دورية أكاديمية
Cross talk compensation in multimode continuous-variable entanglement distribution.
| العنوان: | Cross talk compensation in multimode continuous-variable entanglement distribution. |
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| المؤلفون: | Kovalenko O, Usenko VC, Filip R |
| المصدر: | Optics express [Opt Express] 2021 Jul 19; Vol. 29 (15), pp. 24083-24101. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Optica Publishing Group Country of Publication: United States NLM ID: 101137103 Publication Model: Print Cited Medium: Internet ISSN: 1094-4087 (Electronic) Linking ISSN: 10944087 NLM ISO Abbreviation: Opt Express Subsets: PubMed not MEDLINE; MEDLINE |
| أسماء مطبوعة: | Publication: Washington, DC : Optica Publishing Group Original Publication: Washington, DC : Optical Society of America, 1997- |
| مستخلص: | Two-mode squeezed states are scalable and robust entanglement resources for continuous-variable and hybrid quantum information protocols that are realized at a distance. We consider the effect of a linear cross talk in the multimode distribution of two-mode squeezed states propagating through parallel similar channels. First, to reduce degradation of the distributed Gaussian entanglement, we show that the initial two-mode squeezing entering the channel should be optimized already in the presence of a small cross talk. Second, we suggest simultaneous optimization of relative phase between the modes and their linear coupling on a receiver side prior to the use of entanglement, which can fully compensate the cross talk once the channel transmittance is the same for all the modes. For the realistic channels with similar transmittance values for either of the modes, the cross talk can be still largely compensated. This method relying on the mode interference overcomes an alternative method of entanglement localization in one pair of modes using measurement on another pair and feed-forward control. Our theoretical results pave the way to more efficient use of multimode continuous-variable photonic entanglement in scalable quantum networks with cross talk. |
| تواريخ الأحداث: | Date Created: 20211007 Latest Revision: 20211007 |
| رمز التحديث: | 20231215 |
| DOI: | 10.1364/OE.428628 |
| PMID: | 34614660 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1094-4087 |
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| DOI: | 10.1364/OE.428628 |