Macroscopic Quantum Tunneling in 1-μm Nb Josephson Junctions
Year: 1981
Type: article
Abstract: The probability distributions for switching out of the superconducting state of low-cur-rent-density 1-\ensuremath{\mu}m Nb Josephson junctions with capacitance \ensuremath{\approx} 0.1 pF have been measured as a function of temperature $T$ down to 3 mK. Below 100 mK the distribution widths become independent of $T$. The results are in excellent agreement with predictions for the quantum tunneling of the (macroscopic) junction phase that include the reduction of tunneling rates due to dissipation.
Source: Physical Review Letters
Authors: Richard F. Voss, Richard A. Webb
Institution: IBM Research - Thomas J. Watson Research Center
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1980475217