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What it takes to shun equilibration
R. Gallego, H. Wilming, J. Eisert +1
Numerous works have shown that under mild assumptions unitary dynamics inevitably leads to equilibration of physical expectation values if many energy eigenstates contribute to the…
A fermionic de Finetti theorem
C. Krumnow, Z. Zimboras, J. Eisert
Quantum versions of de Finetti's theorem are powerful tools, yielding conceptually important insights into the security of key distribution protocols or tomography schemes and allo…
Statistical ensembles without typicality
Paul Boes, Henrik Wilming, Jens Eisert +1
Maximum-entropy ensembles are key primitives in statistical mechanics from which thermodynamic properties can be derived. Over the decades, several approaches have been put forward…
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…
Strong coupling corrections in quantum thermodynamics
M. Perarnau-Llobet, H. Wilming, A. Riera +2
Quantum systems strongly coupled to many-body systems equilibrate to the reduced state of a global thermal state, deviating from the local thermal state of the system as it occurs…
Fidelity witnesses for fermionic quantum simulations
M. Gluza, M. Kliesch, J. Eisert +1
The experimental interest and developments in quantum spin-1/2-chains has increased uninterruptedly over the last decade. In many instances, the target quantum simulation belongs t…
Axiomatic characterization of the quantum relative entropy and free energy
Henrik Wilming, Rodrigo Gallego, Jens Eisert
Building upon work by Matsumoto, we show that the quantum relative entropy with full-rank second argument is determined by four simple axioms: i) Continuity in the first argument,…