We investigate an optical quantum memory scheme with V-type three-level atoms based on the controlled reversible inhomogeneous broadening (CRIB) technique. We theoretically show the possibility to store and retrieve a weak light pulse interacting with the two optical transitions of the system. This scheme implements a quantum memory for a polarization qubit - a single photon in an arbitrary polarization state - without the need of two spatially separated two-level media, thus offering the advantage of experimental compactness overcoming the limitations due to mismatching and unequal efficiencies that can arise in spatially separated memories. The effects of a relative phase change between the atomic levels, as well as of phase noise due to, for example, the presence of spurious electric and magnetic fields are analyzed.
|Journal||Journal of Physics B: Atomic Molecular and Optical Physics|
|Publication status||Published - 2011|
Viscor, D., Ferraro, A., Loiko, Y., Corbalán, R., Mompart, J., & Ahufinger, V. (2011). Optical quantum memory for polarization qubits with V-type three-level atoms. Journal of Physics B: Atomic Molecular and Optical Physics. https://doi.org/10.1088/0953-4075/44/19/195504