Spontaneously Generated Atomic Entanglement in Free Space Reinforced by Incoherent Pumping

Authors

Ling Zhou
Gou Hui Yang
Anil K. Patnaik, Wright State University - Main CampusFollow

Document Type

Article

Publication Date

6-1-2009

Abstract

We study spontaneously generated entanglement (SGE) between two identical multilevel atoms in free space via vacuum-induced radiative coupling. We show that the SGE in two-atom systems may initially increase with time but eventually vanishes in the time scale determined by the excited-state lifetime and radiative coupling strength between the two atoms. We demonstrate that steady-state SGE can be established by incoherently pumping the atoms to their excited states. We have shown that an appropriate rate of incoherent pump can help in producing optimal steady-state SGE. The multilevel systems offer us more channels to establish entanglement. The system under consideration can be realized in a tight trap or atoms/ions doped in a solid substrate.

Comments

The original publication is available at http://pra.aps.org/abstract/PRA/v79/i6/e062102

Repository Citation

Zhou, L., Yang, G. H., & Patnaik, A. K. (2009). Spontaneously Generated Atomic Entanglement in Free Space Reinforced by Incoherent Pumping. Physical Review A, 79 (6), 62102.
https://corescholar.libraries.wright.edu/physics/178

DOI

10.1103/PhysRevA.79.062102