Versatile Photonic Entanglement Synthesizer in the Spatial Domain
| Autor: | Mattia Walschaers, Kamel Bencheikh, Valentina Parigi, Nadia Belabas, David Barral, Juan Ariel Levenson, Nicolas Treps |
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| Přispěvatelé: | Centre de Nanosciences et de Nanotechnologies (C2N), Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Computer science
General Physics and Astronomy FOS: Physical sciences 02 engineering and technology Quantum entanglement Topology 01 natural sciences [PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph] Encoding (memory) 0103 physical sciences Electronic engineering Astronomical interferometer Quantum information 010306 general physics ComputingMilieux_MISCELLANEOUS Quantum Physics Quantum network [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] Multi-mode optical fiber business.industry TheoryofComputation_GENERAL Reconfigurability 021001 nanoscience & nanotechnology Quantum technology Nonlinear system Scalability Photonics 0210 nano-technology business Quantum Physics (quant-ph) Physics - Optics Optics (physics.optics) |
| Zdroj: | Physical Review Applied Physical Review Applied, American Physical Society, 2020, 14 (4), ⟨10.1103/PhysRevApplied.14.044025⟩ Scopus-Elsevier |
| ISSN: | 2331-7019 |
| DOI: | 10.1103/PhysRevApplied.14.044025⟩ |
| Popis: | Multimode entanglement is an essential resource for quantum information in continuous-variable systems. Light-based quantum technologies will arguably not be built upon table-top bulk setups, but will presumably rather resort to integrated optics. Sequential bulk optics-like proposals based on cascaded integrated interferometers are not scalable with the current state-of-the-art low-loss materials used for continuous variables. We analyze the multimode continuous-variable entanglement capabilities of a compact currently-available integrated device without bulk-optics analog: the array of nonlinear waveguides. We theoretically demonstrate that this simple and compact structure, together with a reconfigurable input pump distribution and multimode coherent detection of the output modes, is a versatile entanglement synthesizer in the spatial domain. We exhibit this versatility through analytical and numerically optimized multimode squeezing, entanglement, and cluster state generation in different encodings. Our results re-establish spatial encoding as a contender in the game of continuous-variable quantum information processing. Comment: 17 pages, 5 figures, v4 closer to the published version |
| Databáze: | OpenAIRE |
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