A non-orthogonal variational quantum eigensolver

Autor: William J Huggins, Joonho Lee, Unpil Baek, Bryan O’Gorman, K Birgitta Whaley

Publikováno v: New Journal of Physics, Vol 22, Iss 7, p 073009 (2020)

Variational algorithms for strongly correlated chemical and materials systems are one of the most promising applications of near-term quantum computers. We present an extension to the variational quantum eigensolver that approximates the ground state

Externí odkaz: https://doaj.org/article/97bbc4bb94c74958b0b029f2d09a82f1

Virtual Distillation for Quantum Error Mitigation

Autor: William J. Huggins, Sam McArdle, Thomas E. O’Brien, Joonho Lee, Nicholas C. Rubin, Sergio Boixo, K. Birgitta Whaley, Ryan Babbush, Jarrod R. McClean

Publikováno v: Physical Review X, Vol 11, Iss 4, p 041036 (2021)

Contemporary quantum computers have relatively high levels of noise, making it difficult to use them to perform useful calculations, even with a large number of qubits. Quantum error correction is expected to eventually enable fault-tolerant quantum

Externí odkaz: https://doaj.org/article/47f0aaf515cc48a5a32bfac53fdebaaf

Error Mitigation via Verified Phase Estimation

Autor: Thomas E. O’Brien, Stefano Polla, Nicholas C. Rubin, William J. Huggins, Sam McArdle, Sergio Boixo, Jarrod R. McClean, Ryan Babbush

Publikováno v: PRX Quantum, Vol 2, Iss 2, p 020317 (2021)

The accumulation of noise in quantum computers is the dominant issue stymieing the push of quantum algorithms beyond their classical counterparts. We do not expect to be able to afford the overhead required for quantum error correction in the next de

Externí odkaz: https://doaj.org/article/3f6c18736bfe4d4c8322a24f4c8983a7

Time-crystalline eigenstate order on a quantum processor

Autor: Julian Kelly, Alexander Bilmes, Vedika Khemani, Seon Kim, Alexei Kitaev, Murphy Yuezhen Niu, J. Hilton, Orion Martin, Craig Gidney, Bob B. Buckley, Thomas E. O'Brien, Jarrod R. McClean, Alexander N. Korotkov, Pavel Laptev, Tanuj Khattar, Sabrina Hong, Daniel Eppens, Alan Ho, Aditya Locharla, Ofer Naaman, Ping Yeh, Juan Atalaya, Sean D. Harrington, Frank Arute, Roberto Collins, Joao Marcos Vensi Basso, Doug Strain, Matthew P. Harrigan, Zhang Jiang, Joonho Lee, Ami Greene, Alan R. Derk, Roderich Moessner, Bálint Pató, William J. Huggins, Trevor McCourt, Ashley Huff, Joseph C. Bardin, Andre Petukhov, Fedor Kostritsa, Michael Newman, Cody Jones, Sean Demura, Shivaji Lal Sondhi, B. Burkett, Sergio Boixo, Jonathan H. Gross, David A. Buell, Kevin J. Satzinger, Michael Broughton, Daniel Sank, Masoud Mohseni, Lev Ioffe, Yuan Su, Shirin Montazeri, Xiao Mi, Eric Ostby, Marissa Giustina, David Landhuis, Z. Jamie Yao, Kenny Lee, Kunal Arya, Pedram Roushan, Hartmut Neven, Sergei V. Isakov, Andrew Dunsworth, Zijun Chen, Matteo Ippoliti, Matthew Neeley, Nicholas C. Rubin, Austin G. Fowler, Anthony Megrant, Marco Szalay, Trent Huang, Evan Jeffrey, Leon Brill, Justin Iveland, Paul V. Klimov, Matthew D. Trevithick, William Courtney, Nicholas Bushnell, Theodore White, Alexandre Bourassa, E. Lucero, Edward Farhi, Vladimir Shvarts, Dripto M. Debroy, Benjamin Villalonga, Wojciech Mruczkiewicz, Chris Quintana, Juhwan Yoo, Benjamin Chiaro, Dvir Kafri, Brooks Foxen, Vadim Smelyanskiy, Ryan Babbush, Kostyantyn Kechedzhi, Charles Neill, Yu Chen, Andreas Bengtsson, Matt McEwen, A. Opremcak, Kevin C. Miao, Adam Zalcman, Catherine Erickson

Publikováno v: Nature

Quantum many-body systems display rich phase structure in their low-temperature equilibrium states1. However, much of nature is not in thermal equilibrium. Remarkably, it was recently predicted that out-of-equilibrium systems can exhibit novel dynami

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ffaefbf3ae48b2cc950d6d1e5fe8945e
https://doi.org/10.1038/s41586-021-04257-w

Virtual distillation for quantum error mitigation

Autor: Ryan Babbush, Joonho Lee, William J. Huggins, K. Birgitta Whaley, Sam McArdle, Thomas E. O'Brien, Jarrod R. McClean, Sergio Boixo, Nicholas C. Rubin

Publikováno v: Physical Review X, 11(4). American Physical Society (APS)
Physical Review X, Vol 11, Iss 4, p 041036 (2021)

Contemporary quantum computers have relatively high levels of noise, making it difficult to use them to perform useful calculations, even with a large number of qubits. Quantum error correction is expected to eventually enable fault-tolerant quantum

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6700575176f471e3f6cd3fec918dbfa7
http://hdl.handle.net/1887/3278103