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

TitleQuantum-state storage and processing for polarization qubits in an inhomogeneously broadened Λ-type three-level medium
Publication TypeJournal Article
Year of Publication2011
AuthorsViscor, D, Ferraro, A, Loiko, YV, Mompart, J, Ahufinger, V
JournalPhys. Rev. A
Volume84
Pagination042314
Date PublishedOct
Abstract

We address the propagation of a single-photon pulse with two polarization components, i.e., a polarization qubit, in an inhomogeneously broadened “phaseonium” Λ-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 Λ-type three-level systems.

URLhttp://link.aps.org/doi/10.1103/PhysRevA.84.042314
DOI10.1103/PhysRevA.84.042314
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