Effect of a low-frequency cutoff

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Table of contents

1 Introduction
1.1 Josephson effect and mesoscopic physics
1.2 Detecting asymmetric noise with a Josephson junction
1.3 Towards Andreev states spectroscopy
I Detecting noise asymmetry using a Josephson junction
2 Escape of a Josephson junction out of the metastable state
2.1 The Josephson junction in an electromagnetic environment
2.2 Escape rate out of the zero-voltage state
2.3 Escape driven by an asymmetric noise
2.4 Conclusion
3 Numerical simulation of the escape
3.1 Simulation algorithm
3.2 Rate estimation
3.3 Results on the escape rate
3.4 Effect of a low-frequency cutoff
3.5 Conclusion
4 Experimental detection of an asymmetric noise with a Josephson junction
4.1 Introduction
4.2 Experimental setup
4.3 Circuit characterization & measurement techniques
4.4 Results on Sample JJD1
4.5 Results on Sample JJD2
4.6 Perspectives
4.7 Conclusion
Article reporting the measurement of asymmetric noise using a Josephson junction
II Probing Andreev States in superconducting atomic contacts
5 Josephson effect and Andreev states
5.1 Andreev Bound States
5.2 An experimental test-bed: superconducting atomic contacts
5.3 Supercurrent in atomic contacts
5.4 Current-phase relation of well-characterized contacts
5.5 Out-of-equilibrium effects
5.6 Conclusions
6 Towards Andreev states spectroscopy
6.1 Predictions for the Andreev transition
6.2 Design of an experimental setup
6.3 Probing the new on-chip environment with a standard SQUID circuit
III Sample Fabrication and Measurement Techniques
7 Sample Fabrication
7.1 Samples JJD for noise detection experiments
7.2 Samples AC1 and AC2 for atomic contacts experiments
7.3 SQUID sample
7.4 Lithography recipes
8 Low-Noise Measurement Techniques
8.1 Sample Holder & Bending Mechanism.
8.2 Cryostat wiring
8.3 Room temperature connections and instruments
IV Appendix
A Additional measurements
A.1 Back-Bending in the I(V ) characteristics of Josephson junctions .
A.2 Heating effects in switching measurements
B Miscellaneous
B.1 Approximations for the tilted washboard potential
B.2 Resonant activation through the modulation of the critical current
B.3 Moments and Cumulants, and Poisson Process.
B.4 Details on the simulations
B.5 The Andreev Levels Qubit
B.6 Critical current of a Josephson junction with electrodes having different gaps
B.7 Attenuators
B.8 Correspondence between names
Bibliography