Absence of a Dissipative Quantum Phase Transition in Josephson Junctions
A. Murani, N. Bourlet, H. le Sueur, F. Portier, C. Altimiras, D. Esteve, H. Grabert, J. Stockburger, J. Ankerhold, P. Joyez
Abstract
Experiments show that, contrary to long-held predictions, a Josephson junction in series with a large enough resistance does not become insulating at low temperature, thus forcing a reanalysis of quantum phase transitions in these and similar systems.
Topics & Concepts
Josephson effectPhysicsCondensed matter physicsDissipative systemPi Josephson junctionQuantumQuantum phase transitionForcing (mathematics)Phase transitionSeries (stratigraphy)Phase (matter)Superconducting tunnel junctionJosephson energyQuantum mechanicsQuantum phasesQuantum fluctuationQuantum dotJosephson phaseSuperconductivityQuantum tunnellingMacroscopic quantum phenomenaPhase lockingQuantum decoherenceSuperconducting quantum computingSuperfluid filmSquidQuantum systemQuantum dissipationAdvanced Electrical Measurement TechniquesQuantum and electron transport phenomenaQuantum Information and Cryptography