Heralded generation of Bell states using atomic ensembles

Abstract

We propose a scheme that utilizes the collective enhancement of a photonic mode inside an atomic ensemble together with a proper Zeeman manifold in order to achieve a heralded polarization entangled Bell state. The entanglement is between two photons that are separated in time and can be used as a post selected deterministic source for applications such as quantum repeaters where a subsequent entanglement swapping measurement is employed. We present a detailed analysis of the practical limitation of the scheme.

6 pages, 5 figures

References in corpus (5)

• Entangled Photon Pairs from Semiconductor Quantum Dots
• Mapping photonic entanglement into and out of a quantum memory
• A millisecond quantum memory for scalable quantum networks
• Narrow Band Source of Transform-Limited Photon Pairs via Four-Wave Mixing in a Cold Atomic Ensemble
• Collective generation of quantum states of light by entangled atoms

Cited by in corpus (5)

• Steady Bell state generation via magnon-photon coupling
• Heralded atomic nonadiabatic holonomic quantum computation with Rydberg blockade
• Quantum network of neutral atom clocks
• Long-time Bell states of waveguide-mediated qubits via continuous measurement
• Precision measurement for open systems by non-hermitian linear response