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Pedram Roushan
Researcher at Google
Publications - 125
Citations - 26075
Pedram Roushan is an academic researcher from Google. The author has contributed to research in topics: Qubit & Quantum computer. The author has an hindex of 54, co-authored 108 publications receiving 19085 citations. Previous affiliations of Pedram Roushan include Princeton University & University of California, Santa Barbara.
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Supplementary information for "Quantum supremacy using a programmable superconducting processor"
Frank Arute,Kunal Arya,Ryan Babbush,Dave Bacon,Joseph C. Bardin,Rami Barends,Rupak Biswas,Sergio Boixo,Fernando G. S. L. Brandão,David A. Buell,B. Burkett,Yu Chen,Zijun Chen,Ben Chiaro,Roberto Collins,William Courtney,Andrew Dunsworth,Edward Farhi,Brooks Foxen,Austin G. Fowler,Craig Gidney,Marissa Giustina,R. Graff,Keith Guerin,Steve Habegger,Matthew P. Harrigan,Michael J. Hartmann,Alan Ho,Markus R. Hoffmann,Trent Huang,Travis S. Humble,Sergei V. Isakov,Evan Jeffrey,Zhang Jiang,Dvir Kafri,Kostyantyn Kechedzhi,Julian Kelly,Paul V. Klimov,Sergey Knysh,Alexander N. Korotkov,Fedor Kostritsa,David Landhuis,Mike Lindmark,Erik Lucero,Dmitry I. Lyakh,Salvatore Mandrà,Jarrod R. McClean,Matt McEwen,Anthony Megrant,Xiao Mi,Kristel Michielsen,Masoud Mohseni,Josh Mutus,Ofer Naaman,Matthew Neeley,Charles Neill,Murphy Yuezhen Niu,Eric Ostby,Andre Petukhov,John Platt,Chris Quintana,Eleanor Rieffel,Pedram Roushan,Nicholas C. Rubin,Daniel Sank,Kevin J. Satzinger,Vadim Smelyanskiy,Kevin Sung,Matthew D. Trevithick,Amit Vainsencher,Benjamin Villalonga,Theodore White,Z. Jamie Yao,Ping Yeh,Adam Zalcman,Hartmut Neven,John M. Martinis +76 more
TL;DR: In this paper, an updated version of supplementary information to accompany "Quantum supremacy using a programmable superconducting processor", an article published in the October 24, 2019 issue of Nature, is presented.
Journal ArticleDOI
Quantum supremacy using a programmable superconducting processor
Frank Arute,Kunal Arya,Ryan Babbush,Dave Bacon,Joseph C. Bardin,Joseph C. Bardin,Rami Barends,Rupak Biswas,Sergio Boixo,Fernando G. S. L. Brandão,Fernando G. S. L. Brandão,David A. Buell,B. Burkett,Yu Chen,Zijun Chen,Ben Chiaro,Roberto Collins,William Courtney,Andrew Dunsworth,Edward Farhi,Brooks Foxen,Brooks Foxen,Austin G. Fowler,Craig Gidney,Marissa Giustina,R. Graff,Keith Guerin,Steve Habegger,Matthew P. Harrigan,Michael J. Hartmann,Michael J. Hartmann,Alan Ho,Markus R. Hoffmann,Trent Huang,Travis S. Humble,Sergei V. Isakov,Evan Jeffrey,Zhang Jiang,Dvir Kafri,Kostyantyn Kechedzhi,Julian Kelly,Paul V. Klimov,Sergey Knysh,Alexander N. Korotkov,Alexander N. Korotkov,Fedor Kostritsa,David Landhuis,Mike Lindmark,E. Lucero,Dmitry I. Lyakh,Salvatore Mandrà,Jarrod R. McClean,Matt McEwen,Anthony Megrant,Xiao Mi,Kristel Michielsen,Kristel Michielsen,Masoud Mohseni,Josh Mutus,Ofer Naaman,Matthew Neeley,Charles Neill,Murphy Yuezhen Niu,Eric Ostby,Andre Petukhov,John Platt,Chris Quintana,Eleanor Rieffel,Pedram Roushan,Nicholas C. Rubin,Daniel Sank,Kevin J. Satzinger,Vadim Smelyanskiy,Kevin J. Sung,Kevin J. Sung,Matthew D. Trevithick,Amit Vainsencher,Benjamin Villalonga,Benjamin Villalonga,Theodore White,Z. Jamie Yao,Ping Yeh,Adam Zalcman,Hartmut Neven,John M. Martinis,John M. Martinis +85 more
TL;DR: Quantum supremacy is demonstrated using a programmable superconducting processor known as Sycamore, taking approximately 200 seconds to sample one instance of a quantum circuit a million times, which would take a state-of-the-art supercomputer around ten thousand years to compute.
Journal ArticleDOI
Superconducting quantum circuits at the surface code threshold for fault tolerance
Rami Barends,Julian Kelly,A. Megrant,Andrzej Veitia,Daniel Sank,Evan Jeffrey,Ted White,Josh Mutus,Austin G. Fowler,Brooks Campbell,Yu Chen,Zijun Chen,Benjamin Chiaro,Andrew Dunsworth,Charles Neill,Peter O'Malley,Pedram Roushan,Amit Vainsencher,James Wenner,Alexander N. Korotkov,Andrew Cleland,John M. Martinis +21 more
TL;DR: The results demonstrate that Josephson quantum computing is a high-fidelity technology, with a clear path to scaling up to large-scale, fault-tolerant quantum circuits.
Journal ArticleDOI
State preservation by repetitive error detection in a superconducting quantum circuit
Julian Kelly,Rami Barends,Austin G. Fowler,A. Megrant,Evan Jeffrey,Ted White,Daniel Sank,Josh Mutus,Brooks Campbell,Yu Chen,Zijun Chen,Benjamin Chiaro,Andrew Dunsworth,Io-Chun Hoi,Charles Neill,Peter O'Malley,Chris Quintana,Pedram Roushan,Amit Vainsencher,James Wenner,Andrew Cleland,John M. Martinis +21 more
TL;DR: The protection of classical states from environmental bit-flip errors is reported and the suppression of these errors with increasing system size is demonstrated, motivating further research into the many challenges associated with building a large-scale superconducting quantum computer.
Journal ArticleDOI
Scalable Quantum Simulation of Molecular Energies
Peter O'Malley,Ryan Babbush,Ian D. Kivlichan,Jonathan Romero,Jarrod R. McClean,Rami Barends,Julian Kelly,Pedram Roushan,Andrew Tranter,Andrew Tranter,Nan Ding,Brooks Campbell,Yu Chen,Zijun Chen,Ben Chiaro,Andrew Dunsworth,Austin G. Fowler,Evan Jeffrey,Anthony Megrant,Josh Mutus,Charles Neil,Chris Quintana,Daniel Sank,Ted White,James Wenner,Amit Vainsencher,Peter V. Coveney,Peter J. Love,Hartmut Neven,Alán Aspuru-Guzik,John M. Martinis,John M. Martinis +31 more
TL;DR: In this paper, the first electronic structure calculation performed on a quantum computer without exponentially costly precompilation is reported, where a programmable array of superconducting qubits is used to compute the energy surface of molecular hydrogen using two distinct quantum algorithms.