Coherence-Driven Topological Transition in Quantum Metamaterials
arXiv:1602.03261 · doi:10.1103/PhysRevLett.116.165502
Abstract
We introduce and theoretically demonstrate a quantum metamaterial made of dense ultracold neutral atoms loaded into an inherently defect-free artificial crystal of light, immune to well-known critical chal- lenges inevitable in conventional solid-state platforms. We demonstrate an all-optical control on ultrafast time scales over the photonic topological transition of the isofrequency contour from an open to close topology at the same frequency. This atomic lattice quantum metamaterial enables a dynamic manipula- tion of the decay rate of a probe quantum emitter by more than an order of magnitude. This proposal may lead to practically lossless, tunable and topologically-reconfigurable quantum metamaterials, for single- or few-photon-level applications as varied as quantum sensing, quantum information processing, and quantum simulations using metamaterials.
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- Remote Creation of Quantum Coherence
- Resource Theory of Total Quantum Coherence
- Engineering quantum interference in van der Waals heterostructures
- Quantum coherence in mutually unbiased bases