Search Results - "Longdell, J. J."

Dynamic decoherence control of a solid-state nuclear-quadrupole qubit by FRAVAL, E, SELLARS, M. J, LONGDELL, J. J

“…We report on the application of a dynamic decoherence control pulse sequence on a nuclear-quadrupole transition in Pr3+:Y(2)SiO(5). Process tomography is used…”
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Photon echoes produced by switching electric fields by Alexander, A L, Longdell, J J, Sellars, M J, Manson, N B

“…We demonstrate photon echoes in Eu3+:Y2SiO5 by controlling the inhomogeneous broadening of the Eu3+ 7F0<-->5D0 optical transition. This transition has a linear…”
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Stopped light with storage times greater than one second using electromagnetically induced transparency in a solid by LONGDELL, J. J, FRAVAL, E, SELLARS, M. J, MANSON, N. B

“…We report on the demonstration of light storage for times greater than a second in praseodymium doped Y2SiO5 using electromagnetically induced transparency…”
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Multimodal properties and dynamics of gradient echo quantum memory by Hétet, G, Longdell, J J, Sellars, M J, Lam, P K, Buchler, B C

“…We investigate the properties of a recently proposed gradient echo memory (GEM) scheme for information mapping between optical and atomic systems. We show that…”
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Electro-optic quantum memory for light using two-level atoms by Hétet, G, Longdell, J J, Alexander, A L, Lam, P K, Sellars, M J

“…We present a simple quantum memory scheme that allows for the storage of a light field in an ensemble of two-level atoms. The technique is analogous to the NMR…”
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Extending Phenomenological Crystal-Field Methods to C1 Point-Group Symmetry: Characterization of the Optically Excited Hyperfine Structure of Er1673+:Y2SiO5 by Horvath, S P, Rakonjac, J V, Chen, Y-H, Longdell, J Longdell, Goldner, P, Wells, J-P R, Reid, M F

“…We show that crystal-field calculations for C1 point-group symmetry are possible, and that such calculations can be performed with sufficient accuracy to have…”
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Characterization of the hyperfine interaction in europium-doped yttrium orthosilicate and europium chloride hexahydrate by Longdell, J. J., Alexander, A. L., Sellars, M. J.

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Cavity enhanced rephased amplified spontaneous emission by A Williamson, Lewis, J Longdell, Jevon

“…Amplified spontaneous emission is usually treated as an incoherent noise process. Recent theoretical and experimental work using rephasing optical pulses has…”
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Demonstration of conditional quantum phase shift between ions in a solid by LONGDELL, J. J, SELLARS, M. J, MANSON, N. B

“…Because of their long coherence times, dopant ions have been considered promising candidates for scalable solid state quantum computing. Here we demonstrate a…”
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Transferability of Crystal-Field Parameters for Rare-Earth Ions in Y2SiO5 Tested by Zeeman Spectroscopy by Jobbitt, N. L., Patchett, S. J., Alizadeh, Y., Reid, M. F., Wells, J.-P. R., Horvath, S. P., Longdell, J. J., Ferrier, A., Goldner, P.

“…Zeeman spectroscopy is used to demonstrate that phenomenological crystal-field parameters determined for the two C 1 point-group symmetry sites in Er 3+ :Y 2…”
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Precision measurement of electronic ion-ion interactions between neighboring Eu3+ optical centers by Ahlefeldt, R L, McAuslan, D L, Longdell, J J, Manson, N B, Sellars, M J

“…We report measurements of discrete excitation-induced frequency shifts on the 7F0→5D0 transition of the Eu+ center in La:Lu:EuCl3·6D2O resulting from the…”
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Using quantum memory techniques for optical detection of ultrasound by McAuslan, D. L., Taylor, L. R., Longdell, J. J.

“…Quantum memories are inherently highly efficient and display low noise, making them particularly suitable for the optical detection of ultrasound. Here, we use…”
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Magneto-optic modulator with unit quantum efficiency by Williamson, Lewis A, Chen, Yu-Hui, Longdell, Jevon J

“…We propose a device for the reversible and quiet conversion of microwave photons to optical sideband photons that can reach 100% quantum efficiency. The device…”
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Method of extending hyperfine coherence times in Pr3+:Y2SiO5 by Fraval, E, Sellars, M J, Longdell, J J

“…In this Letter, we present a method for increasing the coherence time of praseodymium hyperfine ground state transitions in Pr(3+):Y(2)SiO5 by the application…”
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Optically addressable nuclear spins in a solid with a six-hour coherence time by Zhong, Manjin, Hedges, Morgan P., Ahlefeldt, Rose L., Bartholomew, John G., Beavan, Sarah E., Wittig, Sven M., Longdell, Jevon J., Sellars, Matthew J.

“…An essential ingredient of future worldwide quantum communication is the generation of long-lived entangled quantum states; a coherence time of six hours is…”
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Efficient quantum memory for light by Sellars, Matthew J, Longdell, Jevon J, Hedges, Morgan P, Li, Yongmin

“…Storing and retrieving a quantum state of light on demand, without corrupting the information it carries, is an important challenge in the field of quantum…”
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Quantum study of information delay in electromagnetically induced transparency by Hsu, M T L, Hétet, G, Glöckl, O, Longdell, J J, Buchler, B C, Bachor, H-A, Lam, P K

“…Using electromagnetically induced transparency (EIT), it is possible to delay and store light in atomic ensembles. Theoretical modeling and recent experiments…”
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Reducing decoherence in optical and spin transitions in rare-earth-metal-ion–doped materials by McAuslan, D. L., Bartholomew, J. G., Sellars, M. J., Longdell, J. J.

“…In many important situations, the dominant dephasing mechanism in cryogenic rare-earth-metal-ion-doped systems is due to magnetic field fluctuations from spins…”
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Generation of Light with Multimode Time-Delayed Entanglement Using Storage in a Solid-State Spin-Wave Quantum Memory by Ferguson, Kate R, Beavan, Sarah E, Longdell, Jevon J, Sellars, Matthew J

“…Here, we demonstrate generating and storing entanglement in a solid-state spin-wave quantum memory with on-demand readout using the process of rephased…”
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Coherent frequency up-conversion of microwaves to the optical telecommunications band in an Er:YSO crystal by Fernandez-Gonzalvo, Xavier, Chen, Yu-Hui, Yin, Chunming, Rogge, Sven, Longdell, Jevon J.

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