Pseudo-Hermitian representation of quantum mechanics

A Mostafazadeh - International Journal of Geometric Methods in …, 2010‏ - World Scientific
A diagonalizable non-Hermitian Hamiltonian having a real spectrum may be used to define
a unitary quantum system, if one modifies the inner product of the Hilbert space properly. We …

Atom–surface diffraction: a trajectory description

R Guantes, AS Sanz, J Margalef-Roig… - Surface science …, 2004‏ - Elsevier
Elastic atom–surface scattering is a complex, non-linear dynamical process. In this work, a
description of the underlying dynamics in terms of classical and quantum trajectories is …

[کتاب][B] A concise treatise on quantum mechanics in phase space

TL Curtright, DB Fairlie, CK Zachos - 2013‏ - books.google.com
This is a text on quantum mechanics formulated simultaneously in terms of position and
momentum, ie in phase space. It is written at an introductory level, drawing on the …

Semiclassical approximations in phase space withcoherent states

M Baranger, MAM de Aguiar, F Keck… - Journal of Physics A …, 2001‏ - iopscience.iop.org
We present a complete derivation of the semiclassical limit of the coherent-state propagator
in one dimension, starting from path integrals in phase space. We show that the arbitrariness …

On complexified mechanics and coquaternions

DC Brody, EM Graefe - Journal of Physics A: Mathematical and …, 2011‏ - iopscience.iop.org
While real Hamiltonian mechanics and Hermitian quantum mechanics can both be cast in
the framework of complex canonical equations, their complex generalizations have hitherto …

A novel algebraic approach for the Schrödinger equation in split quaternionic mechanics

Z Guo, T Jiang, VI Vasil'ev, G Wang - Applied Mathematics Letters, 2023‏ - Elsevier
In the theoretical exploration and numerical computation of split quaternionic quantum
mechanics, an important goal is to solve the Schrödinger equation∂∂ t| f>=− A| f> with A an …

Classical limit of non-Hermitian quantum dynamics—a generalized canonical structure

EM Graefe, M Höning, HJ Korsch - Journal of Physics A …, 2010‏ - iopscience.iop.org
We investigate the classical limit of non-Hermitian quantum dynamics arising from a
coherent state approximation, and show that the resulting classical phase space dynamics …

Biorthogonal quantum systems

T Curtright, L Mezincescu - Journal of Mathematical Physics, 2007‏ - pubs.aip.org
Models of PT symmetric quantum mechanics provide examples of biorthogonal quantum
systems. The latter incorporate all the structure of PT symmetric models, and allow for …

From the coherent state path integral to a semiclassical initial value representation of the quantum mechanical propagator

F Grossmann, AL Xavier Jr - Physics Letters A, 1998‏ - Elsevier
We give a derivation of the semiclassical propagator of Herman and Kluk (HK) which is
based on the coherent state path integral technique. Our procedure unveils how the …

Phase-space approach to the tunnel effect: A new semiclassical traversal time

AL Xavier Jr, MAM De Aguiar - Physical Review Letters, 1997‏ - APS
We determine the semiclassical coherent-state propagator for a particle going through one-
dimensional evolution in a simple barrier potential. The described semiclassical method …