Benjamin Geiger

most citedClassical, semiclassical and quantum signatures of quantum phase transitions in a (pseudo) relativistic many-body system

3 citations · 3 across the 1 of their papers we have counts for

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quant-ph2020

Emergence of a Renormalized $1/ N$ Expansion in Quenched Critical Many-Body Systems

Benjamin Geiger, Juan Diego Urbina, Klaus Richter

We consider the fate of $1/ N$ expansions in unstable many-body quantum systems, as realized by a quench across criticality, and show the emergence of $e^{2 λ t} / N$ as a renorma…

quant-ph2018

Reversible quantum information spreading in many-body systems near criticality

Quirin Hummel, Benjamin Geiger, Juan Diego Urbina +1

Quantum chaotic interacting $N$ -particle systems are assumed to show fast and irreversible spreading of quantum information on short (Ehrenfest) time scales $\sim lo g N$ . Here we…

Emergence of a Renormalized 1/N Expansion in Quenched Critical Many-Body Systems

Reversible quantum information spreading in many-body systems near criticality

Emergence of a Renormalized $1/ N$ Expansion in Quenched Critical Many-Body Systems