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Comment on ``Quantum Pump for Spin and Charge Transport in a Luttinger Liquid''

Dima E. Feldman·Yuval Gefen
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Abstract

This is a Comment to the paper by Sharma and Chamon in Phys. Rev. Lett. 87 (2001) 096401 (cond-mat/0011025). We show that the prediction of the universal charge pumped per cycle in the fast limit for attractive electron-electron interaction is invalid. We also prove the quantization of the pumped charge for repulsive interaction in the limit of adiabatic pumping.

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Dima E. Feldman, Yuval Gefen. 2001-11-21. Comment on ``Quantum Pump for Spin and Charge Transport in a Luttinger Liquid''. https://arxiv.org/abs/cond-mat/0111411

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