TY - JOUR
T1 - Intrinsic coherence dynamics and phase localization in nanoscale Aharonov-Bohm interferometers
AU - Tu, Matisse Wei Yuan
AU - Zhang, Wei Min
AU - Jin, Jinshuang
PY - 2011/3/15
Y1 - 2011/3/15
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=79961085855&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.83.115318
DO - 10.1103/PhysRevB.83.115318
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AN - SCOPUS:79961085855
SN - 1098-0121
VL - 83
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 11
M1 - 115318
ER -