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NEST Scientific Report 2007-2009 Quantum properties of hybrid and superconducting structures
 

Summary: NEST Scientific Report 2007-2009
Quantum properties of hybrid and superconducting structures
35
I
n high critical temperature superconductors (HTS), and in general in complex oxides,
electrons self-organize in ways qualitatively different from those of conventional metals
and insulators, possibly generating unconventional phase transitions and novel forms
of nanoscale ordering and quantum coherence. It is apparent that transport studies of
nanoscale devices can be instrumental in clarifying the nature of the ground state, and to
yield novel insights on dissipation and coherence in superconducting strongly correlated
systems .
Here we report on robust macroscopic quantum behaviour in YBaCuO nanoscale
junctions and rings, which also represent on a longer time scale the basic cell for novel
superconducting/hybrid devices for solid state qubit architectures.
An intense research activity has been
focussed on the study of mesoscopic and
macroscopic quantum properties in high
critical temperature superconductor (HTS)
junctions and nanostructures. The recent
experiments on macroscopic quantum

  

Source: Abbondandolo, Alberto - Scuola Normale Superiore of Pisa

 

Collections: Mathematics