer simulations. However, direct PIMD simulations at an ab initio level of theory are formidably expensive. Usi
Autor:
Jens Aage Poulsen, Gunnar Nyman
Publikováno v:
The Journal of Physical Chemistry. a
The centroid effective frequency representation of path integrals as developed by Feynman and Kleinert was originally aimed at calculating partition functions and related quantities in the canonical ensemble. In its path integral formulation, only cl
Autor:
Arezu Jahanshir
Publikováno v:
Arab Journal of Nuclear Sciences and Applications. :1-5
The hyperatoms belong to the group of exotic atoms. An exotic hyperatom is a system where a negative muon as an electron in a normal atom is captured into an hyperatomic orbit around hypernuclei. Our knowledge of the non-relativistic quantum mechanic
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 10, Pp 1-103 (2021)
Journal of High Energy Physics
Journal of High Energy Physics
We formulate the path integral for Jackiw-Teitelboim gravity in the second order formalism working directly with the metric and the dilaton. We consider the theory both in Anti-de Sitter(AdS) and de Sitter space(dS) and analyze the path integral for
Autor:
Ekrem Aydiner
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-6 (2021)
Scientific Reports
Scientific Reports
In this study, we consider the non-Markovian dynamics of the generic non-equilibrium kinetic process. We summarize the generalized master equation, the continuous and discrete forms of the time-fractional diffusion equation. Using path integral formu
Publikováno v:
Shepherd, S, Lan, J, Wilkins, D M & Kapil, V 2021, ' Efficient Quantum Vibrational Spectroscopy of Water with HighOrder Path Integrals: From Bulk to Interfaces ', Journal of Physical Chemistry Letters, vol. 12, pp. 9108-9114 . https://doi.org/10.1021/acs.jpclett.1c02574
Vibrational spectroscopy is key for probing the interplay between the structure and dynamics of aqueous systems. In order to map different regions of experimental spectra to the microscopic structure of a system, it is important to combine them with
Autor:
S. Chiarelli, P. Chiarelli
Publikováno v:
European Journal of Applied Physics. 3:11-28
The paper investigates the quantum fluctuating dynamics by using the stochastic generalization of the Madelung quantum-hydrodynamic approach. By using the discrete approach, the path integral solution is derived in order to investigate how the final