journal article·2024-08-01

Population Oscillations and Ubiquitous Coherences in Multilevel Quantum Systems Driven by Incoherent Radiation

Amro Dodin, Timur V. Tscherbul, Paul Brumer

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Abstract

We consider incoherent excitation of multilevel quantum systems, e.g., molecules with multiple vibronic states. We show that (1) the geometric constraints of the matter-field coupling operator guarantee that noise-induced coherences will be generated in all systems with four or more incoherent transitions between energy eigenstates and (2) noise-induced coherences can lead to population oscillations due to quantum interference via coherence transfer between pairs of states in the ground and excited manifolds. Our findings facilitate the experimental detection of noise-induced coherent dynamics in complex quantum systems.
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Research context

OpenAlex topics: Quantum optics and atomic interactions · Quantum Information and Cryptography · Laser-Matter Interactions and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States

Department of Physics, University of Nevada, Reno, Nevada 89557, United States

Chemical Physics Theory Group, Department of Chemistry, and Center for Quantum Information and Quantum Control, University of Toronto, Toronto, Ontario M5S 3H6, Canada

Funding

Air Force Office of Scientific Research

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