Quantum Emulation of Coherent Backscattering in a System of Superconducting Qubits
© 2020 American Physical Society. In condensed matter systems, coherent backscattering and quantum interference in the presence of time-reversal symmetry lead to well-known phenomena, such as weak localization (WL) and universal conductance fluctuations (UCFs). Here we use multipass Landau-Zener tra...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society (APS)
2021
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| Online Access: | https://hdl.handle.net/1721.1/135464 |
| _version_ | 1826198940385542144 |
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| author | Gramajo, Ana Laura Campbell, Dan Kannan, Bharath Kim, David K Melville, Alexander Niedzielski, Bethany M Yoder, Jonilyn L Sánchez, María José Domínguez, Daniel Gustavsson, Simon Oliver, William D |
| author2 | Massachusetts Institute of Technology. Research Laboratory of Electronics |
| author_facet | Massachusetts Institute of Technology. Research Laboratory of Electronics Gramajo, Ana Laura Campbell, Dan Kannan, Bharath Kim, David K Melville, Alexander Niedzielski, Bethany M Yoder, Jonilyn L Sánchez, María José Domínguez, Daniel Gustavsson, Simon Oliver, William D |
| author_sort | Gramajo, Ana Laura |
| collection | MIT |
| description | © 2020 American Physical Society. In condensed matter systems, coherent backscattering and quantum interference in the presence of time-reversal symmetry lead to well-known phenomena, such as weak localization (WL) and universal conductance fluctuations (UCFs). Here we use multipass Landau-Zener transitions at the avoided crossing of a highly coherent superconducting qubit to emulate these phenomena. The average and standard deviations of the qubit transition rate exhibit a dip and peak when the driving waveform is time-reversal symmetric, analogous to WL and UCFs, respectively. The higher coherence of this qubit enabled the realization of both effects, in contrast to the earlier work by Gustavsson et al. [Phys. Rev. Lett. 110, 016603 (2013)], who successfully emulated UCFs, but did not observe WL. This demonstration illustrates the use of nonadiabatic control to implement quantum emulation with superconducting qubits. |
| first_indexed | 2024-09-23T11:12:16Z |
| format | Article |
| id | mit-1721.1/135464 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T11:12:16Z |
| publishDate | 2021 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1354642023-09-15T18:42:33Z Quantum Emulation of Coherent Backscattering in a System of Superconducting Qubits Gramajo, Ana Laura Campbell, Dan Kannan, Bharath Kim, David K Melville, Alexander Niedzielski, Bethany M Yoder, Jonilyn L Sánchez, María José Domínguez, Daniel Gustavsson, Simon Oliver, William D Massachusetts Institute of Technology. Research Laboratory of Electronics Lincoln Laboratory Massachusetts Institute of Technology. Department of Physics © 2020 American Physical Society. In condensed matter systems, coherent backscattering and quantum interference in the presence of time-reversal symmetry lead to well-known phenomena, such as weak localization (WL) and universal conductance fluctuations (UCFs). Here we use multipass Landau-Zener transitions at the avoided crossing of a highly coherent superconducting qubit to emulate these phenomena. The average and standard deviations of the qubit transition rate exhibit a dip and peak when the driving waveform is time-reversal symmetric, analogous to WL and UCFs, respectively. The higher coherence of this qubit enabled the realization of both effects, in contrast to the earlier work by Gustavsson et al. [Phys. Rev. Lett. 110, 016603 (2013)], who successfully emulated UCFs, but did not observe WL. This demonstration illustrates the use of nonadiabatic control to implement quantum emulation with superconducting qubits. 2021-10-27T20:23:33Z 2021-10-27T20:23:33Z 2020 2021-03-19T14:31:56Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/135464 en 10.1103/PHYSREVAPPLIED.14.014047 Physical Review Applied Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society (APS) APS |
| spellingShingle | Gramajo, Ana Laura Campbell, Dan Kannan, Bharath Kim, David K Melville, Alexander Niedzielski, Bethany M Yoder, Jonilyn L Sánchez, María José Domínguez, Daniel Gustavsson, Simon Oliver, William D Quantum Emulation of Coherent Backscattering in a System of Superconducting Qubits |
| title | Quantum Emulation of Coherent Backscattering in a System of Superconducting Qubits |
| title_full | Quantum Emulation of Coherent Backscattering in a System of Superconducting Qubits |
| title_fullStr | Quantum Emulation of Coherent Backscattering in a System of Superconducting Qubits |
| title_full_unstemmed | Quantum Emulation of Coherent Backscattering in a System of Superconducting Qubits |
| title_short | Quantum Emulation of Coherent Backscattering in a System of Superconducting Qubits |
| title_sort | quantum emulation of coherent backscattering in a system of superconducting qubits |
| url | https://hdl.handle.net/1721.1/135464 |
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