dorsal/arxiv
View SchemaQuantum Chaos: Reduced Density Matrix Fluctuations in Coupled Systems
| Authors | Sankhasubhra Nag, Gautam Ghosh, Avijit Lahiri |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0406193 |
| URL | https://arxiv.org/abs/quant-ph/0406193 |
| DOI | 10.1016/j.physd.2005.04.008 |
Abstract
Following a recent work (briefly reviewed below) we consider temporal fluctuations in the reduced density matrix elements for a coupled system involving a pair of kicked rotors as also one made up of a pair of Harper Hamiltonians. These dynamical fluctuations are found to constitute a reliable indicator of the degree of chaos in the quantum dynamics, and are related to stationary features like the eigenvalue and eigenvector distributions of the system under consideration. A brief comparison is made with the evolution of the reduced distribution function in the classical phase space.
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"abstract": "Following a recent work (briefly reviewed below) we consider temporal\nfluctuations in the reduced density matrix elements for a coupled system\ninvolving a pair of kicked rotors as also one made up of a pair of Harper\nHamiltonians. These dynamical fluctuations are found to constitute a reliable\nindicator of the degree of chaos in the quantum dynamics, and are related to\nstationary features like the eigenvalue and eigenvector distributions of the\nsystem under consideration. A brief comparison is made with the evolution of\nthe reduced distribution function in the classical phase space.",
"arxiv_id": "quant-ph/0406193",
"authors": [
"Sankhasubhra Nag",
"Gautam Ghosh",
"Avijit Lahiri"
],
"categories": [
"quant-ph"
],
"doi": "10.1016/j.physd.2005.04.008",
"title": "Quantum Chaos: Reduced Density Matrix Fluctuations in Coupled Systems",
"url": "https://arxiv.org/abs/quant-ph/0406193"
},
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