6 papers
Low-Temperature Saturation of the Dephasing Time and Effects of Microwave Radiation on Open Quantum Dots
A. G. Huibers, J. A. Folk, S. R. Patel +3
The dephasing time of electrons in open semiconductor quantum dots, measured using ballistic weak localization, is found to saturate below ~ 100 mK, roughly twice the electron base…
Distributions of the Conductance and its Parametric Derivatives in Quantum Dots
A. G. Huibers, S. R. Patel, C. M. Marcus +3
Full distributions of conductance through quantum dots with single-mode leads are reported for both broken and unbroken time-reversal symmetry. Distributions are nongaussian and ag…
High Bias Transport and Magnetometer Design in Open Quantum Dots
M. Switkes, A. G. Huibers, C. M. Marcus +2
We report transport measurements as a function of bias in open semiconductor quantum dots. These measurements are well described by an effective electron temperature derived from J…
Dephasing in Open Quantum Dots
A. G. Huibers, M. Switkes, C. M. Marcus +2
Shape-averaged magnetoconductance (weak localization) is used for the first time to obtain the electron phase coherence time in open ballistic GaAs quantum dots. Values for $…
Statistics of Coulomb Blockade Peak Spacings
S. R. Patel, S. M. Cronenwett, D. R. Stewart +6
Distributions of Coulomb blockade peak spacing are reported for large ensembles of both unbroken (magnetic field B = 0) and broken (B <> 0) time reversal symmetry in GaAs quantum d…
Quantum Chaos in Open versus Closed Quantum Dots: Signatures of Interacting Particles
C. M. Marcus, S. R. Patel, A. G. Huibers +8
This paper reviews recent studies of mesoscopic fluctuations in transport through ballistic quantum dots, emphasizing differences between conduction through open dots and tunneling…