Optical quantum memory for polarization qubits with V -type three-level atoms

TitleOptical quantum memory for polarization qubits with V -type three-level atoms
Publication TypeJournal Article
Year of Publication2011
AuthorsViscor, D, Ferraro, A, Loiko, YV, Corbalán, R, Mompart, J, Ahufinger, V
JournalJournal of Physics B: Atomic, Molecular and Optical Physics

We investigate an optical quantum memory scheme with V -type three-level atoms based on the controlled reversible inhomogeneous broadening technique. We theoretically show the possibility of storing and retrieving 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 analysed.

Campus d'excel·lència internacional U A B