Transport process in multi-junctions of quantum systems

Taro Kimura; Masaki Murata

doi:10.1007/JHEP07(2015)072

Transport process in multi-junctions of quantum systems

Taro Kimura, Masaki Murata

Faculty of Economics

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

3 Citations (Scopus)

Abstract

Abstract: We consider the junction of multiple one-dimensional systems and study how conserved currents transport at the junction. To characterize the transport process, we introduce reflection/transmission coefficients by applying boundary conformal field theory. We compute the reflection/transmission coefficients for some examples to derive the closed formulas. The formulas demonstrate spin-flip transport, where the spin polarization is flipped at the junction.

Original language	English
Article number	72
Journal	Journal of High Energy Physics
Volume	2015
Issue number	7
DOIs	https://doi.org/10.1007/JHEP07(2015)072
Publication status	Published - 2015 Jul 25

Keywords

Boundary Quantum Field Theory
Conformal and W Symmetry
Field Theories in Lower Dimensions

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1007/JHEP07(2015)072

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abstract = "Abstract: We consider the junction of multiple one-dimensional systems and study how conserved currents transport at the junction. To characterize the transport process, we introduce reflection/transmission coefficients by applying boundary conformal field theory. We compute the reflection/transmission coefficients for some examples to derive the closed formulas. The formulas demonstrate spin-flip transport, where the spin polarization is flipped at the junction.",

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N2 - Abstract: We consider the junction of multiple one-dimensional systems and study how conserved currents transport at the junction. To characterize the transport process, we introduce reflection/transmission coefficients by applying boundary conformal field theory. We compute the reflection/transmission coefficients for some examples to derive the closed formulas. The formulas demonstrate spin-flip transport, where the spin polarization is flipped at the junction.

AB - Abstract: We consider the junction of multiple one-dimensional systems and study how conserved currents transport at the junction. To characterize the transport process, we introduce reflection/transmission coefficients by applying boundary conformal field theory. We compute the reflection/transmission coefficients for some examples to derive the closed formulas. The formulas demonstrate spin-flip transport, where the spin polarization is flipped at the junction.

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KW - Conformal and W Symmetry

KW - Field Theories in Lower Dimensions

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