Description

Day: 2009/05/06

Place: Sala de Seminarios del Departamento de Física Teórica e Historia de la Ciencia
Time: 12h.
Title: Sudden death and sudden birth of entanglement
Abstract
We consider entangled two photon mode states under the action of dissipation. We describe the process of entanglement transference to reservoir degrees of freedom and characterize the time where disentaglement takes place vs the time where birth of entanglement takes place. In addition we consider the evolution of a class of entangled coherent states of two quantized fields under dissipation. Under certain conditions the dynamics may be studied in a finite dimensional time dependent orthogonal basis. Asymptotic decays as well as finite time disentanglement can be found depending on the initial condition and phase space distances among the components of each mode.