Linear optical implementation of a single-mode quantum filter and generation of multiphoton polarization entangled states

Journal Article · Sun Dec 01 00:00:00 EST 2002 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.66.064302· OSTI ID:20632499

Xubo, Zou; Pahlke, K; Mathis, W ^[1]

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1. Electromagnetic Theory Group at THT, Department of Electrical Engineering, University of Hannover (Germany)

We propose a scheme to implement a single-mode quantum filter, which selectively eliminates the one-photon state in a quantum state {alpha} vertical bar 0>+{beta} vertical bar 1>+{gamma} vertical bar 2>. The vacuum state and the two-photon state are transmitted without any change. This scheme requires single-photon sources, linear optical elements, and photon detectors. Furthermore, we demonstrate how this filter can be used to realize a two-qubit projective measurement and to generate multiphoton polarization entangled states.

• OSTI ID: 20632499
• Journal Information: Physical Review. A, Vol. 66, Issue 6; Other Information: DOI: 10.1103/PhysRevA.66.064302; (c) 2002 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
CORRELATIONS
ENERGY LEVELS
FILTERS
IMPLEMENTATION
MULTI-PHOTON PROCESSES
OPTICS
PHOTONS
POLARIZATION
QUANTUM MECHANICS
VACUUM STATES
VISIBLE RADIATION