Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Boyle, S. J."'
Autor:
Godden, T. M., Quilter, J. H., Ramsay, A. J., Wu, Yanwen, Brereton, P., Boyle, S. J., Luxmoore, I. J., Puebla-Nunez, J., Fox, A. M., Skolnick, M. S.
Publikováno v:
Phys. Rev. Lett. 108 017402 (2012)
We demonstrate coherent optical control of a single hole spin confined to an InAs/GaAs quantum dot. A superposition of hole spin states is created by fast (10-100 ps) dissociation of a spin-polarized electron-hole pair. Full control of the hole-spin
Externí odkaz:
http://arxiv.org/abs/1106.6282
Autor:
Ramsay, A. J., Godden, T. M., Boyle, S. J., Gauger, E. M., Nazir, A., Lovett, B. W., Gopal, Achanta Venu, Fox, A. M., Skolnick, M. S.
Publikováno v:
Journal of Applied Physics 109 102415 (2011)
Recently, longitudinal acoustic phonons have been identified as the main source of the intensity damping observed in Rabi rotation measurements of the ground-state exciton of a single InAs/GaAs quantum dot. Here we report experiments of intensity dam
Externí odkaz:
http://arxiv.org/abs/1106.0142
We demonstrate fast initialization of a single hole spin captured in an InGaAs quantum dot with a fidelity F>99% by applying a magnetic field parallel to the growth direction. We show that the fidelity of the hole spin, prepared by ionization of a ph
Externí odkaz:
http://arxiv.org/abs/1006.5842
Autor:
Ramsay, A. J., Godden, T. M., Boyle, S. J., Gauger, E. M., Nazir, A., Lovett, B. W., Fox, A. M., Skolnick, M. S.
Publikováno v:
Physical Review Letters 105 177402 (2010)
We study optically driven Rabi rotations of a quantum dot exciton transition between 5 and 50 K, and for pulse-areas of up to $14\pi$. In a high driving field regime, the decay of the Rabi rotations is nonmonotonic, and the period decreases with puls
Externí odkaz:
http://arxiv.org/abs/1005.1580
Autor:
Ramsay, A. J., Boyle, S. J., Godden, T. M., Kolodka, R. S., Khatab, A. F. A., Oliveira, J. B. B., Skiba-Szymanska, J., Liuc, H. -Y., Hopkinson, M., Fox, A. M., Skolnick, M. S.
Publikováno v:
Solid State Communications 149 1458 (2009)
A hole spin is a potential solid-state q-bit, that may be more robust against nuclear spin induced dephasing than an electron spin. Here we propose and demonstrate the sequential preparation, control and detection of a single hole spin trapped on a s
Externí odkaz:
http://arxiv.org/abs/0907.4634
Autor:
Boyle, S. J., Ramsay, A. J., Bello, F., Liu, H. Y., Hopkinson, M., Fox, A. M., Skolnick, M. S.
The four-level exciton/biexciton system of a single semiconductor quantum dot acts as a two qubit register. We experimentally demonstrate an exciton-biexciton Rabi rotation conditional on the initial exciton spin in a single InGaAs/GaAs dot. This for
Externí odkaz:
http://arxiv.org/abs/0802.4368
Autor:
Ramsay, A. J., Boyle, S. J., Kolodka, R. S., Oliveira, J. B. B., Skiba-Szymanska, J., Liu, H. Y., Hopkinson, M., Fox, A. M., Skolnick, M. S.
Publikováno v:
Phys. Rev. Lett. 100 197401 (2008)
We propose and demonstrate the sequential initialization, optical control, and read-out of a single spin trapped in a semiconductor quantum dot. Hole spin preparation is achieved through ionization of a resonantly excited electron-hole pair. Optical
Externí odkaz:
http://arxiv.org/abs/0710.3738
Publikováno v:
ResearcherID
We report picosecond control of excitonic dressed states in a single semiconductor quantum dot. A strong laser pulse couples the exciton and biexciton states, to form an Autler-Townes doublet of the neutral exciton transition. The Rabi-splitting, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::382d33f6a7b85baddb7fdae4d5081a9e
https://eprints.whiterose.ac.uk/8733/2/Ramsay_Beating.pdf
https://eprints.whiterose.ac.uk/8733/2/Ramsay_Beating.pdf
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Akademický článek
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