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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ArXiv ePrint: 1505.05275
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Kimura, T., Murata, M. Transport process in multi-junctions of quantum systems. J. High Energ. Phys. 2015, 72 (2015). https://doi.org/10.1007/JHEP07(2015)072
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DOI: https://doi.org/10.1007/JHEP07(2015)072