245 citations · 556 across the 11 of their papers we have counts for
11 papers
Non-thermal fixed points of universal sine-Gordon coarsening dynamics
Philipp Heinen, Aleksandr N. Mikheev, Christian-Marcel Schmied +1
We examine coarsening of field-excitation patterns of the sine-Gordon (SG) model, in two and three spatial dimensions, identifying it as universal dynamics near non-thermal fixed p…
Vortex motion quantifies strong dissipation in a holographic superfluid
Paul Wittmer, Christian-Marcel Schmied, Thomas Gasenzer +1
Holographic duality provides a description of strongly coupled quantum systems in terms of weakly coupled gravitational theories in a higher-dimensional space. It is a challenge, h…
Dark-Antidark Spinor Solitons in Spin-1 Bose Gases
C. -M. Schmied, P. G. Kevrekidis
We consider a one-dimensional trapped spin-1 Bose gas and numerically explore families of its solitonic solutions, namely antidark-dark-antidark (ADDAD), as well as dark-antidark-d…
Collisions of three-component vector solitons in Bose-Einstein condensates
Stefan Lannig, Christian-Marcel Schmied, Maximilian Prüfer +6
Ultracold gases provide an unprecedented level of control for the investigation of soliton dynamics and collisions. We present a scheme for deterministically preparing pairs of thr…
Stability analysis of ground states in a one-dimensional trapped spin-1 Bose gas
C. -M. Schmied, T. Gasenzer, M. K. Oberthaler +1
In this work we study the stability properties of the ground states of a spin-1 Bose gas in presence of a trapping potential in one spatial dimension. To set the stage we first map…
Violation of single-length scaling dynamics via spin vortices in an isolated spin-1 Bose gas
C. -M. Schmied, T. Gasenzer, P. B. Blakie
We consider the phase ordering dynamics of an isolated quasi-two-dimensional spin-1 Bose gas quenched into an easy-plane ferromagnetic phase. Preparing the initial system in an unm…
Bi-directional universal dynamics in a spinor Bose gas close to a non-thermal fixed point
Christian-Marcel Schmied, Maximilian Prüfer, Markus K. Oberthaler +1
We numerically study the universal scaling dynamics of an isolated one-dimensional ferromagnetic spin-1 Bose gas. Preparing the system in a far-from-equilibrium initial state, simu…
Non-thermal fixed points: Universal dynamics far from equilibrium
Christian-Marcel Schmied, Aleksandr N. Mikheev, Thomas Gasenzer
In this article we give an overview of the concept of universal dynamics near non-thermal fixed points in isolated quantum many-body systems. We outline a non-perturbative kinetic…
Low-energy effective theory of non-thermal fixed points in a multicomponent Bose gas
Aleksandr N. Mikheev, Christian-Marcel Schmied, Thomas Gasenzer
Non-thermal fixed points in the evolution of a quantum many-body system quenched far out of equilibrium manifest themselves in a scaling evolution of correlations in space and time…
Prescaling in a far-from-equilibrium Bose gas
Christian-Marcel Schmied, Aleksandr N. Mikheev, Thomas Gasenzer
Non-equilibrium conditions give rise to classes of universally evolving configurations of quantum-many body systems at non-thermal fixed points. While the fixed point and thus full…
Observation of universal dynamics in a spinor Bose gas far from equilibrium
Maximilian Prüfer, Philipp Kunkel, Helmut Strobel +6
The dynamics of quantum systems far from equilibrium represents one of the most challenging problems in theoretical many-body physics. While the evolution is in general intractable…