Pseudo-invariants theory and real phases for systems with non-Hermitian time-dependent Hamiltonians

M Maamache, O Kaltoum Djeghiour, N Mana… - The European Physical …, 2017 - Springer
In this paper, the Lewis-Riesenfeld invariant theory is generalized for the study of systems
with non-Hermitian time-dependent Hamiltonians. Explicitly time-dependent pseudo …

Time-dependent -symmetric quantum mechanics in generic non-Hermitian systems

DJ Zhang, Q Wang, J Gong - Physical Review A, 2019 - APS
A conceptual framework extending (time-independent) PT-symmetric quantum mechanics
into the time-dependent domain is presented. It is built upon a nontrivial time-dependent …

Composite quantum Coriolis forces

M Znojil - Mathematics, 2023 - mdpi.com
In a consistent quantum theory known as “non-Hermitian interaction picture”(NIP), the
standard quantum Coriolis operator Σ (t) emerges whenever the observables of a unitary …

Exact solutions for time-dependent non-Hermitian oscillators: Classical and quantum pictures

K Zelaya, O Rosas-Ortiz - Quantum Reports, 2021 - mdpi.com
We associate the stationary harmonic oscillator with time-dependent systems exhibiting non-
Hermiticity by means of point transformations. The new systems are exactly solvable, with all …

PT-symmetry effects in measurement-based quantum thermal machines

JFG Santos, P Chattopadhyay - Physica A: Statistical Mechanics and its …, 2023 - Elsevier
Measurement-based quantum thermal machines are fascinating models of thermodynamic
cycles where measurement protocols play an important role in the performance and …

Wheeler-DeWitt equation and the applicability of crypto-Hermitian interaction representation in quantum cosmology

M Znojil - Universe, 2022 - mdpi.com
In the broader methodical framework of the quantization of gravity, the crypto-Hermitian (or
non-Hermitian) version of Dirac's interaction picture is considered. The formalism is briefly …

Quasi-Hermitian formulation of quantum mechanics using two conjugate Schroedinger equations

M Znojil - Axioms, 2023 - mdpi.com
To the existing list of alternative formulations of quantum mechanics, a new version of the
non-Hermitian interaction picture is added. What is new is that, in contrast to the more …

The pseudo Hermitian invariant operator and time-dependent non-Hermitian Hamiltonian exhibiting a SU (1, 1) and SU (2) dynamical symmetry

W Koussa, N Mana, OK Djeghiour… - Journal of Mathematical …, 2018 - pubs.aip.org
We study the time evolution of quantum systems with a time-dependent non-Hermitian
Hamiltonian exhibiting a SU (1, 1) and SU (2) dynamical symmetry. With a time-dependent …

Unitary evolution for a two-level quantum system in fractional-time scenario

D Cius, L Menon Jr, MAF Dos Santos, ASM de Castro… - Physical Review E, 2022 - APS
The time-evolution operator obtained from the fractional-time Schrödinger equation (FTSE)
is said to be nonunitary since it does not preserve the norm of the vector state in time. As …

Non-stationary non-Hermitian “wrong-sign” quantum oscillators and their meaningful physical interpretation

M Znojil - Entropy, 2023 - mdpi.com
In the framework of quantum mechanics using quasi-Hermitian operators the standard
unitary evolution of a non-stationary but still closed quantum system is only properly …