Resonant activation of a Brownian particle out of a potential well: Microwave-enhanced escape from the zero-voltage state of a Josephson junction

1987 ◽  
Vol 36 (1) ◽  
pp. 58-73 ◽  
Author(s):  
Michel H. Devoret ◽  
Daniel Esteve ◽  
John M. Martinis ◽  
Andrew Cleland ◽  
John Clarke
Keyword(s):  
Josephson Junction ◽  
Brownian Particle ◽  
Potential Well ◽  
Zero Voltage ◽  
Resonant Activation

scholarly journals Simulating Ramsey-Type Fringes in a Pulsed Microwave-Driven Classical Josephson Junction

2007 ◽  
Vol 14 (02) ◽  
pp. 189-196 ◽  
Author(s):  
Jeffrey E. Marchese ◽  
Matteo Cirillo ◽  
Niels Grønbech-Jensen
Keyword(s):  
Josephson Junction ◽  
Classical Model ◽  
Nonlinear Behaviour ◽  
Potential Well ◽  
Present Evidence ◽  
Anharmonic Potential ◽  
Observed Behaviour ◽  
Ramsey Type ◽  
Zero Voltage ◽  
Transient Oscillations

We present evidence for a close analogy between the nonlinear behaviour of a pulsed microwave-driven Josephson junction at low temperature and the experimentally observed behaviour of Josephson systems operated below the quantum transition temperature under similar conditions. We specifically address observations of Ramsey-type fringe oscillations, which can be understood in classical nonlinear dynamics as results of slow transient oscillations in a pulsed microwave environment. Simulations are conducted to mimic experimental measurements by recording the statistics of microwave-induced escape events from the anharmonic potential well of a zero-voltage state. Observations consistent with experimentally obtained Ramsey-type oscillations are found in the classical model.

Resonant Activation from the Zero-Voltage State of a Current-Biased Josephson Junction

1984 ◽  
Vol 53 (13) ◽  
pp. 1260-1263 ◽  
Author(s):  
Michel H. Devoret ◽  
John M. Martinis ◽  
Daniel Esteve ◽  
John Clarke
Keyword(s):  
Josephson Junction ◽  
Zero Voltage ◽  
Resonant Activation ◽  
A Current

Classical resonant activation of a Josephson junction embedded in an LC circuit

2007 ◽  
Vol 75 (14) ◽  
Author(s):  
G. Rotoli ◽  
T. Bauch ◽  
T. Lindstrom ◽  
D. Stornaiuolo ◽  
F. Tafuri ◽  
...  
Keyword(s):  
Josephson Junction ◽  
Lc Circuit ◽  
Resonant Activation

The return of a hysteretic Josephson junction to the zero‐voltage state:  I‐Vcharacteristic and quantum retrapping

1988 ◽  
Vol 64 (6) ◽  
pp. 3119-3142 ◽  
Author(s):  
Y. C. Chen ◽  
Matthew P. A. Fisher ◽  
A. J. Leggett
Keyword(s):  
Josephson Junction ◽  
Zero Voltage

scholarly journals EFFECTS OF COLORED NOISE IN SHORT OVERDAMPED JOSEPHSON JUNCTION

2008 ◽  
Vol 06 (supp01) ◽  
pp. 801-806 ◽  
Author(s):  
G. AUGELLO ◽  
D. VALENTI ◽  
B. SPAGNOLO
Keyword(s):  
Josephson Junction ◽  
Correlation Time ◽  
Colored Noise ◽  
Switching Time ◽  
Transient Dynamics ◽  
Noise Correlation ◽  
The Mean ◽  
Resonant Activation ◽  
Driving Signal ◽  
Enhanced Stability

We investigate the transient dynamics of a short overdamped Josephson junction with a periodic driving signal in the presence of colored noise. We analyze noise induced phenomena, specifically resonant activation and noise enhanced stability. We find that the positions both of the minimum of RA and maximum of NES depend on the value of the noise correlation time τc. Moreover, in the range where RA is observed, we find a non-monotonic behavior of the mean switching time as a function of τc.

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