Dynamical complexity in the quantum to classical transition

We study the dynamical complexity of an open quantum driven double-well oscillator, mapping its dependence on effective Planck's constant \(\hbar_{eff}\equiv\beta\) and coupling to the environment, \(\Gamma\). We study this using stochastic Schrodinger equations, semiclassical equations, and th...

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Bibliographic Details
Published in:arXiv.org 2016-04
Main Authors: Pokharel, Bibek, Duggins, Peter, Misplon, Moses, Walter, Lynn, Hallman, Kevin, Anderson, Dustin, Kapulkin, Arie, Pattanayak, Arjendu K
Format: Article
Language:English
Subjects:
Chaos theory
Complexity
Dependence
Hilbert space
Mapping
Mathematical analysis
Plancks constant
Quantum theory
Schrodinger equation
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Summary:We study the dynamical complexity of an open quantum driven double-well oscillator, mapping its dependence on effective Planck's constant \(\hbar_{eff}\equiv\beta\) and coupling to the environment, \(\Gamma\). We study this using stochastic Schrodinger equations, semiclassical equations, and the classical limit equation. We show that (i) the dynamical complexity initially increases with effective Hilbert space size (as \(\beta\) decreases) such that the most quantum systems are the least dynamically complex. (ii) If the classical limit is chaotic, that is the most dynamically complex (iii) if the classical limit is regular, there is always a quantum system more dynamically complex than the classical system. There are several parameter regimes where the quantum system is chaotic even though the classical limit is not. While some of the quantum chaotic attractors are of the same family as the classical limiting attractors, we also find a quantum attractor with no classical counterpart. These phenomena occur in experimentally accessible regimes.
ISSN:2331-8422