Generation of Symmetric Dicke States of Remote Qubits with Linear Optics

Journal Article · Fri Nov 09 00:00:00 EST 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.99.193602· OSTI ID:21024420

Thiel, C; Zanthier, J von ^[1]; Bastin, T ^[2]; Solano, E ^[3]; Agarwal, G S ^[4]

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1. Institut fuer Optik, Information und Photonik, Max-Planck Forschungsgruppe, Universitaet Erlangen-Nuernberg, 91058 Erlangen (Germany)
2. Institut de Physique Nucleaire, Atomique et de Spectroscopie, Universite de Liege, 4000 Liege (Belgium)
3. Physics Department, ASC, and CeNS, Ludwig-Maximilians-Universitaet, Theresienstrasse 37, 80333 Munich (Germany)
4. Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078-3072 (United States)

We propose a method for generating all symmetric Dicke states, either in the long-lived internal levels of N massive particles or in the polarization degrees of freedom of photonic qubits, using linear optical tools only. By means of a suitable multiphoton detection technique, erasing Welcher-Weg information, our proposed scheme allows the generation and measurement of an important class of entangled multiqubit states.

• OSTI ID: 21024420
• Journal Information: Physical Review Letters, Vol. 99, Issue 19; Other Information: DOI: 10.1103/PhysRevLett.99.193602; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BEAM OPTICS
DEGREES OF FREEDOM
INFORMATION THEORY
MULTI-PHOTON PROCESSES
POLARIZATION
QUANTUM ENTANGLEMENT
QUANTUM MECHANICS
QUBITS