تقرير
Measurement-device-independent entanglement detection for continuous-variable systems
| العنوان: | Measurement-device-independent entanglement detection for continuous-variable systems |
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| المؤلفون: | Abiuso, Paolo, Bäuml, Stefan, Cavalcanti, Daniel, Acín, Antonio |
| المصدر: | Phys. Rev. Lett. 126, 190502 (2021) |
| سنة النشر: | 2021 |
| المجموعة: | Physics (Other) Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics, Physics - Optics |
| الوصف: | We study the detection of continuous-variable entanglement, for which most of the existing methods designed so far require a full specification of the devices, and we present protocols for entanglement detection in a scenario where the measurement devices are completely uncharacterised. We first generalise, to the continuous variable regime, the seminal results by Buscemi [PRL 108, 200401(2012)] and Branciard et al. [PRL 110, 060405 (2013)], showing that all entangled states can bedetected in this scenario. Most importantly, we then describe a practical protocol that allows for the measurement-device-independent certification of entanglement of all two-mode entangled Gaussian states. This protocol is feasible with current technology as it makes only use of standard optical setups such as coherent states and homodyne measurements. Comment: Accepted in PRL |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevLett.126.190502 |
| URL الوصول: | http://arxiv.org/abs/2101.10778 |
| رقم الأكسشن: | edsarx.2101.10778 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevLett.126.190502 |
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