Quantum fluctuation theorem for error diagnostics in quantum annealers
| dc.contributor.author | Gardas, Bartłomiej | |
| dc.contributor.author | Deffner, Sebastian | |
| dc.date.accessioned | 2020-08-13T16:03:19Z | |
| dc.date.available | 2020-08-13T16:03:19Z | |
| dc.date.issued | 2018-11-21 | |
| dc.description.abstract | Near term quantum hardware promises unprecedented computational advantage. Crucial in its development is the characterization and minimization of computational errors. We propose the use of the quantum fluctuation theorem to benchmark the accuracy of quantum annealers. This versatile tool provides simple means to determine whether the quantum dynamics are unital, unitary, and adiabatic, or whether the system is prone to thermal noise. Our proposal is experimentally tested on two generations of the D-Wave machine, which illustrates the sensitivity of the fluctuation theorem to the smallest aberrations from ideal annealing. In addition, for the optimally operating D-Wave machine, our experiment provides the first experimental verification of the integral fluctuation in an interacting, many-body quantum system. | en_US |
| dc.description.sponsorship | We appreciate stimulating and insightful discussions with Edward Dahl of D-Wave Systems and Daniel Lidar. B.G. was supported by Narodowe Centrum Nauki under Project No. 2016/20/S/ST2/00152 and QuantERA program 2017/25/Z/ST2/03028. Tis research was supported in part by PL-Grid Infrastructure. SD acknowledges support by the U.S. National Science Foundation under Grant No. CHE-1648973. | en_US |
| dc.description.uri | https://www.nature.com/articles/s41598-018-35264-z | en_US |
| dc.format.extent | 8 pages | en_US |
| dc.genre | journal articles | en_US |
| dc.identifier | doi:10.13016/m2dnnc-0frj | |
| dc.identifier.citation | Gardas, B., Deffner, S. Quantum fluctuation theorem for error diagnostics in quantum annealers. Sci Rep 8, 17191 (2018). https://doi.org/10.1038/s41598-018-35264-z | en_US |
| dc.identifier.uri | https://doi.org/10.1038/s41598-018-35264-z | |
| dc.identifier.uri | http://hdl.handle.net/11603/19418 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | Springer Nature | en_US |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Physics Department Collection | |
| dc.relation.ispartof | UMBC Joint Center for Earth Systems Technology (JCET) | |
| dc.relation.ispartof | UMBC Faculty Collection | |
| dc.rights | This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author. | |
| dc.rights | Attribution 4.0 International | * |
| dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | * |
| dc.title | Quantum fluctuation theorem for error diagnostics in quantum annealers | en_US |
| dc.type | Text | en_US |