Shot noise spectroscopy on a semiconductor quantum dot in the elastic and inelastic cotunneling regimes
arXiv:1208.1371 · doi:10.1103/PhysRevB.87.041302
Abstract
We report shot noise spectroscopy on a semiconductor quantum dot in a cotunneling regime. The DC conductance measurements show clear signatures of both elastic and inelastic cotunneling transport inside a Coulomb diamond. We observed Poissonian shot noise with the Fano factor in the elastic cotunneling regime, and super-Poissonian Fano factor in the inelastic cotunneling regime. The differences in the value of the Fano factor between elastic and inelastic processes reveal the microscopic mechanisms involved in the cotunneling transport.
7 pages, 5 figures
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Cited by in corpus (15)
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- Entanglement and thermokinetic uncertainty relations in coherent mesoscopic transport
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- Waiting time distribution revealing the internal spin dynamics in a double quantum dot
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- Shot noise of a quantum dot measured with GHz stub impedance matching
- Measurements of a Quantum Dot with an Impedance-Matching On-Chip LC Resonator at GHz Frequencies
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- Blocking-state influence on shot noise and conductance in quantum dots
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- Quantum noise in carbon nanotubes as a probe of correlations in the Kondo regime
- Noise of a superconducting magnetic flux sensor based on a proximity Josephson junction
- Design and Analysis on a Cryogenic Current Amplifier with a Superconducting Microwave Resonator