Abstract
We present a theory of negative Coulomb drag in capacitively coupled quantum wires based on the commensurability of the electron density and the long-range nature of the Coulomb interaction in the Tomonaga-Luttinger liquid. The commensurability introduces a notion of doped particles and holes. We point out that the long-range interaction allows a particle-hole pairing over the wires and that the particle-hole pairing brings about the positive drag of holes, that is, the negative drag.
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