title: Storage and retrieval of THz-bandwidth single photons using a room-temperature diamond quantum memory.
abstract: We report the storage and retrieval of single photons, via a quantum memory, in the optical phonons of a room-temperature bulk diamond. The THz-bandwidth heralded photons are generated by spontaneous parametric down-conversion and mapped to phonons via a Raman transition, stored for a variable delay, and released on demand. The second-order correlation of the memory output is g((2))(0)=0.65±0.07, demonstrating a preservation of nonclassical photon statistics throughout storage and retrieval. The memory is low noise, high speed and broadly tunable; it therefore promises to be a versatile light-matter interface for local quantum processing applications.
authors.affiliation: National Research Council of Canada, 100 Sussex Drive, Ottawa, Ontario K1A 0R6, Canada.
authors.forename: Duncan G
authors.initials: DG
authors.lastname: England
authors.affiliation: Institute for Quantum Computing and Department of Physics and Astronomy, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada.
authors.forename: Kent A G
authors.initials: KA
authors.lastname: Fisher
authors.affiliation: Institute for Quantum Computing and Department of Physics and Astronomy, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada.
authors.forename: Jean-Philippe W
authors.initials: JP
authors.lastname: MacLean
authors.affiliation: National Research Council of Canada, 100 Sussex Drive, Ottawa, Ontario K1A 0R6, Canada.
authors.forename: Philip J
authors.initials: PJ
authors.lastname: Bustard
authors.affiliation: National Research Council of Canada, 100 Sussex Drive, Ottawa, Ontario K1A 0R6, Canada.
authors.forename: Rune
authors.initials: R
authors.lastname: Lausten
authors.affiliation: Institute for Quantum Computing and Department of Physics and Astronomy, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada.
authors.forename: Kevin J
authors.initials: KJ
authors.lastname: Resch
authors.affiliation: National Research Council of Canada, 100 Sussex Drive, Ottawa, Ontario K1A 0R6, Canada.
authors.forename: Benjamin J
authors.initials: BJ
authors.lastname: Sussman