Entanglement detection for bipartite systems with continuous variables in non-Markovian baths

Journal Article · Tue Mar 15 00:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.032316· OSTI ID:21537411

Hongguang, Duan; Xianting, Liang ^[1]

---

1. Department of Physics and Institute of Modern Physics, Ningbo University, Ningbo 315211 (China)

By using the dynamics described with the quantum Langevin equation and the inseparability criterion for continuous-variable systems [L.-M. Duan, G. Giedke, J. I. Cirac, and P. Zoller, Phys. Rev. Lett. 84, 2722 (2000).], we discuss a method to judge whether entanglement exists in the evolutions of bipartite systems with continuous variables in their baths. By using this method we investigate a nontrivial example, namely, we judge when the entanglement exists in the evolution of the two coupled anharmonic oscillators in their environments.

• OSTI ID: 21537411
• Journal Information: Physical Review. A, Vol. 83, Issue 3; Other Information: DOI: 10.1103/PhysRevA.83.032316; (c) 2011 American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANHARMONIC OSCILLATORS
DETECTION
LANGEVIN EQUATION
MARKOV PROCESS
MATHEMATICAL EVOLUTION
QUANTUM ENTANGLEMENT
EQUATIONS
EVOLUTION
STOCHASTIC PROCESSES