Nondissipative electron transport in photon-dressed nanostructures O.V. Kibis Novosibirsk State...

Nondissipative electron transport in photon-dressed nanostructures

O.V. Kibis

Novosibirsk State Technical University, Russia

Effect Rabi

Isidor Isaac RabiNobel Prize in Physics (1944)

atCbtC ab )()(

I. Rabi, Phys. Rev. 51, 562 (1937).

tsin0EE

ab

RdE0

1 R

O.V. Kibis Nondissipative electron transport in photon-dressed nanostructures

2/0

2sin)( tiR

a et

tC

2/0

2cos)( tiR

b et

tC

ttC R

a 2sin)( 22

ttC R

b 2cos)( 22

Quantum optics of field-dressed nanostructures

O.V. Kibis, G.Ya. Slepyan, S.A. Maksimenko, A. Hoffmann “Matter coupling to strong electromagnetic fields in two-level quantum systems with broken inversion symmetry” — Physical Review Letters 102, 023601 (2009).

O.V. Kibis “Metal-insulator transition in graphene induced by circularly polarized photons” — Physical Review B 81, 165433 (2010).

O.V. Kibis, O. Kyriienko, I.A. Shelykh “Band gap in graphene induced by vacuum fluctuations” — Physical Review B 84, 195413 (2011).


The classical-field Hamiltonian of a quantum wire


The quantum-field Hamiltonian of a quantum wire



A quantum ring dressed by circularly polarized photons

The full energy of the electron-photon system


The energy spectrum of field-dressed electrons in the quantum ring


The energy spectrum of electrons in the quantum ring dressed by the quantized circularly polarized field (heavy lines) and without the field (thin lines). The nondissipative current j corresponds to the filled states (↑↓)


A quantum helix subjected to a circularly polarized field

The Hamiltonian of the field-dressed helix


The energy spectrum of electrons in the quantum helix dressed by the quantized circularly polarized field (heavy lines) and without the field (thin lines). The nondissipative currentj correspond to the filled states lying under the Fermi energy μ.

The theory of resonant interaction of electromagnetic fields with semiconductors


Виктор Михайлович Галицкий(1924-1981)

В.М. Галицкий, С.П. Гореславский, В.Ф. Елесин, ЖЭТФ 57, 207 (1969).

В.М. Галицкий, В.Ф. Елесин «Резонансное взаимодействие электромагнитных полей с полупроводниками» (М.: Энергоатомиздат, 1986. – 192 с. )


The photovoltaic effect in a quantum helix subjected to a circularly polarized electromagnetic wave

О.В. Кибис, Д.А. Романов, ФТТ 37, 127 (1995).Л.И. Магарилл, М.В. Энтин, Письма в ЖЭТФ 78, 249 (2003).M.V. Entin, L.I. Magarill, Phys. Rev. B 81, 073305 (2010).

The nondissipative electron transport in a quantum helix subjected to a circularly polarized electromagnetic wave

O.V. Kibis, Phys. Rev. Lett. 107, 106802 (2011).


Model of the laser beam

C. Cohen-Tannoudji, J. Dupont-Roc, G. Grynberg “Atom-photon interactions. Basic principles and applications” (Wiley-VCH, Weinheim, 2004).


Summary

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 thenanostructure 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.

Nondissipative electron transport in photon-dressed nanostructures O.V. Kibis Novosibirsk State...

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