| Issue |
Europhys. Lett.
Volume 53, Number 2, January 2001
|
|
|---|---|---|
| Page(s) | 251 - 256 | |
| Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
| DOI | https://doi.org/10.1209/epl/i2001-00145-8 | |
| Published online | 01 December 2003 | |
Coherent oscillations in a Cooper-pair box
1
Departement Physik und Astronomie, Universität Basel
Klingelbergstrasse 82, CH-4056 Basel, Switzerland
2
Korea Institute for Advanced Study - Cheongryangri-dong 207-43
Seoul 130-012, South Korea
3
Dipartimento di Metodologie Fisiche e Chimiche (DMFCI),
Università di Catania viale A. Doria 6, I-95125 Catania,
Italy
4
Istituto Nazionale per la Fisica della Materia (INFM),
Unità di Catania Catania, Italy
Received:
26
September
2000
Accepted:
9
November
2000
This paper is devoted to an analysis of the experiment by Nakamura et al. (Nature 398 (1999) 786) on the quantum state control in Josephson junctions devices. By considering the relevant processes involved in the detection of the charge state of the box and a realistic description of the gate pulse, we are able to analyze some aspects of the experiment (like the amplitude of the measurement current) in a quantitative way.
PACS: 74.50.+r – Proximity effects, weak links, tunneling phenomena, and Josephson effects / 73.23.Hk – Coulomb blockade; single-electron tunneling / 03.67.Lx – Quantum computation
© EDP Sciences, 2001
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