Zobrazeno 1 - 10
of 124
pro vyhledávání: '"Sadgrove M"'
Autor:
Osada, A., Hisatomi, R., Noguchi, A., Tabuchi, Y., Yamazaki, R., Usami, K., Sadgrove, M., Yalla, R., Nomura, M., Nakamura, Y.
Publikováno v:
Phys. Rev. Lett. 116, 223601 (2016)
We experimentally implement a system of cavity optomagnonics, where a sphere of ferromagnetic material supports whispering gallery modes (WGMs) for photons and the magnetostatic mode for magnons. We observe pronounced nonreciprocity and asymmetry in
Externí odkaz:
http://arxiv.org/abs/1510.01837
Publikováno v:
Fluctuation and Noise Letters 12, 1340004 (2013)
We present a generalized kick rotor model in which the phase of the kick can vary from kick to kick. This additional freedom allows one to control the transport in phase space. For a specific choice of kick-to-kick phases, we predict novel forms of a
Externí odkaz:
http://arxiv.org/abs/1310.5947
We implement a photonic crystal nanofiber device by reversibly combining an optical nanofiber and a nanofabricated grating. Using the finite-difference time-domain method, we design the system for minimal optical loss while tailoring the resonant wav
Externí odkaz:
http://arxiv.org/abs/1306.0166
We perform atom interferometry using the Zeeman sublevels of a spin-2 Bose-Einstein condensate of $^{87}$Rb. The observed fringes are strongly peaked, and fringe repetition rates higher than the fundamental Ramsey frequency are found in agreement wit
Externí odkaz:
http://arxiv.org/abs/1303.0637
We present measurements of the mean energy for an atom optics kicked rotor ensemble close to quantum resonance. Oscillations in the mean energy in this regime are are shown to be in agreement with a quasi--classical pendulum approximation. The period
Externí odkaz:
http://arxiv.org/abs/quant-ph/0504219
Autor:
Mullins, T. G., Hilliard, A. J., Sadgrove, M. P., Hoogerland, M. D., Parkins, A. S., Leonhardt, R.
We present an investigation into effects exhibited by the two-frequency kicked rotor. Experiments were performed and in addition quantum and classical dynamics were simulated and compared with the experimental results. The experiments involved pulsin
Externí odkaz:
http://arxiv.org/abs/quant-ph/0409145
We report the experimental observation of resonances in the early-time momentum diffusion rates for the atom-optical delta-kicked rotor. In this work a Bose-Einstein condensate provides a source of ultra-cold atoms with an ultra-narow initial momentu
Externí odkaz:
http://arxiv.org/abs/cond-mat/0401346
Autor:
Williams, M. E. K., Sadgrove, M. P., Daley, A. J., Gray, R. N. C., Tan, S. M., Parkins, A. S., Leonhardt, R., Christensen, N.
We present experimental observations of diffusion resonances for the quantum kicked rotor with weak decoherence. Cold caesium atoms are subject to a pulsed standing wave of near-resonant light, with spontaneous emission providing environmental coupli
Externí odkaz:
http://arxiv.org/abs/quant-ph/0208090
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Akademický článek
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