Coherence-Driven Topological Transition in Quantum Metamaterials
| Autor: | Chihhui Wu, Pankaj K. Jha, Jeongmin Kim, Yuan Wang, Xiang Zhang, Yuri V. Rostovtsev, Michael Mrejen |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Atomic Physics (physics.atom-ph)
General Physics and Astronomy FOS: Physical sciences Physics::Optics 02 engineering and technology Quantum imaging Topology 01 natural sciences Physics - Atomic Physics Open quantum system Quantum mechanics 0103 physical sciences 010306 general physics Quantum metamaterial Quantum Physics Quantum Physics Condensed matter physics business.industry Quantum sensor Metamaterial 021001 nanoscience & nanotechnology Photonics 0210 nano-technology business Quantum Physics (quant-ph) Coherence (physics) Optics (physics.optics) Physics - Optics |
| Popis: | 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 challenges 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 closed topology at the same frequency. This atomic lattice quantum metamaterial enables a dynamic manipulation of the decay rate branching ratio of a probe quantum emitter by more than an order of magnitude. Our 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. |
| Databáze: | OpenAIRE |
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