Archive for 'KRb'

Solving Hard Quantum Problems: Everything is Connected

Quantum objects cannot just be understood as the sum of their parts. This is what makes quantum calculations so complicated. Scientists at TU Wien (Vienna) have now calculated Bose-Einstein-condensates, revealing the secrets of the particles’ collective behaviour.

Cooling of a One-Dimensional Bose Gas

New paper from the KRb lab published in Physical Review Letters:

Cooling of a One-Dimensional Bose Gas
Bernhard Rauer, Pjotrs Grišins, Igor E. Mazets, Thomas Schweigler, Wolfgang Rohringer, Remi Geiger, Tim Langen and Jörg Schmiedmayer
Phys. Rev. Lett. 116, 030402 (2016)

Towards experimental quantum-field tomography with ultracold atoms

New paper from the KRb lab published in Nature Communications:

Towards experimental quantum-field tomography with ultracold atoms

A. Steffens, M. Friesdorf, T. Langen, B. Rauer, T. Schweigler, R. Hübener, J. Schmiedmayer, C. A. Riofrío, J. Eisert
Nature Communications 6, 7663 (2015), arXiv:1406.3632

Double Honour for Tim Langen

The quantum physicist Dr. Tim Langen was awarded a QEOD Thesis Prize of the European Physical Society and a Springer Theses Award for his dissertation at the Atominstitut/TU Wien.

Cooling of a one-dimensional Bose gas

New preprint from the KRb lab:

Cooling of a one-dimensional Bose gas
Bernhard Rauer, Pjotrs Grišins, Igor E. Mazets, Thomas Schweigler, Wolfgang Rohringer, Remi Geiger, Tim Langen and Jörg Schmiedmayer
arXiv:1505.04747

On solving the quantum many-body problem

New preprint from the KRb lab:

On solving the quantum many-body problem
Thomas Schweigler, Valentin Kasper, Sebastian Erne, Bernhard Rauer, Tim Langen, Thomas Gasenzer, Jürgen Berges, and Jörg Schmiedmayer
arxiv:1505.03126

Experimental observation of a generalized Gibbs ensemble

New paper from the KRb lab published in Science:

Experimental observation of a generalized Gibbs ensemble

T. Langen, S. Erne, R. Geiger, B. Rauer, T. Schweigler, M. Kuhnert, W. Rohringer, I. E. Mazets, T. Gasenzer, J. Schmiedmayer
Science 348, 207 (2015), arXiv:1411.7185

New review articles

Ultracold atoms out of equilibrium
T. Langen, R. Geiger, and J. Schmiedmayer
Annu. Rev. Cond. Mat. Phys. 6, 201 (2015) , arxiv:1408.6377

Interferometry with Atoms
J. F. Schaff, T. Langen, and J. Schmiedmayer
Proc. Internat. School Phys. Enrico Fermi 188, 1 (2014)
see also Riv. Nuovo Cimento 34, 509 (2014)

Local emergence of thermal correlations in an isolated quantum many-body system

New paper from the KRb Lab published in Nature Physics:

Local emergence of thermal correlations in an isolated quantum many-body system
Tim Langen, Remi Geiger, Maximilian Kuhnert, Bernhard Rauer, and Joerg Schmiedmayer
Nature Physics 9, 640–643 (2013), arxiv:1305.3708

Press release (english/deutsch), Nature Physics News & Views, Physics Today, APA Meldung, diePresse

Two new papers by the KRb lab

Two new papers on the observation of prethermalization by the KRb lab:

Prethermalization revealed by the relaxation dynamics of full distribution functions
New J. Phys. 15, 075011 (2013)

Prethermalization in 1D Bose gases: description by a stochastic Ornstein-Uhlenbeck process
Eur. Phys. J. Special Topics 217, 43 (2013)