Mavrogordatos, TK;
Tancredi, G;
Elliott, M;
Peterer, MJ;
Patterson, A;
Rahamim, J;
Leek, PJ;
... Szymańska, MH; + view all
(2017)
Simultaneous Bistability of a Qubit and Resonator in Circuit Quantum Electrodynamics.
Physical Review Letters
, 118
(4)
, Article 040402. 10.1103/PhysRevLett.118.040402.
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Abstract
Published by the American Physical Society.We explore the joint activated dynamics exhibited by two quantum degrees of freedom: a cavity mode oscillator which is strongly coupled to a superconducting qubit in the strongly coherently driven dispersive regime. Dynamical simulations and complementary measurements show a range of parameters where both the cavity and the qubit exhibit sudden simultaneous switching between two metastable states. This manifests in ensemble averaged amplitudes of both the cavity and qubit exhibiting a partial coherent cancellation. Transmission measurements of driven microwave cavities coupled to transmon qubits show detailed features which agree with the theory in the regime of simultaneous switching.
| Type: | Article |
|---|---|
| Title: | Simultaneous Bistability of a Qubit and Resonator in Circuit Quantum Electrodynamics |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.118.040402 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.118.040402 |
| Additional information: | © 2017 American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1531854 |
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