Quantum teleportation of light beams

Journal Article · Sat Mar 01 04:00:00 EST 2003 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.67.033802· OSTI ID:20633878

Zhang, T C; Goh, K W; Chou, C W; Lodahl, P; Kimble, H J ^[1]

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1. Norman Bridge Laboratory of Physics 12-33, California Institute of Technology, Pasadena, California 91125 (United States)

We experimentally demonstrate quantum teleportation for continuous variables using squeezed-state entanglement. The teleportation fidelity for a real experimental system is calculated explicitly, including relevant imperfection factors such as propagation losses, detection inefficiencies, and phase fluctuations. The inferred fidelity for input coherent states is F=0.61{+-}0.02, which when corrected for the efficiency of detection by the output observer, gives a fidelity of 0.62. By contrast, the projected result based on the independently measured entanglement and efficiencies is 0.69. The teleportation protocol is explained in detail, including a discussion on discrepancy between experiment and theory, as well as on the limitations of the current apparatus.

• OSTI ID: 20633878
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 3 Vol. 67; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ANNIHILATION OPERATORS
CORRELATIONS
DATA TRANSMISSION
DETECTION
EFFICIENCY
EIGENSTATES
ENERGY LEVELS
FLUCTUATIONS
INFORMATION THEORY
OPTICS
PHOTON BEAMS
QUANTUM MECHANICS
VISIBLE RADIATION