70 citations · 128 across the 5 of their papers we have counts for
5 papers
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,}…
Symmetry Violation of Quantum Multifractality: Gaussian fluctuations versus Algebraic Localization
A. M. Bilen, B. Georgeot, O. Giraud +2
Quantum multifractality is a fundamental property of systems such as non-interacting disordered systems at an Anderson transition and many-body systems in Hilbert space. Here we di…
Signatures of quantum chaos transition in short spin chains
Emiliano M. Fortes, Ignacio García-Mata, Rodolfo A. Jalabert +1
The non-integrability of quantum systems, often associated with chaotic behavior, is a concept typically applied to cases with a high-dimensional Hilbert space Among different indi…
Semiclassical theory of out-of-time-order correlators for low-dimensional classically chaotic systems
Rodolfo A. Jalabert, Ignacio García-Mata, Diego A. Wisniacki
The out-of-time-order correlator (OTOC), recently analyzed in several physical contexts, is studied for low-dimensional chaotic systems through semiclassical expansions and numeric…
Semiclassical approach to fidelity amplitude
Ignacio García-Mata, Raúl O. Vallejos, Diego A. Wisniacki
The fidelity amplitude is a quantity of paramount importance in echo type experiments. We use semiclassical theory to study the average fidelity amplitude for quantum chaotic syste…