Spectral Linewidths of Josephson Oscillators

M. Salerno; M. R. Samuelsen; A. V. Yulin

doi:10.1103/PhysRevLett.86.5397

Spectral Linewidths of Josephson Oscillators

M. Salerno, M. R. Samuelsen, and A. V. Yulin

Phys. Rev. Lett. 86, 5397 – Published 4 June 2001

Abstract

We show that the linewidth of a Josephson flux-flow oscillator has the same functional dependence on temperature, static, and dynamic resistances as the ones of Josephson single-fluxon oscillators and small Josephson junctions. This suggests a universal formula for the linewidth of Josephson oscillators.

Received 30 January 2001

DOI:https://doi.org/10.1103/PhysRevLett.86.5397

Authors & Affiliations

M. Salerno^* and M. R. Samuelsen

Department of Physics, The Technical University of Denmark, DK-2800 Kogens Lyngby, Denmark

A. V. Yulin

Institute for Physics of Microstructures of RAS, Nizhny Novgorod, 603600, Russia

^*Permanent address: Dipartimento di Fisica “E.R. Caianiello,” and Istituto Nazionale di Fisica della Materia (INFM), Universita' di Salerno, I-84100 Salerno, Italy.Email address: salerno@sa.infn.it