Zobrazeno 1 - 10
of 139
pro vyhledávání: '"R. Barends"'
Autor:
M. McEwen, D. Kafri, Z. Chen, J. Atalaya, K. J. Satzinger, C. Quintana, P. V. Klimov, D. Sank, C. Gidney, A. G. Fowler, F. Arute, K. Arya, B. Buckley, B. Burkett, N. Bushnell, B. Chiaro, R. Collins, S. Demura, A. Dunsworth, C. Erickson, B. Foxen, M. Giustina, T. Huang, S. Hong, E. Jeffrey, S. Kim, K. Kechedzhi, F. Kostritsa, P. Laptev, A. Megrant, X. Mi, J. Mutus, O. Naaman, M. Neeley, C. Neill, M. Niu, A. Paler, N. Redd, P. Roushan, T. C. White, J. Yao, P. Yeh, A. Zalcman, Yu Chen, V. N. Smelyanskiy, John M. Martinis, H. Neven, J. Kelly, A. N. Korotkov, A. G. Petukhov, R. Barends
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)
Correlated errors coming from leakage out of the computational subspace are an obstacle to fault-tolerant superconducting circuits. Here, the authors use a multi-level reset protocol to improve the performances of a bit-flip error correcting code by
Externí odkaz:
https://doaj.org/article/ef5bee6bb56f44459aef65280dc80df5
Autor:
B. Chiaro, C. Neill, A. Bohrdt, M. Filippone, F. Arute, K. Arya, R. Babbush, D. Bacon, J. Bardin, R. Barends, S. Boixo, D. Buell, B. Burkett, Y. Chen, Z. Chen, R. Collins, A. Dunsworth, E. Farhi, A. Fowler, B. Foxen, C. Gidney, M. Giustina, M. Harrigan, T. Huang, S. Isakov, E. Jeffrey, Z. Jiang, D. Kafri, K. Kechedzhi, J. Kelly, P. Klimov, A. Korotkov, F. Kostritsa, D. Landhuis, E. Lucero, J. McClean, X. Mi, A. Megrant, M. Mohseni, J. Mutus, M. McEwen, O. Naaman, M. Neeley, M. Niu, A. Petukhov, C. Quintana, N. Rubin, D. Sank, K. Satzinger, T. White, Z. Yao, P. Yeh, A. Zalcman, V. Smelyanskiy, H. Neven, S. Gopalakrishnan, D. Abanin, M. Knap, J. Martinis, P. Roushan
Publikováno v:
Physical Review Research, Vol 4, Iss 1, p 013148 (2022)
The interplay of interactions and strong disorder can lead to an exotic quantum many-body localized (MBL) phase of matter. Beyond the absence of transport, the MBL phase has distinctive signatures, such as slow dephasing and logarithmic entanglement
Externí odkaz:
https://doaj.org/article/9730720d85f1446e9d010b56c4aee4a2
Autor:
P. J. J. O’Malley, R. Babbush, I. D. Kivlichan, J. Romero, J. R. McClean, R. Barends, J. Kelly, P. Roushan, A. Tranter, N. Ding, B. Campbell, Y. Chen, Z. Chen, B. Chiaro, A. Dunsworth, A. G. Fowler, E. Jeffrey, E. Lucero, A. Megrant, J. Y. Mutus, M. Neeley, C. Neill, C. Quintana, D. Sank, A. Vainsencher, J. Wenner, T. C. White, P. V. Coveney, P. J. Love, H. Neven, A. Aspuru-Guzik, J. M. Martinis
Publikováno v:
Physical Review X, Vol 6, Iss 3, p 031007 (2016)
We report the first electronic structure calculation performed on a quantum computer without exponentially costly precompilation. We use a programmable array of superconducting qubits to compute the energy surface of molecular hydrogen using two dist
Externí odkaz:
https://doaj.org/article/9463a77c72cc4ecca202d94a988cb965
Autor:
