6533b7d5fe1ef96bd1265289

RESEARCH PRODUCT

Asymptotic entanglement of two atoms in a squeezed light field

Mariusz ŻAbaLech JakóbczykRobert Olkiewicz

subject

Condensed Matter::Quantum GasesPhysicsQuantum opticsQuantum PhysicsQuantum decoherenceField (physics)Thermal reservoirFOS: Physical sciencesConcurrenceQuantum PhysicsQuantum entanglementSquashed entanglementAtomic and Molecular Physics and OpticsQuantum mechanicsPhysics::Atomic PhysicsAtomic physicsQuantum Physics (quant-ph)Squeezed coherent state

description

The dynamics of entanglement between two - level atoms interacting with a common squeezed reservoir is investigated. It is shown that for spatially separated atoms there is a unique asymptotic state depending on the distance between the atoms and the atom - photons detuning. In the regime of strong correlations there is a one - parameter family of asymptotic steady - states depending on initial conditions. In contrast to the thermal reservoir both types of asymptotic states can be entangled. We calculate the amount of entanglement in the system in terms of concurrence.

https://doi.org/10.1103/physreva.83.062322