Tailoring Non-Gaussian Continuous-Variable Graph States
| Autor: | Mattia Walschaers, Valentina Parigi, Supratik Sarkar, Nicolas Treps |
|---|---|
| Přispěvatelé: | Laboratoire Kastler Brossel (LKB (Jussieu)), Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2018 |
| Předmět: |
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics]
Quantum Physics Photon Field (physics) Degree (graph theory) Computer science Gaussian Subtraction FOS: Physical sciences General Physics and Astronomy Optics 01 natural sciences 010305 fluids & plasmas symbols.namesake [PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph] 0103 physical sciences symbols Graph (abstract data type) Statistical physics Quantum Physics (quant-ph) 010306 general physics Quantum Physics - Optics Optics (physics.optics) Quantum computer |
| Zdroj: | Physical Review Letters Physical Review Letters, American Physical Society, 2018, 121 (22), pp.220501. ⟨10.1103/PhysRevLett.121.220501⟩ |
| ISSN: | 1079-7114 0031-9007 |
| Popis: | Graph states are the backbone of measurement-based continuous-variable quantum computation. However, experimental realisations of these states induce Gaussian measurement statistics for the field quadratures, which poses a barrier to obtain a genuine quantum advantage. In this letter, we propose mode-selective photon addition and subtraction as viable and experimentally feasible pathways to introduce non-Gaussian features in such continuous-variable graph states. In particular, we investigate how the non-Gaussian properties spread among the vertices of the graph, which allows us to show the degree of control that is achievable in this approach. Comment: 5 pages, 3 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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