Discrete Breathers in Nonlinear Lattices: Experimental Detection in a Josephson Array
E. Trías, J. J. Mazo, T. P. Orlando
DOI 10.1103/PhysRevLett.84.741 · Physical Review Letters
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We present the experimental detection of discrete breathers in an underdamped Josephson-junction array. Breathers exist under a range of dc current biases and temperatures, and are detected by measuring dc voltages. We find that the maximum allowable bias current for the breather is proportional to the array depinning current, while the minimum current seems to be related to a junction retrapping mechanism. We have observed that this latter instability leads to the formation of multisite breather states in the array. We have also studied the domain of existence of the breather at different values of the array parameters by varying the temperature.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Spatially resolved study of the dynamics of Josephson tunnel junctions
similarity 0.94S. G. Lachenmann et al.
Source status unknown — claims are unverified
Fractional giant Shapiro steps and spatially correlated phase motion in 2D Josephson arrays
similarity 0.94S. P. Benz et al.
Source status unknown — claims are unverified
Phase locking of Josephson junctions in a two-dimensional array
similarity 0.93S. G. Lachenmann et al.
Source status unknown — claims are unverified
Synchronization of Large Josephson-Junction Arrays by Traveling Electromagnetic Waves
similarity 0.93M. A. Galin et al.
Source status unknown — claims are unverified
Discrete Breathers in Two-Dimensional Josephson-Junction Arrays
similarity 0.93J. J. Mazo
Source status unknown — claims are unverified
Temperature Dependence of Coherent Oscillations in Josephson Phase Qubits
similarity 0.93J. Lisenfeld et al.
Source status unknown — claims are unverified