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Philosophical Magazine B Volume 81, 2001 - Issue 10
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Original Articles

Response of an electron system to a periodic potential

S. Nagy Department of Theoretical Physics, University of Debrecen, Poroszlay út, 6/c PO Box 5, Debrecen, Hungary
&
K. Sailer Department of Theoretical Physics, University of Debrecen, Poroszlay út, 6/c PO Box 5, Debrecen, Hungary
Pages 1583-1586 | Received 11 Dec 2000, Accepted 23 Jan 2001, Published online: 25 Aug 2009
 

Abstract

We give a quantum field theoretical treatment of a one-dimensional electron system with a fixed chemical potential μ. The non-perturbative Lindhard response function is found for an electron system in a sinusoidal potential.

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