2004/03/17 by Yuan Liang Lim, Almut Beige
Computer Science · Physics and Astronomy · #Beam splitter #Bell state #Laser #Open quantum system #Photon #Photon entanglement #Physics #Quantum #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum cryptography #Quantum entanglement #Quantum imaging #Quantum information #Quantum mechanics #Quantum network #Quantum optics #Quantum optics and atomic interactions #Quantum sensor #Quantum technology #Quantum teleportation #W state #quant-ph
paper · pdf · doi:10.1117/12.540981
published as Proc. SPIE 5436, 118 (2004). · 9 pages, 4 figures, proceedings for the conference ``Quantum Information and Computation II'' in Orlando, April 2004
arxiv created 2004/03/17 · openalex publication_date 2004/08/24 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Photon entanglement is an essential ingredient for linear optics quantum computing schemes, quantum cryptographic protocols and fundamental tests of quantum mechanics. Here we describe a setup that allows for the generation of polarisation-entangled N-photon states on demand. The photons are obtained by mapping the entangled state of N atoms, each of them trapped inside an optical cavity, onto the free radiation field. The required initial state can be prepared by performing postselective measurements on the collective emission from the cavities through a multiport beamsplitter.