Linear optical implementation of ancilla-free 1{yields}3 optimal phase covariant quantum cloning machines for the equatorial qubits

Journal Article · Mon Aug 15 00:00:00 EDT 2005 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.72.022306· OSTI ID:20718065

Xubo, Zou; Mathis, W ^[1]

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

We propose experimental schemes to implement ancilla-free 1{yields}3 optimal phase covariant quantum cloning machines for x-y and x-z equatorial qubits by interfering a polarized photon, which we wish to clone, with different light resources at a six-port symmetric beam splitter. The scheme requires linear optical elements and three-photon coincidence detection, and is feasible with current experimental technology.

• OSTI ID: 20718065
• Journal Information: Physical Review. A, Vol. 72, Issue 2; Other Information: DOI: 10.1103/PhysRevA.72.022306; (c) 2005 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
BEAM SPLITTING
DETECTION
IMPLEMENTATION
INFORMATION THEORY
OPTICS
PHOTONS
QUANTUM COMPUTERS
QUANTUM MECHANICS
QUBITS
VISIBLE RADIATION