Artículo
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; Yoder, Jonilyn L.; Sánchez, María José
; Domínguez, Daniel
; Gustavsson, Simon; Oliver, William D.
Fecha de publicación:
07/2020
Editorial:
American Physical Society
Revista:
Physical Review Applied
ISSN:
2331-7019
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
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.
Palabras clave:
QUBITS
,
EMULATION
,
SUPERCONDUCTING
,
COHERENT
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Articulos (UE-INN - NODO BARILOCHE)
Articulos de UNIDAD EJECUTORA INSTITUTO DE NANOCIENCIA Y NANOTECNOLOGIA - NODO BARILOCHE
Articulos de UNIDAD EJECUTORA INSTITUTO DE NANOCIENCIA Y NANOTECNOLOGIA - NODO BARILOCHE
Citación
Gramajo, Ana Laura; Campbell, Dan; Kannan, Bharath; Kim, David K.; Melville, Alexander; et al.; Quantum Emulation of Coherent Backscattering in a System of Superconducting Qubits; American Physical Society; Physical Review Applied; 14; 1; 7-2020; 1-14
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