25 citations · 98 across the 10 of their papers we have counts for
10 papers
Stiffness of Probability Distributions of Work and Jarzynski Relation for Initial Microcanonical and Energy Eigenstates
Lars Knipschild, Andreas Engel, Jochen Gemmer
We consider closed quantum systems (into which baths may be integrated) that are driven, i.e., subject to time-dependent Hamiltonians. As a starting point we assume that, for syste…
Modeling the Impact of Hamiltonian Perturbations on Expectation Value Dynamics
Robin Heveling, Lars Knipschild, Jochen Gemmer
Evidently, some relaxation dynamics, e.g. exponential decays, are much more common in nature than others. Recently there have been attempts to explain this observation on the basis…
Modern Concepts of Quantum Equilibration Do Not Rule Out Strange Relaxation Dynamics
Lars Knipschild, Jochen Gemmer
Numerous pivotal concepts have been introduced to clarify the puzzle of relaxation and/or equilibration in closed quantum systems. All of these concepts rely in some way on specifi…
Compelling Bounds on Equilibration Times -- the Issue with Fermi's Golden Rule
Robin Heveling, Lars Knipschild, Jochen Gemmer
Putting a general, physically relevant upper bound on equilibration times in closed quantum systems is a recently much pursued endeavor. In PRX, 7, 031027 (2017) Garc\'ıa-Pintos et…
Exponential damping induced by random and realistic perturbations
Jonas Richter, Fengping Jin, Lars Knipschild +4
Given a quantum many-body system and the expectation-value dynamics of some operator, we study how this reference dynamics is altered due to a perturbation of the system's Hamilton…
Decoherence Entails Exponential Forgetting in Systems Complying with the Eigenstate Thermalization Hypothesis
Lars Knipschild, Jochen Gemmer
According to the eigenstate thermalization ansatz, matrices representing generic few body observables take on a specific form when displayed in the eigenbasis of a chaotic Hamilton…