Quantum capacitive phase detector

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Journal Title
Journal ISSN
Volume Title
School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2005
Major/Subject
Mcode
Degree programme
Language
en
Pages
024530/1-5
Series
Physical Review B, Volume 71, Issue 2
Abstract
We discuss how a single Cooper-pair transistor may be used to detect the superconducting phase difference by using the phase dependence of the input capacitance from gate to ground. The proposed device has a low power dissipation because its operation is in principle free from quasiparticle generation. According to the sensitivity estimates, the device may be used for efficient qubit readout in a galvanically isolated and symmetrized circuit.
Description
Keywords
Cooper-pair transistors, superconductivity, single-electron transistors, tunnel junctions
Other note
Citation
Roschier, Leif & Sillanpää, Mika A. & Hakonen, Pertti. 2005. Quantum capacitive phase detector. Physical Review B. Volume 71, Issue 2. 024530/1-5. ISSN 1098-0121 (printed). DOI: 10.1103/physrevb.71.024530.