Bulletin of the American Physical Society
APS March Meeting 2022
Volume 67, Number 3
Monday–Friday, March 14–18, 2022; Chicago
Session Q37: 3D and Multi-Mode Cavity Devices
3:00 PM–5:48 PM,
Wednesday, March 16, 2022
Room: McCormick Place W-194B
Sponsoring
Unit:
DQI
Chair: Srivatsan Chakram, Rutgers University
Abstract: Q37.00008 : Circuit QED implementation of the non-perturbative boundary sine-Gordon model.*
4:48 PM–5:00 PM
Presenter:
Sebastien Leger
(Institut Neel - Grenoble, France)
Authors:
Sebastien Leger
(Institut Neel - Grenoble, France)
Theo Sepulcre
(Institut Neel - Grenoble, France)
Cecile Naud
(Institut Neel - Grenoble, France)
Olivier Buisson
(Institut Neel - Grenoble, France)
Wiebke Hasch
(Institut Neel - Grenoble, France)
Izak Snyman
(University of Witswatersrand)
Denis Basko
(Laboratoire de Physique et Modélisation des Milieux Condensés - Grenoble, France)
Serge Florens
(Institut Neel - Grenoble, France)
Nicolas Roch
(Institut Neel - Grenoble, France)
To do so, we wire a highly non-linear SQUID, the DOE, to a multi-mode high impedance cavity, the environment (~4000 modes). The use of a SQUID together with our engineered environment enable us to study the BSG problem from the perturbative regime to a regime where the physics involved remains poorly understood. Thanks to our setup, we could measure the renormalization of the SQUID frequency induced by the interplay between its nonlinearity and the strong interaction with its environment. In addition to this, we have also observed the dissipation induced by the SQUID in the environment modes. The dissipation is materialized by highly non-perturbative photon conversion phenomena where a photon inserted in the cavity can reach a 10% probability of decaying after one round trip. Detailed modelling explains both the dissipation and renormalization quantitatively and confirms that the physics involved is highly non-linear, many-body and quantum.
*The speaker thanks the ANR-16-CE24-0005, ANR-14-CE26-0018, ANR-15-IDEX-02 and the CFM foundation.
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700