103 citations · 518 across the 33 of their papers we have counts for
8 papers · 1 filter
Gaussianity revisited: Exploring the Kibble-Zurek mechanism with superconducting rings
D. J. Weir, R. Monaco, V. P. Koshelets +2
In this paper we use spontaneous flux production in annular superconductors to shed light on the Kibble-Zurek scenario. In particular, we examine the effects of finite size and ext…
Fluxoid formation: size effects and non-equilibrium universality
David J. Weir, Ray J. Rivers
Simple causal arguments put forward by Kibble and Zurek suggest that the scaling behaviour of condensed matter at continuous transitions is related to the familiar universality cla…
Spontaneous Fluxoid Formation in Superconducting Loops
R. Monaco, J. Mygind, R. J. Rivers +1
We report on the first experimental verification of the Zurek-Kibble scenario in an isolated superconducting ring over a wide parameter range. The probability of creating a single…
The Non-universal behaviour of Cold Fermi Condensates with Narrow Feshbach Resonances
Chi-Yong Lin, Da-Shin Lee, Ray J. Rivers
In this paper we construct an effective field theory for a condensate of cold Fermi atoms whose scattering is controlled by a narrow Feshbach resonance. We show how, from first pri…
Spontaneous Fluxon Production in Annular Josephson Tunnel Junctions in the Presence of a Magnetic Field
R. Monaco, M. Aaroe, J. Mygind +2
We report on the spontaneous production of fluxons in the presence of a symmetry-breaking magnetic field for annular Josephson tunnel junctions during a thermal quench. The depende…
Using Annular Josephson Tunnel Junctions to Monitor Causal Horizon
R. Monaco, R. J. Rivers
If systems change as fast as possible as they pass through a phase transition then the initial domain structure is constrained by causality. We shall show how we can trace these ca…
Zurek-Kibble Mechanism for the Spontaneous Vortex Formation in Josephson Tunnel Junctions: New Theory and Experiment
R. Monaco, J. Mygind, M. Aaroe +2
New scaling behavior has been both predicted and observed in the spontaneous production of fluxons in quenched annular Josephson tunnel junctions as a function o…
Spontaneous Fluxon Formation in Annular Josephson Tunnel Junctions
Roberto Monaco, Jesper Mygind, Ray J. Rivers
It has been argued by Zurek and Kibble that the likelihood of producing defects in a continuous phase transition depends in a characteristic way on the quench rate. In this paper w…