Open AccessReconfigurable Josephson Phase Shifter
Author(s) -
Taras Golod,
Razmik A. Hovhannisyan,
O. M. Kapran,
Vyacheslav Dremov,
V. S. Stolyarov,
Vladimir M. Krasnov
Publication year - 2021
Publication title -
nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 4.853
H-Index - 488
eISSN - 1530-6992
pISSN - 1530-6984
DOI - 10.1021/acs.nanolett.1c01366
Subject(s) - vortex , phase shift module , superconductivity , josephson effect , phase (matter) , condensed matter physics , quantum decoherence , electronics , physics , nanoscopic scale , range (aeronautics) , quantum computer , work (physics) , quantum , optoelectronics , quantum mechanics , materials science , electrical engineering , engineering , thermodynamics , composite material
Phase shifter is one of the key elements of quantum electronics. In order to facilitate operation and avoid decoherence, it has to be reconfigurable, persistent, and nondissipative. In this work, we demonstrate prototypes of such devices in which a Josephson phase shift is generated by coreless superconducting vortices. The smallness of the vortex allows a broad-range tunability by nanoscale manipulation of vortices in a micron-size array of vortex traps. We show that a phase shift in a device containing just a few vortex traps can be reconfigured between a large number of quantized states in a broad [-3π, +3π] range.