88 citations · 348 across the 11 of their papers we have counts for
11 papers
Extendibility of fermionic states and rigorous ground state approximations of interacting fermionic systems
Christian Krumnow, Zoltán Zimborás, Jens Eisert
Solving interacting fermionic quantum many-body problems as they are ubiquitous in quantum chemistry and materials science is a central task of theoretical and numerical physics, a…
Effective dimension reduction with mode transformations: Simulating two-dimensional fermionic condensed matter systems
C. Krumnow, L. Veis, J. Eisert +1
Tensor network methods have progressed from variational techniques based on matrix-product states able to compute properties of one-dimensional condensed-matter lattice models into…
Towards overcoming the entanglement barrier when simulating long-time evolution
C. Krumnow, J. Eisert, Ö. Legeza
Quantum many-body systems out of equilibrium pose some of the most intriguing questions in physics. Unfortunately, numerically keeping track of time evolution of states under Hamil…
Are many-body localized systems stable in the presence of a small bath?
Marcel Goihl, Jens Eisert, Christian Krumnow
When pushed out of equilibrium, generic interacting quantum systems equilibrate locally and are expected to evolve towards a locally thermal description despite their unitary time…
Edge mode locality in perturbed symmetry protected topological order
Marcel Goihl, Christian Krumnow, Marek Gluza +2
Spin chains with symmetry-protected edge zero modes can be seen as prototypical systems for exploring topological signatures in quantum systems. These are useful for robustly encod…
Quantum read-out for cold atomic quantum simulators
M. Gluza, T. Schweigler, B. Rauer +3
Quantum simulators allow to explore static and dynamical properties of otherwise intractable quantum many-body systems. In many instances, however, it is the read-out that limits s…
Towards local equilibration in closed interacting quantum many-body systems
H. Wilming, M. Goihl, C. Krumnow +1
One of the main questions of research on quantum many-body systems following unitary out of equilibrium dynamics is to find out how local expectation values equilibrate in time. Fo…
Composite symmetry protected topological order and effective models
A. Nietner, C. Krumnow, E. J. Bergholtz +1
Strongly correlated quantum many-body systems at low dimension exhibit a wealth of phenomena, ranging from features of geometric frustration to signatures of symmetry-protected top…
Equilibration via Gaussification in fermionic lattice systems
M. Gluza, C. Krumnow, M. Friesdorf +2
In this work, we present a result on the non-equilibrium dynamics causing equilibration and Gaussification of quadratic non-interacting fermionic Hamiltonians. Specifically, based…
Fermionic orbital optimisation in tensor network states
C. Krumnow, L. Veis, Ö. Legeza +1
Tensor network states and specifically matrix-product states have proven to be a powerful tool for simulating ground states of strongly correlated spin models. Recently, they have…
Dipolar Bose-Einstein Condensates with Weak Disorder
Christian Krumnow, Axel Pelster
A homogeneous polarized dipolar Bose-Einstein condensate is considered in the presence of weak quenched disorder within mean-field theory at zero temperature. By first solving pert…