Publications in Scientific Journals:
H.P. Stimming, N. Mauser, H.-J. Schmiedmayer, I. Mazets:
"Fluctuations and Stochastic Processes in One-Dimensional Many-Body Quantum Systems";
Physical Review Letters,
105
(2010),
015301;
1
- 4.
English abstract:
We study the fluctuation properties of a one-dimensional many-body quantum system composed of
interacting bosons and investigate the regimes where quantum noise or, respectively, thermal excitations
are dominant. For the latter, we develop a semiclassical description of the fluctuation properties based on
the Ornstein-Uhlenbeck stochastic process. As an illustration, we analyze the phase correlation functions
and the full statistical distributions of the interference between two one-dimensional systems, either
independent or tunnel-coupled, and compare with the Luttinger-liquid theory.
"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
http://dx.doi.org/10.1103/PhysRevLett.105.015301
Electronic version of the publication:
http://publik.tuwien.ac.at/files/PubDat_187433.pdf