# Detection of small single-cycle signals by stochastic resonance using a bistable superconducting quantum interference device

@article{Sun2015DetectionOS, title={Detection of small single-cycle signals by stochastic resonance using a bistable superconducting quantum interference device}, author={Guozhu Sun and Jiquan Zhai and Xueda Wen and Yang Yu and Lin Kang and Weiwei Xu and Jian Chen and Peiheng Wu and Siyuan Han}, journal={arXiv: Mesoscale and Nanoscale Physics}, year={2015} }

We propose and experimentally demonstrate detecting small single-cycle and few-cycle signals by using the symmetric double-well potential of a radio frequency superconducting quantum interference device (rf-SQUID). We show that the response of this bistable system to single- and few-cycle signals has a non-monotonic dependence on the noise strength. The response, measured by the probability of transition from initial potential well to the opposite one, becomes maximum when the noise-induced…

## 8 Citations

Quantum stochastic resonance in an a.c.-driven single-electron quantum dot

- PhysicsNature Physics
- 2019

In stochastic resonance, the combination of a weak signal with noise leads to its amplification and optimization1. This phenomenon has been observed in several systems in contexts ranging from…

Stochastic resonance in photo-switchable spin-crossover solids

- Mathematics
- 2017

The stochastic kinetic in photo-switchable spin-crossover materials with periodic driving force in the context of stochastic resonance (SR) was studied. The resonance phenomena in spin-crossover…

Noise-induced temporal regularity and signal amplification in an optomechanical system with parametric instability.

- Physics, MathematicsOptics express
- 2018

This work investigates the beneficial effects of thermal noise on a basic optomechanical system with parametric instability and finds that thermal noise in the mechanical freedom can sustain long-term quasi-coherent oscillations when the system would otherwise remain in the equilibrium state.

N ov 2 01 8 Noise-induced temporal regularity and signal amplification in an optomechanical system with parametric instability

- 2018

Noise usually has an unwelcome influence on system performance. For instance, noise inevitably affects the low-frequency mechanical freedom in optomechanical experiments. However, we investigate here…

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- Medicine, PhysicsScientific Reports
- 2019

A new and effective implementation of Stochastic Resonance is proposed, resulting in a new type of spectral resonance similar to SR but capable of achieving orders of magnitude higher signal enhancement than previously reported.

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