The Bright Side of Coulomb Blockade

Max Hofheinz; Fabien Portier; Quentin Baudouin; Philippe Joyez; Denis Vion; Patrice Bertet; Patrice Roche; Daniel Esteve

doi:10.1103/PhysRevLett.106.217005

The Bright Side of Coulomb Blockade

Superconductivity 2017-04-06 v1 Mesoscale and Nanoscale Physics Quantum Physics

Authors: Max Hofheinz , Fabien Portier , Quentin Baudouin , Philippe Joyez , Denis Vion , Patrice Bertet , Patrice Roche , Daniel Esteve

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

We explore the photonic (bright) side of dynamical Coulomb blockade (DCB) by measuring the radiation emitted by a dc voltage-biased Josephson junction embedded in a microwave resonator. In this regime Cooper pair tunneling is inelastic and associated to the transfer of an energy 2eV into the resonator modes. We have measured simultaneously the Cooper pair current and the photon emission rate at the resonance frequency of the resonator. Our results show two regimes, in which each tunneling Cooper pair emits either one or two photons into the resonator. The spectral properties of the emitted radiation are accounted for by an extension to DCB theory.

Keywords

dynamical Coulomb blockade Josephson junction Cooper pair tunneling photon emission microwave resonator inelastic tunneling

Cite

@article{arxiv.1102.0131,
  title  = {The Bright Side of Coulomb Blockade},
  author = {Max Hofheinz and Fabien Portier and Quentin Baudouin and Philippe Joyez and Denis Vion and Patrice Bertet and Patrice Roche and Daniel Esteve},
  journal= {arXiv preprint arXiv:1102.0131},
  year   = {2017}
}

Comments

4 pages, 4 figures + 3 pages, 1 figure supplementary material

The Bright Side of Coulomb Blockade

Abstract

Keywords

Cite

Comments

Related papers