Zobrazeno 1 - 10
of 298
pro vyhledávání: '"Johnson, K. G."'
Publikováno v:
Phys. Rev. Lett. 119, 230501 (2017)
We demonstrate quantum entanglement of two trapped atomic ion qubits using a sequence of ultrafast laser pulses. Unlike previous demonstrations of entanglement mediated by the Coulomb interaction, this scheme does not require confinement to the Lamb-
Externí odkaz:
http://arxiv.org/abs/1709.05179
Mesoscopic quantum superpositions, or Schr\"odinger cat states, are widely studied for fundamental investigations of quantum measurement and decoherence as well as applications in sensing and quantum information science. The generation and maintenanc
Externí odkaz:
http://arxiv.org/abs/1612.05854
Autor:
Johnson, K. G., Wong-Campos, J. D., Restelli, A., Landsman, K. A., Neyenhuis, B., Mizrahi, J., Monroe, C.
We actively stabilize the harmonic oscillation frequency of a laser-cooled atomic ion confined in a rf Paul trap by sampling and rectifying the high voltage rf applied to the trap electrodes. We are able to stabilize the 1 MHz atomic oscillation freq
Externí odkaz:
http://arxiv.org/abs/1603.05492
We report the optical imaging of a single atom with nanometer resolution using an adaptive optical alignment technique that is applicable to general optical microscopy. By decomposing the image of a single laser-cooled atom, we identify and correct o
Externí odkaz:
http://arxiv.org/abs/1512.06172
Publikováno v:
Phys. Rev. Lett. 115, 213001 (2015)
We sense the motion of a trapped atomic ion using a sequence of state-dependent ultrafast momentum kicks. We use this atom interferometer to characterize a nearly-pure quantum state with $n=1$ phonon and accurately measure thermal states ranging from
Externí odkaz:
http://arxiv.org/abs/1507.06591
Autor:
Islam, R., Campbell, W. C., Choi, T., Clark, S. M., Debnath, S., Edwards, E. E., Fields, B., Hayes, D., Hucul, D., Inlek, I. V., Johnson, K. G., Korenblit, S., Lee, A., Lee, K. W., Manning, T. A., Matsukevich, D. N., Mizrahi, J., Quraishi, Q., Senko, C., Smith, J., Monroe, C.
Publikováno v:
Optics Letters, 39(11), 2014
We stabilize a chosen radiofrequency beat note between two optical fields derived from the same mode-locked laser pulse train, in order to coherently manipulate quantum information. This scheme does not require access or active stabilization of the l
Externí odkaz:
http://arxiv.org/abs/1312.6846
Autor:
Johnson, K. G.
The aim of my research was to understand how RPTPs are involved in retinal ganglion cell (RGC) axon outgrowth and guidance in the development of the Xenopus visual system. I first describe the cloning and expression patterns of a variety of RPTPs in
Externí odkaz:
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.605647
Autor:
Mizrahi, J., Senko, C., Neyenhuis, B., Johnson, K. G., Campbell, W. C., Conover, C. W. S., Monroe, C.
Publikováno v:
Phys. Rev. Lett. 110, 203001 (2013)
We report entanglement of a single atom's hyperfine spin state with its motional state in a timescale of less than 3 ns. We engineer a short train of intense laser pulses to impart a spin-dependent momentum transfer of +/- 2 hbar k. Using pairs of mo
Externí odkaz:
http://arxiv.org/abs/1201.6597
Autor:
Todd, J. A., Jackson, J. B. C., Johnson, K. G., Fortunato, H. M., Heitz, A., Alvarez, M., Jung, P.
Publikováno v:
Proceedings: Biological Sciences, 2002 Mar . 269(1491), 571-577.
Externí odkaz:
https://www.jstor.org/stable/3067631
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