Temporal compression of quantum-information-carrying photons using a photon-echo quantum memory approach

Journal Article · Thu Jul 15 04:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.82.012309· OSTI ID:21442887

Moiseev, S A; Tittel, W ^[1]

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1. Institute for Quantum Information Science, and Department of Physics and Astronomy, University of Calgary, Canada and Kazan Physical-Technical Institute of the Russian Academy of Sciences (Russian Federation)

We study quantum compression and decompression of light pulses that carry quantum information using a photon-echo quantum memory technique with controllable inhomogeneous broadening of an isolated atomic absorption line. We investigate media with differently broadened absorption profiles, transverse and longitudinal, finding that the recall efficiency can be as large as unity and that the quantum information encoded into the photonic qubits can remain unperturbed. Our results provide insight into reversible light-atom interaction and are interesting in view of future quantum communication networks, where pulse compression and decompression may play an important role in increasing the qubit rate or in mapping quantum information from photonic carriers with large optical bandwidth into atomic memories with smaller bandwidth.

• OSTI ID: 21442887
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 1 Vol. 82; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION
ATOM COLLISIONS
ATOMS
BOSONS
COLLISIONS
COMMUNICATIONS
COMPRESSION
DATA TRANSMISSION
EFFICIENCY
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
INFORMATION
MASSLESS PARTICLES
MECHANICS
PHOTON COLLISIONS
PHOTON-ATOM COLLISIONS
PHOTONS
PULSES
QUANTUM INFORMATION
QUANTUM MECHANICS
QUANTUM STATES
QUBITS
RADIATIONS
SORPTION
VISIBLE RADIATION