Decoherence in circuits of small Josephson junctions
- 10 October 2001
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 64 (17), 172509
- https://doi.org/10.1103/physrevb.64.172509
Abstract
We discuss dephasing by the dissipative electromagnetic environment and by measurement in circuits consisting of small Josephson junctions. We present quantitative estimates and determine in which case the circuit might qualify as a quantum bit. Specifically, we analyze a three junction Cooper pair pump and discuss a measurement to determine the decoherence time
Keywords
All Related Versions
This publication has 18 references indexed in Scilit:
- Quantum-state engineering with Josephson-junction devicesReviews of Modern Physics, 2001
- Arrays of Josephson junctions in an environment with vanishing impedancePhysical Review B, 2000
- Adiabatic transport of Cooper pairs in arrays of Josephson junctionsPhysical Review B, 1999
- Coherent control of macroscopic quantum states in a single-Cooper-pair boxNature, 1999
- Josephson-junction qubits with controlled couplingsNature, 1999
- The Radio-Frequency Single-Electron Transistor (RF-SET): A Fast and Ultrasensitive ElectrometerScience, 1998
- Adiabatic quantum computation with Cooper pairsSolid State Communications, 1998
- Experimental evidence for parity-based 2eperiodicity in a superconducting single-electron tunneling transistorPhysical Review Letters, 1992
- Single electron tunneling rates in multijunction circuitsZeitschrift für Physik B Condensed Matter, 1991
- Effect of the electromagnetic environment on the Coulomb blockade in ultrasmall tunnel junctionsPhysical Review Letters, 1990