Decoherence in nearly isolated quantum dots.
نویسندگان
چکیده
Decoherence in nearly isolated GaAs quantum dots is investigated using the change in the average Coulomb blockade peak height when time-reversal symmetry is broken. The normalized change in the average peak height approaches the predicted universal value of 1/4 at temperatures well below the single-particle level spacing, T < Delta, but is greatly suppressed for T > Delta, suggesting that inelastic scattering or other dephasing mechanisms dominate in this regime.
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ورودعنوان ژورنال:
- Physical review letters
دوره 87 20 شماره
صفحات -
تاریخ انتشار 2001