Modulating quantum transport by transient chaos

Rui Yang; Liang Huang; Ying-Cheng Lai; Louis M. Pecora

doi:10.1063/1.3690046

Modulating quantum transport by transient chaos

Rui Yang, Liang Huang, Ying-Cheng Lai, Louis M. Pecora

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

29 Scopus citations

Abstract

We propose a scheme to modulate quantum transport in nanostructures based on classical chaos. By applying external gate voltage to generate a classically forbidden region, transient chaos can be generated, and the escape rate associated with the underlying non-attracting chaotic set can be varied continuously by adjusting the gate voltage. We demonstrate that this can effectively modulate the quantum conductance-fluctuation patterns. A theory based on self-energies and the spectrum of the generalized non-Hermitian Hamiltonian of the open quantum system is developed to understand the modulation mechanism.

Original language	English (US)
Article number	093105
Journal	Applied Physics Letters
Volume	100
Issue number	9
DOIs	https://doi.org/10.1063/1.3690046
State	Published - Feb 27 2012

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3690046

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title = "Modulating quantum transport by transient chaos",

abstract = "We propose a scheme to modulate quantum transport in nanostructures based on classical chaos. By applying external gate voltage to generate a classically forbidden region, transient chaos can be generated, and the escape rate associated with the underlying non-attracting chaotic set can be varied continuously by adjusting the gate voltage. We demonstrate that this can effectively modulate the quantum conductance-fluctuation patterns. A theory based on self-energies and the spectrum of the generalized non-Hermitian Hamiltonian of the open quantum system is developed to understand the modulation mechanism.",

author = "Rui Yang and Liang Huang and Ying-Cheng Lai and Pecora, {Louis M.}",

note = "Funding Information: This work was supported by AFOSR under Grant No. FA9550-09-1-0260 and by ONR under Grant No. N00014-08-1-0627. L.H. was also supported by NSFC under Grant No. 11005053.",

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AU - Pecora, Louis M.

N1 - Funding Information: This work was supported by AFOSR under Grant No. FA9550-09-1-0260 and by ONR under Grant No. N00014-08-1-0627. L.H. was also supported by NSFC under Grant No. 11005053.

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N2 - We propose a scheme to modulate quantum transport in nanostructures based on classical chaos. By applying external gate voltage to generate a classically forbidden region, transient chaos can be generated, and the escape rate associated with the underlying non-attracting chaotic set can be varied continuously by adjusting the gate voltage. We demonstrate that this can effectively modulate the quantum conductance-fluctuation patterns. A theory based on self-energies and the spectrum of the generalized non-Hermitian Hamiltonian of the open quantum system is developed to understand the modulation mechanism.

AB - We propose a scheme to modulate quantum transport in nanostructures based on classical chaos. By applying external gate voltage to generate a classically forbidden region, transient chaos can be generated, and the escape rate associated with the underlying non-attracting chaotic set can be varied continuously by adjusting the gate voltage. We demonstrate that this can effectively modulate the quantum conductance-fluctuation patterns. A theory based on self-energies and the spectrum of the generalized non-Hermitian Hamiltonian of the open quantum system is developed to understand the modulation mechanism.

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Modulating quantum transport by transient chaos

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