Transport through Quasiballistic Quantum Wires: The Role of Contacts

Lal, Siddhartha and Rao, Sumathi and Sen, Diptiman (2001) Transport through Quasiballistic Quantum Wires: The Role of Contacts. In: Physical Review Letters, 87 (2). 026801.

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Abstract

We model one-dimensional transport through each open channel of a quantum wire by a Luttinger liquid with different interaction parameters for the leads, the contacts, and the wire, and with two barriers at the contacts. We show that this simple model explains several features of recent experiments, such as the flat conductance plateaus observed at finite temperatures and lengths, and universal conductance corrections in different channels. We discuss the possibility of seeing resonance like features at very low temperatures.

Item Type:	Journal Article
Publication:	Physical Review Letters
Publisher:	American Physical Society (APS)
Additional Information:	The DOI is currently only displayed. Copyright for this article belongs to American Physical Society (APS)
Department/Centre:	Division of Physical & Mathematical Sciences > Centre for Theoretical Studies (Ceased to exist at the end of 2003)
Date Deposited:	07 Jun 2004
Last Modified:	19 Sep 2010 04:12
URI:	http://eprints.iisc.ac.in/id/eprint/258

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