Statistics of phase space localization measures and quantum chaos in the kicked top model

Q Wang, M Robnik - Physical Review E, 2023 - APS
Quantum chaos plays a significant role in understanding several important questions of
recent theoretical and experimental studies. Here, by focusing on the localization properties …

Sensitivity of wave field evolution and manifold stability in chaotic systems

NR Cerruti, S Tomsovic - Physical review letters, 2002 - APS
The sensitivity of a wave field's evolution to small perturbations is of fundamental interest.
For chaotic systems, there are two distinct regimes of either exponential or Gaussian overlap …

Quantum-to-Classical Coexistence: Wavefunction Decay Kinetics, Photon Entanglement, and Q-Bits

P Chiarelli - Symmetry, 2023 - mdpi.com
By utilizing a generalized version of the Madelung quantum hydrodynamic framework that
incorporates noise, we derive a solution using the path integral method to investigate how a …

Entanglement sharing in one-particle states

A Lakshminarayan, V Subrahmanyam - Physical Review A, 2003 - APS
Entanglement sharing among sites of one-particle states is considered using the measure of
concurrence. These are the simplest in a hierarchy of number-specific states of many qubits …

Can fluctuating quantum states acquire the classical behavior on large scale?

P Chiarelli - arxiv preprint arxiv:1107.4198, 2011 - arxiv.org
The quantum hydrodynamic analogy (QHA) equivalent to the Schrodinger equation is
generalized to its stochastic version by a systematic technique. On large scale, the quantum …

Intramolecular vibrational energy redistribution in DCO (X [combining tilde] 2 A′): Classical-quantum correspondence, dynamical assignments of highly excited states …

A Semparithi, S Keshavamurthy - Physical Chemistry Chemical …, 2003 - pubs.rsc.org
Intramolecular dynamics of highly excited DCO (2A′) is studied from a classical-quantum
correspondence perspective using the effective spectroscopic Hamiltonian proposed …

A uniform approximation for the fidelity in chaotic systems

NR Cerruti, S Tomsovic - Journal of Physics A: Mathematical and …, 2003 - iopscience.iop.org
In quantum/wave systems with chaotic classical analogues, wavefunctions evolve in highly
complex, yet deterministic ways. A slight perturbation of the system, though, will cause the …

Stochastic quantum hydrodynamic model from the dark matter of vacuum fluctuations: The Langevin-Schr\" odinger equation and the large-scale classical limit

S Chiarelli, P Chiarelli - arxiv preprint arxiv:2008.00796, 2020 - arxiv.org
The work derives the quantum evolution in a fluctuating vacuum by introducing the related
(dark) mass density noise into the Madelung quantum hydrodynamic model. The paper …

[PDF][PDF] Stability of quantum eigenstates and collapse of superposition of states in a fluctuating environment: The Madelung hydrodynamic approach

P Chiarelli, S Chiarelli - Eur. J. Appl. Phys, 2021 - researchgate.net
The paper investigates the quantum fluctuating dynamics by using the stochastic
generalization of the Madelung quantum-hydrodynamic approach. By using the discrete …

[PDF][PDF] The classical mechanics from the quantum equation

P Chiarelli - Phys. Rew. & Res. Int, 2013 - academia.edu
This work shows that the stochastic generalization of the quantum hydrodynamic analogy
(QHA) has its corresponding stochastic Schrödinger equation (SSE) as similarly happens for …