449 citations · 589 across the 6 of their papers we have counts for
6 papers
Damping of Bloch oscillations: Variational solutions of the Boltzmann equation beyond linear response
Stephan Mandt
Variational solutions of the Boltzmann equation usually rely on the concept of linear response. We extend the variational approach for tight-binding models at high entropies to a r…
Comment on "Consistent thermostatistics forbids negative absolute temperatures"
Ulrich Schneider, Stephan Mandt, Akos Rapp +4
In this comment we argue that negative absolute temperatures are a well-established concept for systems with bounded spectra. They are not only consistent with thermodynamics, but…
Relaxation towards negative temperatures in bosonic systems: Generalized Gibbs ensembles and beyond integrability
Stephan Mandt, Adrian E. Feiguin, Salvatore R. Manmana
Motivated by the recent experimental observation of negative absolute temperature states in systems of ultracold atomic gases in optical lattices [Braun et al., Science 339, 52 (20…
Interacting Fermionic Atoms in Optical Lattices Diffuse Symmetrically Upwards and Downwards in a Gravitational Potential
Stephan Mandt, Akos Rapp, Achim Rosch
We consider a cloud of fermionic atoms in an optical lattice described by a Hubbard model with an additional linear potential. While homogeneous interacting systems mainly show dam…
Equilibration rates and negative absolute temperatures for ultracold atoms in optical lattices
Akos Rapp, Stephan Mandt, Achim Rosch
As highly tunable interacting systems, cold atoms in optical lattices are ideal to realize and observe negative absolute temperatures, T < 0. We show theoretically that by reversin…
Fermionic transport in a homogeneous Hubbard model: Out-of-equilibrium dynamics with ultracold atoms
Ulrich Schneider, Lucia Hackermüller, Jens Philipp Ronzheimer +8
Transport properties are among the defining characteristics of many important phases in condensed matter physics. In the presence of strong correlations they are difficult to predi…