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Partially Coherent Conductance of Laterally Quantized Quantum Wires
Author(s) -
Knittel I.,
Schreiber M.
Publication year - 2000
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200010)221:2<667::aid-pssb667>3.0.co;2-3
Subject(s) - conductance , quantum , coherence (philosophical gambling strategy) , phase coherence , physics , transmission (telecommunications) , logarithm , momentum (technical analysis) , conductance quantum , coherence length , condensed matter physics , phase (matter) , quantum mechanics , quantum wire , mathematics , quantum point contact , quantum well , mathematical analysis , engineering , telecommunications , laser , superconductivity , finance , economics
The transmission of partially coherent disordered quantum wires with few conducting modes is investigated. A wire is modeled as a system of interconnected scatterers within Landauer‐Bttiker theory, implementing a finite phase coherence length by fictitious, momentum‐conserving reservoirs. The average logarithmic transmission and the damping of conductance fluctuations can be understood analytically, what may be relevant for the estimation of the phase coherence length in the nonuniversal regime.