Ultrastrong coupling in two-resonator circuit QED
Resumen: We report on ultrastrong coupling between a superconducting flux qubit and a resonant mode of a system comprised of two superconducting coplanar stripline resonators coupled galvanically to the qubit. With a coupling strength as high as 17.5% of the mode frequency, exceeding that of previous circuit quantum electrodynamics experiments, we observe a pronounced Bloch-Siegert shift. The spectroscopic response of our multimode system reveals a clear breakdown of the Jaynes-Cummings approximation. In contrast to earlier experiments, the high coupling strength is achieved without making use of an additional inductance provided by a Josephson junction.
Idioma: Inglés
DOI: 10.1103/PhysRevB.93.214501
Año: 2016
Publicado en: Physical Review B. Condensed Matter and Materials Physics 93, 21 (2016), 214501 [8 pp]
ISSN: 1098-0121

Factor impacto JCR: 3.836 (2016)
Categ. JCR: PHYSICS, CONDENSED MATTER rank: 18 / 67 = 0.269 (2016) - Q2 - T1
Factor impacto SCIMAGO: 2.339 - Electronic, Optical and Magnetic Materials (Q1) - Condensed Matter Physics (Q1)

Financiación: info:eu-repo/grantAgreement/ES/MINECO/FIS2012-33022
Financiación: info:eu-repo/grantAgreement/ES/MINECO/FIS2012-36673-C03-02
Financiación: info:eu-repo/grantAgreement/ES/MINECO/FIS2014-55867-P
Financiación: info:eu-repo/grantAgreement/ES/MINECO/MAT2014-53432-C5
Tipo y forma: Article (PostPrint)
Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)

Creative Commons You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

Exportado de SIDERAL (2020-02-21-13:11:34)

Este artículo se encuentra en las siguientes colecciones:

 Record created 2016-07-12, last modified 2020-02-21

Rate this document:

Rate this document:
(Not yet reviewed)