Probing Cooper pairs with Franson interferometry

Vittorio Giovannetti; Kazuya Yuasa

doi:10.1103/PhysRevB.86.115429

Probing Cooper pairs with Franson interferometry

Vittorio Giovannetti^*, Kazuya Yuasa

^*Corresponding author for this work

School of Advanced Science and Engineering

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

5 Citations (Scopus)

Abstract

A setup based on the Franson optical interferometer is analyzed, which allows us to detect the coherence properties of Cooper pairs emerging via tunneling from a superconductor in contact with two one-dimensional channels. By tuning the system parameters we show that both the internal coherence of the emitted Cooper pairs, which is proportional to Pippard's length, and the de Broglie wavelength of their center-of-mass motion can be measured via current-current correlation measurements.

Original language	English
Article number	115429
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	86
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevB.86.115429
Publication status	Published - 2012 Sept 19

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.86.115429

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abstract = "A setup based on the Franson optical interferometer is analyzed, which allows us to detect the coherence properties of Cooper pairs emerging via tunneling from a superconductor in contact with two one-dimensional channels. By tuning the system parameters we show that both the internal coherence of the emitted Cooper pairs, which is proportional to Pippard's length, and the de Broglie wavelength of their center-of-mass motion can be measured via current-current correlation measurements.",

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Probing Cooper pairs with Franson interferometry

Abstract

ASJC Scopus subject areas

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