Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Uchaikin, S."'
Autor:
Yi, A. K., Seong, T., Lee, S., Ahn, S., Ivanov, B. I., Uchaikin, S. V., Ko, B. R., Semertzidis, Y. K.
Most search experiments sensitive to quantum chromodynamics (QCD) axion dark matter benefit from microwave cavities, as electromagnetic resonators, that enhance the detectable axion signal power and thus the experimental sensitivity drastically. As t
Externí odkaz:
http://arxiv.org/abs/2406.07782
Autor:
Giachero, A., Barone, C., Borghesi, M., Carapella, G., Caricato, A. P., Carusotto, I., Chang, W., Cian, A., Di Gioacchino, D., Enrico, E., Falferi, P., Fasolo, L., Faverzani, M., Ferri, E., Filatrella, G., Gatti, C., Giubertoni, D., Greco, A., Kutlu, C., Leo, A., Ligi, C., Maccarrone, G., Margesin, B., Maruccio, G., Matlashov, A., Mauro, C., Mezzena, R., Monteduro, A. G., Nucciotti, A., Oberto, L., Pagano, S., Pierro, V., Piersanti, L., Rajteri, M., Rizzato, S., Semertzidis, Y. K., Uchaikin, S., Vinante, A.
Noise at the quantum limit over a large bandwidth is a fundamental requirement for future applications operating at millikelvin temperatures, such as the neutrino mass measurement, the next-generation x-ray observatory, the CMB measurement, the dark
Externí odkaz:
http://arxiv.org/abs/2111.01512
Autor:
Lanting, T., Przybysz, A. J., Smirnov, A. Yu., Spedalieri, F. M., Amin, M. H., Berkley, A. J., Harris, R., Altomare, F., Boixo, S., Bunyk, P., Dickson, N., Enderud, C., Hilton, J. P., Hoskinson, E., Johnson, M. W., Ladizinsky, E., Ladizinsky, N., Neufeld, R., Oh, T., Perminov, I., Rich, C., Thom, M. C., Tolkacheva, E., Uchaikin, S., Wilson, A. B., Rose, G.
Publikováno v:
Phys. Rev. X 4, 021041 (2014)
Entanglement lies at the core of quantum algorithms designed to solve problems that are intractable by classical approaches. One such algorithm, quantum annealing (QA), provides a promising path to a practical quantum processor. We have built a serie
Externí odkaz:
http://arxiv.org/abs/1401.3500
Autor:
Berkley, A. J., Przybysz, A. J., Lanting, T., Harris, R., Dickson, N., Altomare, F., Amin, M. H., Bunyk, P., Enderud, C., Hoskinson, E., Johnson, M. W., Ladizinsky, E., Neufeld, R., Rich, C., Smirnov, A. Yu., Tolkacheva, E., Uchaikin, S., Wilson, A. B.
Publikováno v:
Phys. Rev. B 87, 020502 (2013)
We describe a quantum tunneling spectroscopy technique that requires only low bandwidth control. The method involves coupling a probe qubit to the system under study to create a localized probe state. The energy of the probe state is then scanned wit
Externí odkaz:
http://arxiv.org/abs/1210.6310
Autor:
Lanting, T., Harris, R., Johansson, J., Amin, M. H. S., Berkley, A. J., Gildert, S., Johnson, M. W., Bunyk, P., Tolkacheva, E., Ladizinsky, E., Ladizinsky, N., Oh, T., Perminov, I., Chapple, E. M., Enderud, C., Rich, C., Wilson, B., Thom, M. C., Uchaikin, S., Rose, G.
Publikováno v:
PRB 82 (060512) 2010
We report measurements of macroscopic resonant tunneling between the two lowest energy states of a pair of magnetically coupled rf-SQUID flux qubits. This technique provides a direct means of observing two-qubit dynamics and a probe of the environmen
Externí odkaz:
http://arxiv.org/abs/1006.0028
Autor:
Harris, R., Johnson, M. W., Lanting, T., Berkley, A. J., Johansson, J., Bunyk, P., Tolkacheva, E., Ladizinsky, E., Ladizinsky, N., Oh, T., Cioata, F., Perminov, I., Spear, P., Enderud, C., Rich, C., Uchaikin, S., Thom, M. C., Chapple, E. M., Wang, J., Wilson, B., Amin, M. H. S., Dickson, N., Karimi, K., Macready, B., Truncik, C. J. S., Rose, G.
Publikováno v:
Phys. Rev. B 82, 024511 (2010)
A superconducting chip containing a regular array of flux qubits, tunable interqubit inductive couplers, an XY-addressable readout system, on-chip programmable magnetic memory, and a sparse network of analog control lines has been studied. The archit
Externí odkaz:
http://arxiv.org/abs/1004.1628
Autor:
Harris, R., Johansson, J., Berkley, A. J., Johnson, M. W., Lanting, T., Han, Siyuan, Bunyk, P., Ladizinsky, E., Oh, T., Perminov, I., Tolkacheva, E., Uchaikin, S., Chapple, E., Enderud, C., Rich, C., Thom, M., Wang, J., Wilson, B., Rose, G.
Publikováno v:
Physical Review B 81, 134510 (2010)
A novel rf-SQUID flux qubit that is robust against fabrication variations in Josephson junction critical currents and device inductance has been implemented. Measurements of the persistent current and of the tunneling energy between the two lowest ly
Externí odkaz:
http://arxiv.org/abs/0909.4321
Autor:
Harris, R., Johnson, M. W., Han, S., Berkley, A. J., Johansson, J., Bunyk, P., Ladizinsky, E., Govorkov, S., Thom, M. C., Uchaikin, S., Bumble, B., Fung, A., Kaul, A., Kleinsasser, A., Amin, M. H. S., Averin, D. V.
Publikováno v:
Phys. Rev. Lett. 101, 117003 (2008)
Macroscopic resonant tunneling between the two lowest lying states of a bistable RF-SQUID is used to characterize noise in a flux qubit. Measurements of the incoherent decay rate as a function of flux bias revealed a Gaussian shaped profile that is n
Externí odkaz:
http://arxiv.org/abs/0712.0838
Autor:
van der Ploeg, S. H. W., Izmalkov, A., Grajcar, M., Huebner, U., Linzen, S., Uchaikin, S., Wagner, Th., Smirnov, A. Yu., Brink, A. Maassen van den, Amin, M. H. S., Zagoskin, A. M., Il'ichev, E., Meyer, H. -G.
Controllable adiabatic evolution of a multi-qubit system can be used for adiabatic quantum computation (AQC). This evolution ends at a configuration where the Hamiltonian of the system encodes the solution of the problem to be solved. As a first step
Externí odkaz:
http://arxiv.org/abs/cond-mat/0702580
Autor:
Harris, R., Berkley, A. J., Johnson, M. W., Bunyk, P., Govorkov, S., Thom, M. C., Uchaikin, S., Wilson, A. B., Chung, J., Holtham, E., Biamonte, J. D., Smirnov, A. Yu., Amin, M. H. S., Brink, Alec Maassen van den
Publikováno v:
Physical Review Letters, Volume 98, 177001 (2007)
We experimentally confirm the functionality of a coupling element for flux-based superconducting qubits, with a coupling strength $J$ whose sign and magnitude can be tuned {\it in situ}. To measure the effective $J$, the groundstate of a coupled two-
Externí odkaz:
http://arxiv.org/abs/cond-mat/0608253