کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1855957 1529842 2016 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nonlocal hyperconcentration on entangled photons using photonic module system
ترجمه فارسی عنوان
ابررسانای غیر لکوسیتی بر فوتون های درهم شده با استفاده از سیستم ماژول فوتونی
کلمات کلیدی
بیش از حد، فوتون متضاد، ماژول فوتونی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک و نجوم (عمومی)
چکیده انگلیسی

Entanglement distribution will inevitably be affected by the channel and environment noise. Thus distillation of maximal entanglement nonlocally becomes a crucial goal in quantum information. Here we illustrate that maximal hyperentanglement on nonlocal photons could be distilled using the photonic module and cavity quantum electrodynamics, where the photons are simultaneously entangled in polarization and spatial-mode degrees of freedom. The construction of the photonic module in a photonic band-gap structure is presented, and the operation of the module is utilized to implement the photonic nondestructive parity checks on the two degrees of freedom. We first propose a hyperconcentration protocol using two identical partially hyperentangled initial states with unknown coefficients to distill a maximally hyperentangled state probabilistically, and further propose a protocol by the assistance of an ancillary single photon prepared according to the known coefficients of the initial state. In the two protocols, the total success probability can be improved greatly by introducing the iteration mechanism, and only one of the remote parties is required to perform the parity checks in each round of iteration. Estimates on the system requirements and recent experimental results indicate that our proposal is realizable with existing or near-further technologies.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Annals of Physics - Volume 369, June 2016, Pages 128–138
نویسندگان
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