Entanglement accumulation, retrieval, and concentration in cavity QED

2009/06/02 by Daniel Ballester, D. Ballester · 1 citation
Computer Science · Physics and Astronomy · #Environmental science #Physics #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum electrodynamics #Quantum entanglement #Quantum mechanics #Statistical physics #quant-ph

paper · pdf · doi:10.1103/physreva.79.062317

8 pages, 5 figs, 2 tables. To appear in PRA

arxiv created 2009/06/02 · openalex publication_date 2009/06/17 · arxiv updated 2015/05/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

The ability to accumulate and retrieve entanglement in the fields of two remote cavities with pairs of two-level atoms is discussed. It is shown that this transfer and retrieval can be indeed ideal with a resonant interaction. The case of initial nonmaximally entangled atomic pairs is also considered. This leads to the possibility of concentrating entanglement into a single pair at the retrieval stage. A teleportation protocol based on the same setup is presented. This allows us to achieve teleportation with built-in entanglement concentration.

Citations

• Comparison of quantum and semiclassical radiation theories with application to the beam maser
• Teleporting an unknown quantum state via dual classical and Einstein-Podolsky-Rosen channels
• Can Quantum-Mechanical Description of Physical Reality Be Considered Complete?
• Creation of entangled states of distant atoms by interference
• Manipulating quantum entanglement with atoms and photons in a cavity
• Cavity quantum electrodynamics for superconducting electrical circuits: An architecture for quantum computation
• Strong coupling of a single photon to a superconducting qubit using circuit quantum electrodynamics
• Reconstruction of non-classical cavity field states with snapshots of their decoherence
• Long-distance quantum communication with atomic ensembles and linear optics

Cited by

• Passing quantum correlations to qubits using any two-mode state