| Issue |
EPL
Volume 125, Number 6, March 2019
|
|
|---|---|---|
| Article Number | 60005 | |
| Number of page(s) | 7 | |
| Section | General | |
| DOI | https://doi.org/10.1209/0295-5075/125/60005 | |
| Published online | 02 May 2019 | |
Recurrence network analysis in a model tripartite quantum system
Department of Physics, IIT Madras - Chennai 600036, India
Received: 7 January 2019
Accepted: 25 March 2019
In a novel approach to quantum dynamics, we apply the tools of the recurrence network analysis to the dynamics of the quantum-mechanical expectation values of observables. We construct and analyse ϵ-recurrence networks from the time-series data of the mean photon number in a model tripartite quantum system governed by a nonlinear Hamiltonian. The role played by the intensity-dependent field-atom coupling in the dynamics is investigated. Interesting features emerge as a function of a parameter characterising this intensity-dependent coupling in both the short-time and the long-time dynamics. In particular, we examine the manner in which standard measures of the network theory such as the average path length, the link density and the clustering coefficient, depend on this parameter.
PACS: 05.45.Tp – Time series analysis / 42.50.-p – Quantum optics / 05.45.-a – Nonlinear dynamics and chaos
© EPLA, 2019
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