Work

Speeding up the spread of quantum information in chaotic systems

Year: 2021

Type: article

Abstract: We explore the effect of introducing mild nonlocality into otherwise local, chaotic quantum systems, on the rate of information spreading and associated rates of entanglement generation and operator growth. We consider various forms of nonlocality, both in 1-dimensional spin chain models and in holographic gauge theories, comparing the phenomenology of each. Generically, increasing the level of nonlocality increases the rate of information spreading, but in lattice models we find instances where these rates are slightly suppressed.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep12(2021)019

Authors: Stefan Eccles, Willy Fischler, Tyler Guglielmo, Juan F. Pedraza, Sarah Racz

Institutions: The University of Texas at Austin, University College London, Brandeis University

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: National Science Foundation, Simons Foundation, University of Texas at Austin, Engineering and Physical Sciences Research Council

Awards: G5284113504, String Theory and Quantum Field Theory: From the Planck Scale to the Hubble Scale