Towards experimental entanglement connection with atomic ensembles in the single excitation regime
Open Access
- 1 June 2007
- journal article
- Published by IOP Publishing in New Journal of Physics
- Vol. 9 (6) , 207
- https://doi.org/10.1088/1367-2630/9/6/207
Abstract
We present a protocol for performing entanglement connection between pairs of atomic ensembles in the single excitation regime. Two pairs are prepared in an asynchronous fashion and then connected via a Bell measurement. The resulting state of the two remaining ensembles is mapped to photonic modes and a reduced density matrix is then reconstructed. Our observations confirm for the first time the creation of coherence between atomic systems that never interacted, a first step towards entanglement connection, a critical requirement for quantum networking and long distance quantum communications.Keywords
All Related Versions
This publication has 18 references indexed in Scilit:
- Measurement-induced entanglement for excitation stored in remote atomic ensemblesNature, 2005
- Quantum information processing and communicationThe European Physical Journal D, 2005
- High-Fidelity Teleportation beyond the No-Cloning Limit and Entanglement Swapping for Continuous VariablesPhysical Review Letters, 2005
- Experimental Demonstration of Unconditional Entanglement Swapping for Continuous VariablesPhysical Review Letters, 2004
- Three-dimensional theory for interaction between atomic ensembles and free-space lightPhysical Review A, 2002
- Long-distance quantum communication with atomic ensembles and linear opticsNature, 2001
- Experimental long-lived entanglement of two macroscopic objectsNature, 2001
- Quantum Repeaters: The Role of Imperfect Local Operations in Quantum CommunicationPhysical Review Letters, 1998
- Deterministic Entanglement of Two Trapped IonsPhysical Review Letters, 1998
- Experimental Entanglement Swapping: Entangling Photons That Never InteractedPhysical Review Letters, 1998