Results 171 to 180 of about 1,825,425 (354)

Assessing and rationalizing the performance of Hessian update schemes for reaction path Hamiltonian rate calculations [PDF]

, 2021
Raphael Chantreau Majerus, Christopher Robertson, Scott Habershon   +2 more
openalex   +1 more source

Recursive Relations for the S‐matrix of Liouville Theory

Fortschritte der Physik, EarlyView.
Abstract The relation between the vertex operators of the in and out fields in Liouville theory is analyzed. This is used to derive equations for the S‐matrix, from which a recursive relation for the normal symbol of the S‐matrix for discrete center‐of‐mass momenta is obtained.
George Jorjadze, Lado Razmadze, Stefan Theisen   +2 more
wiley   +1 more source

Relational Bundle Geometric Formulation of Non‐Relativistic Quantum Mechanics

Fortschritte der Physik, EarlyView.
Abstract A bundle geometric formulation of non‐relativistic many‐particles Quantum Mechanics is presented. A wave function is seen to be a C$\mathbb {C}$‐valued cocyclic tensorial 0‐form on configuration space‐time seen as a principal bundle, while the Schrödinger equation flows from its covariant derivative, with the action functional supplying a ...
J. T. François, L. Ravera
wiley   +1 more source

An extension of the method of characteristic to a system of Partial Differential Operators-- an application to the Weyl equation with external field by "Super Hamiltonian path-integral method"

, 2002
Atsushi Inoue
openalex   +2 more sources

Energy Profile and Hopping Barriers for Small Electron Polarons at Ferroelectric Domain Walls in Bismuth Ferrite from First Principles

physica status solidi (b), EarlyView.
An electron polaron in bismuth ferrite needs to overcome an energy barrier to hop from initial iron site Fe1 to final iron site Fe2. Here, this energy barrier was determined ab initio for hops in perfect bismuth ferrite and at neutral ferroelectric domain walls.
Sabine Körbel
wiley   +1 more source

Effects of Galactic Irradiation on Thermal and Electronic Transport in Tungsten

physica status solidi (b), EarlyView.
This atomic‐scale study reveals how low‐to‐mid‐energy space irradiation alters tungsten's thermal and electronic behavior, even at low defect levels. Focusing on vacancy sites in bulk and near grain boundaries, it employs two novel approaches: site‐projected thermal conductivity and the N2$^{2}$ method for the thermal and electronic response analysis ...
Chinonso Ugwumadu, David A. Drabold, Roxanne M. Tutchton   +2 more
wiley   +1 more source

Does a Functional Integral Really Need a Lagrangian?

Acta Polytechnica, 2010
Path integral formulation of quantum mechanics (and also other equivalent formulations) depends on a Lagrangian and/or Hamiltonian function that is chosen to describe the underlying classical system.
D. Kochan
doaj  

Construction of spectral invariants of Hamiltonian paths on closed symplectic manifolds

, 2004
Yong‐Geun Oh
openalex   +2 more sources

Path integral and effective Hamiltonian in loop quantum cosmology [PDF]

, 2013
Qin Li, Haiyun Huang, Yongge Ma
openalex   +1 more source

Fully Quantum Perturbative Description of Correlated Stokes–Anti‐Stokes Scattering

physica status solidi (b), EarlyView.
The generation of Stokes‐anti‐Stokes (SaS) photon pairs with quantum correlations, like entanglement, has been developing recently, but a proper theoretical ground was missing. A fully quantum perturbative theory is provided to describe the four‐wave mixing contribution to the correlated SaS scattering, in which both matter and electromagnetic field ...
Raul Corrêa, Marcelo F. Santos, Carlos H. Monken, Ado Jorio   +3 more
wiley   +1 more source