6 citations · 6 across the 4 of their papers we have counts for
5 papers · 1 filter
On the relaxation dynamics of non-equilibrium quantum systems
Matthias Carosi, Björn Garbrecht, Silvia Pla +2
We investigate the relaxation of an approximately conserved charge in interacting quantum systems close to local equilibrium. To this end, we provide a pedagogical review of Zubare…
Zero-damped modes of near-extremal Reissner--Nordström black holes from exact WKB
Prisco Lo Chiatto, Sebastian Schenk, Nils Wagner +1
The late-time ringdown dynamics of near-extremal black holes (BHs) are expected to be dominated by zero-damped modes (ZDMs), whose decay rates are parametrically suppressed relativ…
Instantons meet resonances: Unifying two seemingly distinct approaches to quantum tunneling
Björn Garbrecht, Nils Wagner
In the study of quantum-mechanical tunneling processes, numerous approaches have been developed to determine the decay rate of states initially confined within a metastable potenti…
Path integral analysis of Schrödinger-type eigenvalue problems in the complex plane: Establishing the relation between instantons and resonant states
Björn Garbrecht, Nils Wagner
Schrödinger-type eigenvalue problems are ubiquitous in theoretical physics, with quantum-mechanical applications typically confined to cases for which the eigenfunctions are requir…
False vacuum decay of excited states in finite-time instanton calculus
Björn Garbrecht, Nils Wagner
Extracting information about a system's metastable ground state energy employing functional methods usually hinges on utilizing the late-time behavior of the Euclidean propagator,…