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Phys. Rev. B 73, 155318 (2006) [5 pages]

Energy dissipation of electron solitons in a quantum well

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S. Bednarek and B. Szafran
Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, PL-30059 Kraków, Poland

Received 5 January 2006; revised 3 February 2006; published 18 April 2006

A linear response theory is provided for the dynamic interaction effects of an electron soliton confined in semiconductor quantum well with a conducting surface or a two-dimensional electron gas. It is shown that the soliton-electron-gas effective potential contains a dissipative component resisting against changes of the soliton charge density. Due to the energy dissipation moving solitons are stopped and the nonstationary excitations of the wave packet relax to the standing ground state.

© 2006 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.73.155318
DOI:
10.1103/PhysRevB.73.155318
PACS:
73.63.Hs, 05.45.Yv, 05.60.Gg