Decoherence in Nearly-Isolated Quantum Dots
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Decoherence in Nearly-Isolated Quantum Dots. / Folk, J.; M. Marcus, C.; Harris jr, J.
I: Physical Review Letters, Bind 87, Nr. 20, 03.08.2000, s. 2066802.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Decoherence in Nearly-Isolated Quantum Dots
AU - Folk, J.
AU - M. Marcus, C.
AU - Harris jr, J.
PY - 2000/8/3
Y1 - 2000/8/3
N2 - Decoherence in nearly-isolated GaAs quantum dots is investigated using the change in average Coulomb blockade peak height upon breaking time-reversal symmetry. The normalized change in average peak height approaches the predicted universal value of 1/4 at temperatures well below the single-particle level spacing, but is greatly suppressed for temperature greater than the level spacing, suggesting that inelastic scattering or other dephasing mechanisms dominate in this regime.
AB - Decoherence in nearly-isolated GaAs quantum dots is investigated using the change in average Coulomb blockade peak height upon breaking time-reversal symmetry. The normalized change in average peak height approaches the predicted universal value of 1/4 at temperatures well below the single-particle level spacing, but is greatly suppressed for temperature greater than the level spacing, suggesting that inelastic scattering or other dephasing mechanisms dominate in this regime.
KW - cond-mat.mes-hall
KW - cond-mat.stat-mech
U2 - 10.1103/PhysRevLett.87.206802
DO - 10.1103/PhysRevLett.87.206802
M3 - Tidsskriftartikel
C2 - 11690504
VL - 87
SP - 2066802
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 20
ER -
ID: 38327148