Zobrazeno 1 - 10
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pro vyhledávání: '"LEWIS, R. M."'
Autor:
Lewis, R. M., Battey, H. S.
For sparse high-dimensional regression problems, Cox and Battey [1, 9] emphasised the need for confidence sets of models: an enumeration of those small sets of variables that fit the data equivalently well in a suitable statistical sense. This is to
Externí odkaz:
http://arxiv.org/abs/2302.12627
Autor:
Palomaki, T. A., Dutta, S. K., Lewis, R. M., Przybysz, A. J., Paik, Hanhee, Cooper, B. K., Kwon, H., Anderson, J. R., Lobb, C. J., Tiesinga, E., Wellstood, F. C.
We report spectroscopic measurements of discrete two-level systems (TLSs) coupled to a dc SQUID phase qubit with a 16 \mu\m2 area Al/AlOx/Al junction. Applying microwaves in the 10 GHz to 11 GHz range, we found eight avoided level crossings with spli
Externí odkaz:
http://arxiv.org/abs/1003.3941
Akademický článek
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Autor:
Dutta, S. K., Strauch, Frederick W., Lewis, R. M., Mitra, Kaushik, Paik, Hanhee, Palomaki, T. A., Tiesinga, Eite, Anderson, J. R., Dragt, Alex J., Lobb, C. J., Wellstood, F. C.
Publikováno v:
Phys. Rev. B 78, 104510 (2008)
We present Rabi oscillation measurements of a Nb/AlOx/Nb dc superconducting quantum interference device (SQUID) phase qubit with a 100 um^2 area junction acquired over a range of microwave drive power and frequency detuning. Given the slightly anharm
Externí odkaz:
http://arxiv.org/abs/0806.4711
Autor:
Paik, Hanhee, Dutta, S. K., Lewis, R. M., Palomaki, T. A., Cooper, B. K., Ramos, R. C., Xu, H., Dragt, A. J., Anderson, J. R., Lobb, C. J., Wellstood, F. C.
We report measurements of Rabi oscillations and spectroscopic coherence times in an Al/AlOx/Al and three Nb/AlOx/Nb dc SQUID phase qubits. One junction of the SQUID acts as a phase qubit and the other junction acts as a current-controlled nonlinear i
Externí odkaz:
http://arxiv.org/abs/0804.4430
Autor:
Sambandamurthy, G., Lewis, R. M., Zhu, Han, Chen, Y. P., Engel, L. W., Tsui, D. C., Pfeiffer, L. N., West, K. W.
We study the radio-frequency diagonal conductivities of the anisotropic stripe phases of higher Landau levels near half integer fillings. In the hard direction, in which larger dc resistivity occurs, the spectrum exhibits a striking resonance, while
Externí odkaz:
http://arxiv.org/abs/0803.3228
Autor:
Paik, Hanhee, Cooper, B. K., Dutta, S. K., Lewis, R. M., Ramos, R. C., Palomaki, T. A., Przybysz, A. J., Dragt, A. J., Anderson, J. R., Lobb, C. J., Wellstood, F. C.
We report measurements of spectroscopic linewidth and Rabi oscillations in three thin-film dc SQUID phase qubits. One device had a single-turn Al loop, the second had a 6-turn Nb loop, and the third was a first order gradiometer formed from 6-turn wo
Externí odkaz:
http://arxiv.org/abs/0705.4509
Autor:
Strauch, F. W., Dutta, S. K., Paik, Hanhee, Palomaki, T. A., Mitra, K., Cooper, B. K., Lewis, R. M., Anderson, J. R., Dragt, A. J., Lobb, C. J., Wellstood, F. C.
Rabi oscillations have been observed in many superconducting devices, and represent prototypical logic operations for quantum bits (qubits) in a quantum computer. We use a three-level multiphoton analysis to understand the behavior of the superconduc
Externí odkaz:
http://arxiv.org/abs/cond-mat/0703081