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Q: Fachverband Quantenoptik und Photonik
Q 60: Quantum effects: Entanglement and decoherence I
Q 60.4: Talk
Friday, March 22, 2013, 12:00–12:15, A 310
Quantum trajectory description of entanglement dynamics — •Ivonne Guevara1,2 and Carlos Viviescas1 — 1Departamento de Física, Universidad Nacional de Colombia, Carrera 30 No.45-03, Bogotá D.C., Colombia — 2Centre for Quantum Dynamics, Griffith University, Brisbane, Queensland 4111, Australia
We present and overview of the characterization of the dynamical evolution of entanglement in open quantum system by means of diffusive quantum trajectories. We show how this method allows for a complete description of this phenomenon providing deterministic evolution equations for some experimentally relevant cases, and excellent upper bounds for the entanglement dynamics in some other cases. Remarkably, for a family of entanglement measures, all the information of the entanglement dynamics can be recovered from a single trajectory. For some of the cases considered we propose quantum optical experimental setups which allow for a real time measurement of the entanglement time evolution.