Dissipationless electron transport in photon-dressed nanostructures

Details Dissipationless electron transport in photon-dressed nanostructures Dissipationless electron transport in photon-dressed nanostructures

2011-03-04

arxiv.org/abs/1103.0950v2

Phys. Rev. Lett. 107, 106802 (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages; 1 figure; published version

Scientific paper

10.1103/PhysRevLett.107.106802

It is shown that the electron coupling to photons in field-dressed nanostructures can result in the ground electron-photon state with a nonzero electric current. Since the current is associated with the ground state, it flows without the Joule heating of the nanostructure and is nondissipative. Such a dissipationless electron transport can be realized in strongly coupled electron-photon systems with the broken time-reversal symmetry - particularly, in quantum rings and chiral nanostructures dressed by circularly polarized photons.

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