Quantum capacitive phase detector

Leif Roschier; Mika Sillanpää; Pertti Hakonen

doi:10.1103/PhysRevB.71.024530

Quantum capacitive phase detector

Leif Roschier, Mika Sillanpää, Pertti Hakonen

Aalto University

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

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.

Original language	English
Article number	024530
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	71
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevB.71.024530
Publication status	Published - Jan 2005
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.71.024530

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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.",

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AB - 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.

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Quantum capacitive phase detector

Abstract

ASJC Scopus subject areas

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