Many-Body Entanglement in Solid-State Emitters

TL;DR

This paper reviews how solid-state quantum emitters and nanophotonics enable the creation of complex many-body entangled states, addressing challenges like inhomogeneity and decoherence for quantum technologies.

Contribution

It provides a comprehensive overview of many-body interactions in solid-state quantum photonics and discusses recent strategies to mitigate decoherence and enhance entanglement.

Findings

Advances in solid-state emitters enable scalable quantum state generation

Strategies to mitigate decoherence improve entanglement robustness

Potential applications in quantum computation, sensing, and simulation

Abstract

The preparation and control of quantum states lie at the heart of quantum information science (QIS). Recent advances in solid-state quantum emitters (QEs) and nanophotonics have transformed the landscape of quantum photonic technologies, enabling scalable generation of quantum states of light and matter. A new frontier in solid-state quantum photonics is the engineering of many-body interactions between QEs and photons to achieve robust coherence and controllable many-body entanglement. These entangled states, including photonic graph and cluster states, superradiant emission, and emergent quantum phases, are promising for quantum computation, sensing, and simulation. However, intrinsic inhomogeneities and decoherence in solid-state platforms pose significant challenges to realize such complex entangled states. This review provides an overview of the fundamental many-body interactions and dynamics at the light-matter interfaces of solid-state QEs, and discusses recent advances in mitigating decoherence and harnessing robust many-body coherence.