Work

Extreme Decoherence and Quantum Chaos

Year: 2019

Type: article

Abstract: We study the ultimate limits to the decoherence rate associated with dephasing processes. Fluctuating chaotic quantum systems are shown to exhibit extreme decoherence, with a rate that scales exponentially with the particle number, thus exceeding the polynomial dependence of systems with fluctuating k-body interactions. Our findings suggest the use of quantum chaotic systems as a natural test bed for spontaneous wave function collapse models. We further discuss the implications on the decoherence of AdS/CFT black holes resulting from the unitarity loss associated with energy dephasing.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.122.014103

Authors: Zhenyu Xu, Luis Pedro García-Pintos, Aurélia Chenu, Adolfo del Campo

Institutions: University of Massachusetts Boston, Soochow University, Ikerbasque, Los Alamos National Laboratory, Donostia International Physics Center

Language: English

Topic: Quantum chaos and dynamical systems

Subfield: Statistical and Nonlinear Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: John Templeton Foundation, University of Massachusetts Boston, National Natural Science Foundation of China

Awards: G529604792, G6916448668