2008/02/07 by F. C. Lourenco, F. C. Lourenço, A. Vidiella-Barranco
Computer Science · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Field (mathematics) #Lambda #Mode (computer interface) #Quantum #Quantum Information and Cryptography #Quantum entanglement #Quantum optics and atomic interactions #Scheme (mathematics) #Set (abstract data type) #W state #physics.atom-ph #physics.optics #quant-ph
paper · pdf · doi:10.1140/epjd/e2008-00019-1
published as Eur. Phys. J. D, 47, 127 (2008)
openalex publication_date 2008/02/07 · arxiv created 2008/03/19 · openalex created_date 2016/06/24 · arxiv updated 2021/04/06 · openalex updated_date 2026/08/05
We propose a scheme in which entanglement can be transferred from atoms (discrete variables) to entangled states of cavity fields (continuous variables). The cavities play the role of a kind of quantum memory for entanglement, in such a way that it is possible to retrieve it back to the atoms. In our method, two three level atoms in a lambda configuration, previously entangled, are set to interact with single mode cavity fields prepared in coherent states. During the process, one e-bit of entanglement may be deposited in the cavities in an efficient way. We also show that the stored entanglement may be transferred back to flying atoms.