Quantum-state storage and processing for polarization qubits in an inhomogeneously broadened {Lambda}-type three-level medium

Journal Article · Sat Oct 15 00:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.84.042314· OSTI ID:22080354

Viscor, D; Ferraro, A; Mompart, J; Ahufinger, V ^[1]; Loiko, Yu ^[1]

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1. Departament de Fisica, Universitat Autonoma de Barcelona, E-08193 Bellaterra (Spain)

We address the propagation of a single-photon pulse with two polarization components, i.e., a polarization qubit, in an inhomogeneously broadened ''phaseonium''{Lambda}-type three-level medium. We combine some of the nontrivial propagation effects characteristic for this kind of coherently prepared systems and the controlled reversible inhomogeneous broadening technique to propose several quantum information-processing applications, such as a protocol for polarization qubit filtering and sieving as well as a tunable polarization beam splitter. Moreover, we show that by imposing a spatial variation of the atomic coherence phase, an efficient quantum memory for the incident polarization qubit can be also implemented in {Lambda}-type three-level systems.

• OSTI ID: 22080354
• Journal Information: Physical Review. A, Vol. 84, Issue 4; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BEAM SPLITTING
DATA PROCESSING
PHOTONS
POLARIZATION
PULSES
QUANTUM STATES
QUBITS