Zobrazeno 1 - 10
of 208
pro vyhledávání: '"Chow, J. M."'
Autor:
Chow, J. M., DiCarlo, L., Gambetta, J. M., Motzoi, F., Frunzio, L., Girvin, S. M., Schoelkopf, R. J.
Publikováno v:
Phys. Rev. A 82, 040305(R) (2010)
We employ pulse shaping to abate single-qubit gate errors arising from the weak anharmonicity of transmon superconducting qubits. By applying shaped pulses to both quadratures of rotation, a phase error induced by the presence of higher levels is cor
Externí odkaz:
http://arxiv.org/abs/1005.1279
Autor:
DiCarlo, L., Reed, M. D., Sun, L., Johnson, B. R., Chow, J. M., Gambetta, J. M., Frunzio, L., Girvin, S. M., Devoret, M. H., Schoelkopf, R. J.
Publikováno v:
Nature 467, 574-578 (2010)
Traditionally, quantum entanglement has played a central role in foundational discussions of quantum mechanics. The measurement of correlations between entangled particles can exhibit results at odds with classical behavior. These discrepancies incre
Externí odkaz:
http://arxiv.org/abs/1004.4324
Autor:
Reed, M. D., Johnson, B. R., Houck, A. A., DiCarlo, L., Chow, J. M., Schuster, D. I., Frunzio, L., Schoelkopf, R. J.
Publikováno v:
Appl. Phys. Lett. 96, 203110 (2010)
Spontaneous emission through a coupled cavity can be a significant decay channel for qubits in circuit quantum electrodynamics. We present a circuit design that effectively eliminates spontaneous emission due to the Purcell effect while maintaining s
Externí odkaz:
http://arxiv.org/abs/1003.0142
Autor:
Chow, J. M., DiCarlo, L., Gambetta, J. M., Nunnenkamp, A., Bishop, Lev S., Frunzio, L., Devoret, M. H., Girvin, S. M., Schoelkopf, R. J.
Publikováno v:
Phys. Rev. A 81, 062325 (2010)
Accurate and precise detection of multi-qubit entanglement is key for the experimental development of quantum computation. Traditionally, non-classical correlations between entangled qubits are measured by counting coincidences between single-shot re
Externí odkaz:
http://arxiv.org/abs/0908.1955
Autor:
DiCarlo, L., Chow, J. M., Gambetta, J. M., Bishop, Lev S., Johnson, B. R., Schuster, D. I., Majer, J., Blais, A., Frunzio, L., Girvin, S. M., Schoelkopf, R. J.
Publikováno v:
Nature 460, 240-244 (2009)
By harnessing the superposition and entanglement of physical states, quantum computers could outperform their classical counterparts in solving problems of technological impact, such as factoring large numbers and searching databases. A quantum proce
Externí odkaz:
http://arxiv.org/abs/0903.2030
Autor:
Chow, J. M., Gambetta, J. M., Tornberg, L., Koch, Jens, Bishop, Lev S., Houck, A. A., Johnson, B. R., Frunzio, L., Girvin, S. M., Schoelkopf, R. J.
Publikováno v:
Phys. Rev. Lett. 102, 090502 (2009)
We present measurements of single-qubit gate errors for a superconducting qubit. Results from quantum process tomography and randomized benchmarking are compared with gate errors obtained from a double pi pulse experiment. Randomized benchmarking rev
Externí odkaz:
http://arxiv.org/abs/0811.4387
Autor:
Bishop, Lev S., Chow, J. M., Koch, Jens, Houck, A. A., Devoret, M. H., Thuneberg, E., Girvin, S. M., Schoelkopf, R. J.
Publikováno v:
Nature Physics 5, 105 - 109 (2009)
On the level of single atoms and photons, the coupling between atoms and the electromagnetic field is typically very weak. By employing a cavity to confine the field, the strength of this interaction can be increased many orders of magnitude to a poi
Externí odkaz:
http://arxiv.org/abs/0807.2882
Autor:
Houck, A. A., Schreier, J. A., Johnson, B. R., Chow, J. M., Koch, Jens, Gambetta, J. M., Schuster, D. I., Frunzio, L., Devoret, M. H., Girvin, S. M., Schoelkopf, R. J.
Publikováno v:
Phys. Rev. Lett. 101, 080502 (2008)
We present a detailed characterization of coherence in seven transmon qubits in a circuit QED architecture. We find that spontaneous emission rates are strongly influenced by far off-resonant modes of the cavity and can be understood within a semicla
Externí odkaz:
http://arxiv.org/abs/0803.4490
Autor:
Schreier, J. A., Houck, A. A., Koch, Jens, Schuster, D. I., Johnson, B. R., Chow, J. M., Gambetta, J. M., Majer, J., Frunzio, L., Devoret, M. H., Girvin, S. M., Schoelkopf, R. J.
Publikováno v:
Phys. Rev. B 77, 180502(R) (2008)
We present an experimental realization of the transmon qubit, an improved superconducting charge qubit derived from the Cooper pair box. We experimentally verify the predicted exponential suppression of sensitivity to 1/f charge noise [J. Koch et al.
Externí odkaz:
http://arxiv.org/abs/0712.3581
Autor:
Majer, J., Chow, J. M., Gambetta, J. M., Koch, Jens, Johnson, B. R., Schreier, J. A., Frunzio, L., Schuster, D. I., Houck, A. A., Wallraff, A., Blais, A., Devoret, M. H., Girvin, S. M., Schoelkopf, R. J.
Publikováno v:
Nature 449, 443-447 (27 September 2007)
Superconducting circuits are promising candidates for constructing quantum bits (qubits) in a quantum computer; single-qubit operations are now routine, and several examples of two qubit interactions and gates having been demonstrated. These experime
Externí odkaz:
http://arxiv.org/abs/0709.2135