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Quantum coherence, quantum statistics, and superconductivity in mesoscopic systems
Third-party funded project
Project title Quantum coherence, quantum statistics, and superconductivity in mesoscopic systems
Principal Investigator(s) Bruder, Christoph
Organisation / Research unit Departement Physik / Theoretische Physik (Bruder)
Project start 01.10.2011
Probable end 30.09.2014
Status Completed
Abstract

The physics of mesoscopic systems, i.e., electronic structures in the
nanometer range, is one of the most active research areas of
condensed-matter physics. These systems allow us to study fundamental
physics questions, and their understanding is a necessary prerequisite
for possible future electronic device applications.  The goal of our
research is to exploit and analyze quantum interference effects in
such electronic circuits. In the last couple of years, new exciting
areas have opened up, like nanomechanics, or the interface of
ultracold atoms and condensed-matter systems.

In particular, our group (about 3 PhD students and 3 Postdocs) plans
to study the interplay of electric currents through nanostructures
with mechanical degrees of freedom (nanomechanics).  We are also
interested in fluctuation and noise phenomena: electrical currents are
not exactly constant but fluctuate, and these fluctuations contain a
great deal of information about the quantum nature of the electrons
that carry the current. We will also investigate ultracold atoms which
can be used to study quantum coherence and quantum many-body
phenomena. Cold atoms can be trapped in so-called optical lattices and
show similarities to electrons in a crystal lattice. The great
advantage of cold atoms is that the properties of the lattice can be
controlled much more easily than in the case of a crystal
lattice. Finally, we are also interested in the foundations of quantum
mechanics (entanglement, weak measurements in solid-state systems).

Financed by Swiss National Science Foundation (SNSF)

Cooperations ()

  ID Kreditinhaber Kooperationspartner Institution Laufzeit - von Laufzeit - bis
97224  Bruder, Christoph  Fazio, Rosario, Professor  Scuola Normale Superiore Pisa  01.10.2009  30.09.2011 
170487  Bruder, Christoph  Averin, Dima, Professor  SUNY, Stony Brook  01.10.2006  30.11.2011 
170490  Bruder, Christoph  Belzig, Wolfgang, Professor  University of Konstanz  01.10.2005  31.10.2013 
   

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