C, Neill, T, McCourt, X, Mi, Z, Jiang, M Y, Niu, W, Mruczkiewicz, I, Aleiner, F, Arute, K, Arya, J, Atalaya, R, Babbush, J C, Bardin, R, Barends, A, Bengtsson, A, Bourassa, M, Broughton, B B, Buckley, D A, Buell, B, Burkett, N, Bushnell, J, Campero, Z, Chen, B, Chiaro, R, Collins, W, Courtney, S, Demura, A R, Derk, A, Dunsworth, D, Eppens, C, Erickson, E, Farhi, A G, Fowler, B, Foxen, C, Gidney, M, Giustina, J A, Gross, M P, Harrigan, S D, Harrington, J, Hilton, A, Ho, S, Hong, T, Huang, W J, Huggins, S V, Isakov, M, Jacob-Mitos, E, Jeffrey, C, Jones, D, Kafri, K, Kechedzhi, J, Kelly, S, Kim, P V, Klimov, A N, Korotkov, F, Kostritsa, D, Landhuis, P, Laptev, E, Lucero, O, Martin, J R, McClean, M, McEwen, A, Megrant, K C, Miao, M, Mohseni, J, Mutus, O, Naaman, M, Neeley, M, Newman, T E, O'Brien, A, Opremcak, E, Ostby, B, Pató, A, Petukhov, C, Quintana, N, Redd, N C, Rubin, D, Sank, K J, Satzinger, V, Shvarts, D, Strain, M, Szalay, M D, Trevithick, B, Villalonga, T C, White, Z, Yao, P, Yeh, A, Zalcman, H, Neven, S, Boixo, L B, Ioffe, P, Roushan, Y, Chen, V, Smelyanskiy
Publikováno v:
Nature. 594(7864)
A promising approach to study condensed-matter systems is to simulate them on an engineered quantum platform
Autor:
C. Neill, P. Roushan, K. Kechedzhi, S. Boixo, S. V. Isakov, V. Smelyanskiy, A. Megrant, B. Chiaro, A. Dunsworth, K. Arya, R. Barends, B. Burkett, Y. Chen, Z. Chen, A. Fowler, B. Foxen, M. Giustina, R. Graff, E. Jeffrey, T. Huang, J. Kelly, P. Klimov, E. Lucero, J. Mutus, M. Neeley, C. Quintana, D. Sank, A. Vainsencher, J. Wenner, T. C. White, H. Neven, J. M. Martinis
Publikováno v:
Science. 360:195-199
Fundamental questions in chemistry and physics may never be answered due to the exponential complexity of the underlying quantum phenomena. A desire to overcome this challenge has sparked a new industry of quantum technologies with the promise that e
Autor:
J. Kelly, R. Barends, A. G. Fowler, A. Megrant, E. Jeffrey, T. C. White, D. Sank, J. Y. Mutus, B. Campbell, Yu Chen, Z. Chen, B. Chiaro, A. Dunsworth, E. Lucero, M. Neeley, C. Neill, P. J. J. O'Malley, C. Quintana, P. Roushan, A. Vainsencher, J. Wenner, John M. Martinis
We present a method to optimize qubit control parameters during error detection which is compatible with large-scale qubit arrays. We demonstrate our method to optimize single or two-qubit gates in parallel on a nine-qubit system. Additionally, we sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a1237e0a04ae3cef989f3001f2ab345b
Publikováno v:
Journal of Volcanology and Geothermal Research. :11-28
New bulk rock geochemical data on an extensive suite of samples from the Marion and Prince Edward Islands, located in the Southern Ocean at ~ 37°45′E, 46°55′S, show highly coherent major and trace element variations. Rock types are dominated by
Autor:
M. Hajenius, Jochem J. A. Baselmans, G.N. Gol'tsman, Andrey M. Baryshev, T.M. Klapwijk, Boris M. Voronov, R. Barends, J.R. Gao
Publikováno v:
IEEE Transactions on Applied Superconductivity, 15(2), 495-498. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Hot-electron bolometer devices, used successfully in low noise heterodyne mixing at frequencies up to 2.5 THz, have been analyzed. A distributed temperature numerical model of the NbN bridge, based on a local electron and a phonon temperature, is use
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Autor:
R. Barends, W. K.-G. Daalman, A. Endo, S. Zhu, T. Zijlstra, T. M. Klapwijk, Betty Young, Blas Cabrera, Aaron Miller
Publikováno v:
AIP Conference Proceedings.
We have measured the temperature dependence of the resonance frequency and quality factor of superconducting resonators made of a 300 nm thick NbTiN and 10 nm thick Au bilayer down to a temperature of 350 mK. At low temperatures we find a strong temp