Achieving the threshold regime with an over-screened Josephson junction
arXiv:0808.3465 · doi:10.1103/PhysRevLett.102.086806
Abstract
We demonstrate that by utilizing an over-screened Josephson junction as a noise detector it is possible to achieve the threshold regime, whereby the tails of the fluctuating current distribution are measured. This situation is realized by placing the Josephson junction and mesoscopic conductor in an external circuit with very low impedance. In the underdamped limit, over-screening the junction inhibits the energy diffusion in the junction, effectively creating a tunable activation barrier to the dissipative state. As a result, the activation rate is qualitatively different from the Arrhenius form.
4 pages, 1 figure; published version
References in corpus (18)
- Counting statistics of single-electron transport in a quantum dot
- Environmental effects in the third moment of voltage fluctuations in a tunnel junction
- Measurement of Counting Statistics of Electron Transport in a Tunnel Junction
- Counting statistics and super-Poissonian noise in a quantum dot
- Conditional statistics of electron transport in interacting nanoscale conductors
- Josephson junctions as threshold detectors for full counting statistics
- Temperature dependent third cumulant of tunneling noise
- Cascade Boltzmann - Langevin approach to higher-order current correlations in diffusive metal contacts
- Detection of non-Gaussian Fluctuations in a Quantum Point Contact
- Wide-band detection of the third moment of shot noise by a hysteretic Josephson junction
- Transport Statistics of Bistable Systems
- Stochastic dynamics of a Josephson junction threshold detector
- Frequency Scales for Current Statistics of Mesoscopic Conductors
- Detecting charge noise with a Josephson junction: A problem of thermal escape in presence of non-Gaussian fluctuations
- Shot-noise-driven escape in hysteretic Josephson junctions
- Josephson junctions as detectors for non-Gaussian noise
- Josephson junction detector of non-Gaussian noise
- Mesoscopic threshold detectors: Telegraphing the size of a fluctuation