Phonon-induced 2e--tunneling in GaAS quantum dots

Yi Wan; Gerardo Ortiz; Philip Phillips

doi:10.1080/10587259608037857

Phonon-induced 2e^--tunneling in GaAS quantum dots

Yi Wan, Gerardo Ortiz, Philip Phillips

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

Abstract

In this paper, we give a brief account of pair-tunneling in GaAs quantum dots. We show that while GaAs is a weakly-polar semiconductor, coupling to optical phonons is sufficiently strong to mediate a negative-U pairing state. As a result, two electrons can tunnel coherently from the source lead to the quantum dot as a Cooper pair would across a Josephson junction. PACS numbers:73.20.Dx,71.38.+i,72.20.My,72.10.-d.

Original language	English (US)
Pages (from-to)	11-16
Number of pages	6
Journal	Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume	283
DOIs	https://doi.org/10.1080/10587259608037857
State	Published - 1996

ASJC Scopus subject areas

Condensed Matter Physics

Online availability

10.1080/10587259608037857

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Cite this

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title = "Phonon-induced 2e--tunneling in GaAS quantum dots",

abstract = "In this paper, we give a brief account of pair-tunneling in GaAs quantum dots. We show that while GaAs is a weakly-polar semiconductor, coupling to optical phonons is sufficiently strong to mediate a negative-U pairing state. As a result, two electrons can tunnel coherently from the source lead to the quantum dot as a Cooper pair would across a Josephson junction. PACS numbers:73.20.Dx,71.38.+i,72.20.My,72.10.-d.",

author = "Yi Wan and Gerardo Ortiz and Philip Phillips",

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AU - Ortiz, Gerardo

AU - Phillips, Philip

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AB - In this paper, we give a brief account of pair-tunneling in GaAs quantum dots. We show that while GaAs is a weakly-polar semiconductor, coupling to optical phonons is sufficiently strong to mediate a negative-U pairing state. As a result, two electrons can tunnel coherently from the source lead to the quantum dot as a Cooper pair would across a Josephson junction. PACS numbers:73.20.Dx,71.38.+i,72.20.My,72.10.-d.

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