title: Atomic vapor quantum memory for a photonic polarization qubit.
abstract: We report an experimental realization of an atomic vapor quantum memory for the photonic polarization qubit. The performance of the quantum memory for the polarization qubit, realized with electromagnetically-induced transparency in two spatially separated ensembles of warm Rubidium atoms in a single vapor cell, has been characterized with quantum process tomography. The process fidelity better than 0.91 for up to 16 μs of storage time has been achieved.
authors.affiliation: Department of Physics, Pohang University of Science and Technology, Pohang, 790-784, Korea.
authors.forename: Young-Wook
authors.initials: YW
authors.lastname: Cho
authors.forename: Yoon-Ho
authors.initials: YH
authors.lastname: Kim
mesh_terms: D016248:Computer Storage Devices; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005740:Gases / Q000737:chemistry; D055096:Optical Devices; D017785:Photons; D011789:Quantum Theory; D012413:Rubidium / Q000737:chemistry*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*
chemical_list: D005740:Gases; D012413:Rubidium