Interaction-enhanced interference effects in a Luttinger liquid

L. Y. Gorelik; I. V. Krive; S. I. Kulinich; R. I. Shekhter; M. Jonson

doi:10.1209/epl/i2002-00476-x

All issues

Volume 57 / No 3 (February 2002)

Europhys. Lett., 57 3 (2002) 409-415

Abstract

Issue		Europhys. Lett. Volume 57, Number 3, February 2002


Page(s)		409 - 415
Section		Condensed matter: electronic structure, electrical, magnetic, and optical properties
DOI		https://doi.org/10.1209/epl/i2002-00476-x
Published online		01 September 2002

Europhys. Lett., 57 (3), pp. 409-415 (2002)

Interaction-enhanced interference effects in a Luttinger liquid

L. Y. Gorelik¹, I. V. Krive¹^,2, S. I. Kulinich¹^,2, R. I. Shekhter¹ and M. Jonson¹

¹ Department of Applied Physics, Chalmers University of Technology and Göteborg University - SE-412 96 Göteborg, Sweden
² B. I. Verkin Institute for Low Temperature Physics and Engineering 47 Lenin Avenue, 310164 Kharkov, Ukraine

Received: 8 June 2001
Accepted: 13 November 2001

Abstract

Microwave-induced interchannel electron transitions in a Luttinger liquid irradiated by an ac electromagnetic field are considered. It is shown that oscillations in the power absorption caused by the interference of charge transport along the two channels are controlled by the effective coupling strength $\kappa=V_0/\pi\hbar(v_{1\ab{F}}-v_{2\ab{F}})$ , which strongly depends on the difference between the Fermi velocities $v_{1\ab{F}}\neq v_{2\ab{F}}$ in the channels. Interactions always enhance the interference effects induced by forward-scattering interchannel electron transitions. A novel regime of the statistical behavior of the fluctuations in power absorption is predicted.

PACS: 71.10.Pm – Fermions in reduced dimensions (anyons, composite fermions, Luttinger liquid, etc.) / 71.27.+a – Strongly correlated electron systems; heavy fermions / 85.35.Ds – Quantum interference devices

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