Published February 2010
| Version v1
Journal article
Relaxation of a qubit measured by a driven Duffing oscillator
- 1. Instituut Lorentz, Leiden University, Niels Bohrweg 2, NL-2333 CA Leiden (Netherlands)
- 2. Department Physik, Arnold-Sommerfeld-Center for Theoretical Physics, and Center for Nanoscience, Ludwig-Maximilians-Universitaet, Theresienstrasse 37, D-80333 Muenchen (Germany)
- 3. IQC and Deptartment of Physics and Astronomy, University of Waterloo, 200 University Avenue W, Waterloo, Ontario N2L 3G1 (Canada)
- 4. Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824 (United States)
Description
We investigate the relaxation of a superconducting qubit for the case when its detector, the Josephson bifurcation amplifier, remains latched in one of its two (meta)stable states of forced vibrations. The qubit relaxation rates are different in different states. They can display strong dependence on the qubit frequency and resonant enhancement, which is due to quasienergy resonances. Coupling to the driven oscillator changes the effective temperature of the qubit.
Additional details
Identifiers
- DOI
- 10.1103/PhysRevA.81.022305;
- arXiv
- arXiv:0907.5181v2;
Publishing Information
- Journal Title
- Physical Review. A
- Journal Volume
- 81
- Journal Issue
- 2
- Journal Page Range
- p. 022305-022305.7
- ISSN
- 1050-2947
- CODEN
- PLRAAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 42001358
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- AMPLIFIERS; BIFURCATION; COUPLING; METASTABLE STATES; OSCILLATORS; RELAXATION; RESONANCE
- Descriptors DEC
- ELECTRONIC EQUIPMENT; ENERGY LEVELS; EQUIPMENT; EXCITED STATES
Optional Information
- Notes
- (c) 2010 The American Physical Society