Observation of Quantum Fluctuations of Charge on a Quantum Dot
arXiv:cond-mat/9803373 · doi:10.1103/PhysRevLett.82.161
Abstract
We have incorporated an aluminum single electron transistor directly into the defining gate structure of a semiconductor quantum dot, permitting precise measurement of the charge in the dot. Voltage biasing a gate draws charge from a reservoir into the dot through a single point contact. The charge in the dot increases continuously for large point contact conductance and in a step-like manner in units of single electrons with the contact nearly closed. We measure the corresponding capacitance lineshapes for the full range of point contact conductances. The lineshapes are described well by perturbation theory and not by theories in which the dot charging energy is altered by the barrier conductance.
arXiv commentRevtex, 5 pages, 3 figures, few minor corrections to the references
References in corpus (6)
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- Coulomb blockade at almost perfect transmission
- Scaling Of The Coulomb Energy Due To Quantum Fluctuations In The Charge Of A Quantum Dot
- Mesoscopic charge quantization
- Coulomb Blockade of Tunneling Through a Double Quantum Dot
- Coulomb blockade oscillations of conductance in the regime of strong tunneling
Cited by in corpus (51)
- The Statistical Theory of Quantum Dots
- Quantum Effects in Coulomb Blockade
- A Graphene Quantum Dot with a Single Electron Transistor as Integrated Charge Sensor
- Universal Resistances of the Quantum RC circuit
- Charge Distribution in a Kondo Correlated Quantum Dot
- Occupation of a resonant level coupled to a chiral Luttinger liquid
- Coulomb blockade of a noisy metallic box: A realization of Bose-Fermi Kondo models
- Unification of electromagnetic noise and Luttinger liquid via a quantum dot
- Resonant tunneling and the multichannel Kondo problem: the quantum Brownian motion description
- Controlling charge quantization with quantum fluctuations
- Coulomb Blockade Fluctuations in Strongly Coupled Quantum Dots
- Capacitance of a quantum dot from the channel-anisotropic two-channel Kondo model
- Smearing of charge fluctuations in a grain by spin-flip assisted tunneling
- The Coulomb Blockade in Quantum Boxes
- Maximized Orbital and Spin Kondo effects in a single-electron transistor
- Multi-channel Kondo Models in non-Abelian Quantum Hall Droplets
- Coulomb Blockade in an Open Quantum Dot
- Thermodynamics of the anisotropic two-channel Kondo problem
- Enhancement of the Two-channel Kondo Effect in Single-Electron boxes
- Quantum trajectories for the realistic measurement of a solid-state charge qubit
- Observing the universal screening of a Kondo impurity
- Mesoscopic Kondo Problem
- Strongly correlated dynamics in multichannel quantum RC circuits
- Two-loop approximation in the Coulomb blockade problem
- Consistent bosonization-debosonization II: The two-lead Kondo problem and the fate of its non-equilibrium Toulouse point
- Prediction of the capacitance lineshape in two-channel quantum dots
- Orbital fluctuations and strong correlations in quantum dots
- Probing dynamics of Majorana fermions in quantum impurity systems
- Smearing of Coulomb Blockade by Resonant Tunneling
- Capacitance of a resonant level coupled to Luttinger liquids
- Noncrossing Approximation for the Anisotropic Kondo Model: Charge Fluctuations in a Quantum Box
- Zeeman smearing of the Coulomb blockade
- Mapping of the Anisotropic Two-channel Anderson Model onto a Fermi-Majorana bi-Resonant Level Model
- Quantum phase transitions in a resonant-level model with dissipation: Renormalization-group studies
- Charge-Kondo Effect in Mesoscopic Superconductors Coupled to Normal Metals
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- Bosonization approach to the mixed-valence two-channel Kondo problem
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- Quantum fluctuations of charge and phase transitions of a large Coulomb-blockaded quantum dot
- Enhanced Two-Channel Kondo Physics in a Quantum Box Device
- Mesoscopic fluctuations of tunneling through double quantum dots
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- Numerical study of the Coulomb blockade in an open quantum dot
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- Discrete charging of metallic grains: Statistics of addition spectra