Decoherence in Nearly-Isolated Quantum Dots
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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.
Original language | Undefined/Unknown |
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Journal | Physical Review Letters |
Volume | 87 |
Issue number | 20 |
Pages (from-to) | 2066802 |
Number of pages | 4 |
ISSN | 0031-9007 |
DOIs | |
Publication status | Published - 3 Aug 2000 |
- cond-mat.mes-hall, cond-mat.stat-mech
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ID: 38327148