activity
20112024
most citedFermionic orbital optimisation in tensor network states

88 citations · 348 across the 11 of their papers we have counts for

collaborators

11 papers

quant-ph2024

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…

cond-mat.str-el2019★ 13 cited

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…

cond-mat.stat-mech2019★ 16 cited

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…

cond-mat.dis-nn2019★ 52 cited

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…

cond-mat.dis-nn2019★ 5 cited

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…

quant-ph2018★ 25 cited

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…