Dissipative phase transition in two-dimensional d-wave Josephson junctions

  title={Dissipative phase transition in two-dimensional d-wave Josephson junctions},
  author={D. V. Khveshchenko},
  journal={Journal of Physics: Condensed Matter},
  pages={2443 - 2452}
Quantum dynamics of in-plane Josephson junctions between two d-wave superconducting films is described by the anisotropic XY-model, where both quasiparticle and Cooper pair tunnelling terms appear to be equally non-local. Applying a combination of the weak and strong coupling analyses to this model, we find compelling evidence of a dissipative phase transition. The corresponding critical behaviour is studied and contrasted with that found previously in the conventional (s-wave) Josephson… 
1 Citations
On the applicability of the layered sine–Gordon model for Josephson-coupled high-Tc layered superconductors
We find a mapping of the layered sine–Gordon model to an equivalent gas of topological excitations and determine the long-range interaction potentials of the topological defects. This enables us to


Macroscopic quantum tunneling and quasiparticle dissipation in d-wave superconductor Josephson junctions
We examine the macroscopic quantum tunneling (MQT) in high-Tc superconductor Josephson junctions with a d-wave order parameter. Using a microscopic Hamiltonian and the functional integral method, we
Dynamics and phase transitions of Josephson junctions with dissipation due to quasiparticle tunneling
We investigate the dynamics and the phase diagram of Josephson junctions where the dissipation is due to quasiparticle tunneling. This system is formally equivalent to a one-dimensional X-Y model
Quantum phase transitions in dissipative tunnel junctions
The Ueda-Guinea model of a dissipative tunnel junction is investigated. This model accounts for final-state effects associated with single-electron tunneling. A quantum phase transition emerges,
Decoherence due to nodal quasiparticles in d-wave qubits
We study the Josephson junction between two d-wave superconductors, which is discussed as an implementation of a qubit. We propose an approach to calculate the decoherence time due to an intrinsic
Tunnel junctions of unconventional superconductors.
The phenomenology of Josephson tunnel junctions between unconventional superconductors is developed further and the full I-V characteristics are found and comment on the thermodynamical properties of these junctions are commented on.
Quasiparticle decoherence in d-wave superconducting qubits.
It is usually argued that the presence of gapless quasiparticle excitations at the nodes of the d-wave superconducting gap should strongly decohere the quantum states of a d-wave qubit, making
Nodal Cooper-pair stabilized phase dynamics in granular d-wave superconductors.
The findings suggest that the d-wave superconductivity in an array of grains is unexpectedly robust against a disordering transition, as observed in the experiments, and predict the existence of a planar Josephson-plasmon mode with characteristic frequency that decreases with temperature.
Effect of zero-energy bound states on macroscopic quantum tunneling in high- T c superconductor junctions
The macroscopic quantum tunneling MQT in the current biased high-Tc superconductor Josephson junctions and the effect of the zero-energy bound states ZES on the MQT are theoretically investigated. We
Coulomb blockade and nonperturbative ground-state properties of ultrasmall tunnel junctions.
A nonperturbative calculation of the ground-state energy of a normal tunnel junction is presented and a phase transition between insulating and conducting behavior of the junction controlled by an external Ohmic resistance is predicted.
Mesoscopic Josephson Junctions of high-Tc Superconductors
In this paper we examine the state-of-the-art patterning techniques for fabrication of ultrasmall bicrystal Josephson junctions in YBa 2 Cu 3 O x . We determine the dependence of junction parameters