Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Nicholas C. Rubin"'
Autor:
Andrew Zhao, Nicholas C. Rubin
Publikováno v:
Quantum, Vol 8, p 1451 (2024)
Quadratic programming over orthogonal matrices encompasses a broad class of hard optimization problems that do not have an efficient quantum representation. Such problems are instances of the little noncommutative Grothendieck problem (LNCG), a gener
Externí odkaz:
https://doaj.org/article/d37479c542d34096a4510cc1ca206f1d
Publikováno v:
Quantum, Vol 8, p 1422 (2024)
We introduce a quantum information theory-inspired method to improve the characterization of many-body Hamiltonians on near-term quantum devices. We design a new class of similarity transformations that, when applied as a preprocessing step, can subs
Externí odkaz:
https://doaj.org/article/88599f72b60748e9914e0da676281806
Autor:
Nicholas C. Rubin, Dominic W. Berry, Fionn D. Malone, Alec F. White, Tanuj Khattar, A. Eugene DePrince, III, Sabrina Sicolo, Michael Küehn, Michael Kaicher, Joonho Lee, Ryan Babbush
Publikováno v:
PRX Quantum, Vol 4, Iss 4, p 040303 (2023)
The simulation of chemistry is among the most promising applications of quantum computing. However, most prior work exploring algorithms for block encoding, time evolving, and sampling in the eigenbasis of electronic structure Hamiltonians has either
Externí odkaz:
https://doaj.org/article/f8e3a4162e3e4422bbf6b031f80590b1
Autor:
William J. Huggins, Jarrod R. McClean, Nicholas C. Rubin, Zhang Jiang, Nathan Wiebe, K. Birgitta Whaley, Ryan Babbush
Publikováno v:
npj Quantum Information, Vol 7, Iss 1, Pp 1-9 (2021)
Abstract Variational algorithms are a promising paradigm for utilizing near-term quantum devices for modeling electronic states of molecular systems. However, previous bounds on the measurement time required have suggested that the application of the
Externí odkaz:
https://doaj.org/article/53bda328a4dc416fa079f947a881d8b8
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
Fault-tolerant quantum computation is still far, but there could be ways in which quantum error correction could improve currently available devices. Here, the authors show how to exploit existing quantum codes through only post-processing and random
Externí odkaz:
https://doaj.org/article/d2608a6c9b214b8fad01948f48bffe43
Autor:
Thomas E. O'Brien, Michael Streif, Nicholas C. Rubin, Raffaele Santagati, Yuan Su, William J. Huggins, Joshua J. Goings, Nikolaj Moll, Elica Kyoseva, Matthias Degroote, Christofer S. Tautermann, Joonho Lee, Dominic W. Berry, Nathan Wiebe, Ryan Babbush
Publikováno v:
Physical Review Research, Vol 4, Iss 4, p 043210 (2022)
While most work on the quantum simulation of chemistry has focused on computing energy surfaces, a similarly important application requiring subtly different algorithms is the computation of energy derivatives. Almost all molecular properties can be
Externí odkaz:
https://doaj.org/article/5cede1d0c45840d6b4389cabde88e8f9
Autor:
Ruslan N. Tazhigulov, Shi-Ning Sun, Reza Haghshenas, Huanchen Zhai, Adrian T.K. Tan, Nicholas C. Rubin, Ryan Babbush, Austin J. Minnich, Garnet Kin-Lic Chan
Publikováno v:
PRX Quantum, Vol 3, Iss 4, p 040318 (2022)
Simulating complex molecules and materials is an anticipated application of quantum devices. With the emergence of hardware designed to target strong quantum advantage in artificial tasks, we examine how the same hardware behaves in modeling physical
Externí odkaz:
https://doaj.org/article/cfa8a768f6ee40d4b51c1246c4475cec
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
Autor:
Nicholas C. Rubin, Klaas Gunst, Alec White, Leon Freitag, Kyle Throssell, Garnet Kin-Lic Chan, Ryan Babbush, Toru Shiozaki
Publikováno v:
Quantum, Vol 5, p 568 (2021)
The fermionic quantum emulator (FQE) is a collection of protocols for emulating quantum dynamics of fermions efficiently taking advantage of common symmetries present in chemical, materials, and condensed-matter systems. The library is fully integrat
Externí odkaz:
https://doaj.org/article/3467d31f62f8456b803d8bd9b8c375b6
Autor:
Jarrod R. McClean, Matthew P. Harrigan, Masoud Mohseni, Nicholas C. Rubin, Zhang Jiang, Sergio Boixo, Vadim N. Smelyanskiy, Ryan Babbush, Hartmut Neven
Publikováno v:
PRX Quantum, Vol 2, Iss 3, p 030312 (2021)
One of the major application areas of interest for both near-term and fault-tolerant quantum computers is the optimization of classical objective functions. In this work, we develop intuitive constructions for a large class of these algorithms based
Externí odkaz:
https://doaj.org/article/7fb2818fe83446d5b9f97389fbef55e7