187 citations · 2k across the 94 of their papers we have counts for
4 papers · 2 filters
Impact of chaos on precursors of quantum criticality
Ignacio García-Mata, Diego A. Wisniacki, Eduardo G. Vergini
Excited-state quantum phase transitions (ESQPTs) are critical phenomena that generate singularities in the spectrum of quantum systems. {For systems with a classical counterpart,}…
Many-body localization and the emergence of quantum darwinism
Nicolás Mirkin, Diego A. Wisniacki
Quantum darwinism (QD) is the process responsible for the proliferation of redundant information in the environment of a quantum system that is being decohered. This enables indepe…
Loschmidt echo approach to Krylov-subspace approximation error estimation
Julian Ruffinelli, Emiliano Fortes, Martín Larocca +1
The Krylov subspace method is a standard approach to approximate quantum evolution, allowing to treat systems with large Hilbert spaces. Although its application is general, and su…
Sensing quantum chaos through the non-unitary geometric phase
Nicolás Mirkin, Diego Wisniacki, Paula I. Villar +1
Quantum chaos is usually characterized through its statistical implications on the energy spectrum of a given system. In this work we propose a decoherent mechanism for sensing qua…