Quantum behaviors in high-T-c systems: Macroscopic and vortex quantum tunneling
Paper in proceeding, 2006
We describe the main ideas and some experimental outcomes of two experiments, both aimed to study quantum tunneling effects in high-T C structures. In the first experiment, macroscopic quantum tunneling is demonstrated in grain boundary YBaCuO Josephson junctions revealing dissipation levels lower than expected and opening novel perspectives for quantum circuitry. In the second, the low temperature dissipation is dominated by quantum tunneling of individual Pearl vortices in ultra-thin CaBaCuO systems characterized by extremely long Pearl lengths. © 2006 Elsevier B.V. All rights reserved.
Author
Francesco Tafuri
University of Campania Luigi Vanvitelli
Floriana Lombardi
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics
Thilo Bauch
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics
D Stornaiuolo
University of Naples Federico II
D Born
University of Naples Federico II
D. Dalena
University of Campania Luigi Vanvitelli
A. Barone
University of Naples Federico II
G. Rotoli
University of L'Aquila
P. G. Medaglia
University of Rome Tor Vergata
P. Orgiani
University of Rome Tor Vergata
G Balestrino
University of Rome Tor Vergata
V. G. Kogan
Iowa State University
JR Kirtley
IBM Thomas J. Watson Research Center
Physica C: Superconductivity and its Applications
0921-4534 (ISSN)
Vol. 437-38 SPEC. ISS. 303-308Subject Categories
Condensed Matter Physics
DOI
10.1016/j.physc.2005.12.072