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Minimal Excitation States of Electrons in One-Dimensional Wires

Keeling, J. and Klich, I. and Levitov, L. S. (2006) Minimal Excitation States of Electrons in One-Dimensional Wires. Physical Review Letters, 97 (11). Art. No. 116403. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:KEEprl06

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Abstract

A strategy is proposed to excite particles from a Fermi sea in a noise-free fashion by electromagnetic pulses with realistic parameters. We show that by using quantized pulses of simple form one can suppress the particle-hole pairs which are created by a generic excitation. The resulting many-body states are characterized by one or several particles excited above the Fermi surface accompanied by no disturbance below it. These excitations carry charge which is integer for noninteracting electron gas and fractional for Luttinger liquid. The operator algebra describing these excitations is derived, and a method of their detection which relies on noise measurement is proposed.


Item Type:Article
Additional Information:©2006 The American Physical Society (Received 1 April 2006; published 14 September 2006) This work was supported by NSF-NIRT DMR-0304019; J.K. acknowledges financial support from the Lindemann Trust.
Record Number:CaltechAUTHORS:KEEprl06
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:KEEprl06
Alternative URL:http://dx.doi.org/10.1103/PhysRevLett.97.116403
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5356
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:13 Oct 2006
Last Modified:18 Sep 2014 18:11

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