Physics – Quantum Physics
Scientific paper
2011-09-23
Phys. Rev. A 84, 042314 (2011)
Physics
Quantum Physics
9 pages, 4 figures
Scientific paper
10.1103/PhysRevA.84.042314
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 non-trivial 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 effcient quantum memory for the incident polarization qubit can be also implemented in \Lambda-type three-level systems.
Ahufinger Veronica
Ferraro Alessandro
Loiko Yu.
Mompart Jordi
Viscor D.
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