Intrinsic coherence dynamics and phase localization in nanoscale Aharonov-Bohm interferometers

Matisse Wei Yuan Tu*, Wei Min Zhang, Jinshuang Jin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

The nonequilibrium real-time dynamics of electron decoherence is explored in the quantum transport through the nanoscale double-dot Aharonov-Bohm interferometers. We solve the exact master equation to find the exact quantum state of the device, from which the changes of the electron coherence through the magnetic flux in the nonequilibrium transport processes is obtained explicitly. We find that the relative phase between the two charge states of the degenerate double dot localizes to π2 or -π2 for all different magnetic fluxes, due to decoherence. This nontrivial decoherence process can be manifested in the measurable occupation numbers.

Original languageAmerican English
Article number115318
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume83
Issue number11
DOIs
StatePublished - 15 Mar 2011
Externally publishedYes

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