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.
|Journal||Physical Review A (Atomic, Molecular, and Optical Physics)|
|Publication status||Published - 2011|
Viscor, D., Ferraro, A., Loiko, Y., Mompart, J., & Ahufinger, V. (2011). Quantum state storage and processing for polarization qubits in an inhomogeneously broadened Λ-type three-level medium. Physical Review A (Atomic, Molecular, and Optical Physics), 84, . https://doi.org/10.1103/PhysRevA.84.042314