Direct transition from quantum escape to a phase diffusion regime in YBaCuO biepitaxial Josephson junctions.

@article{Longobardi2012DirectTF,
  title={Direct transition from quantum escape to a phase diffusion regime in YBaCuO biepitaxial Josephson junctions.},
  author={Luigi Longobardi and Davide Massarotti and D. Stornaiuolo and Luca Galletti and Giacomo Rotoli and Floriana Lombardi and Francesco Tafuri},
  journal={Physical review letters},
  year={2012},
  volume={109 5},
  pages={
          050601
        }
}
Dissipation encodes the interaction of a quantum system with the environment and regulates the activation regimes of a Brownian particle. We have engineered grain boundary biepitaxial YBaCuO junctions to drive a direct transition from a quantum activated running state to a phase diffusion regime. The crossover to the quantum regime is tuned by the magnetic field and dissipation is described by a fully consistent set of junction parameters. To unravel phase dynamics in moderately damped systems… 

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