تقرير
Entanglement concentration protocols for GHZ-type entangled coherent state based on linear optics
| العنوان: | Entanglement concentration protocols for GHZ-type entangled coherent state based on linear optics |
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| المؤلفون: | Sisodia, Mitali, Shukla, Chitra |
| سنة النشر: | 2020 |
| المجموعة: | Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics |
| الوصف: | We proposed two entanglement concentration protocols (ECPs) to obtain maximally entangled Greenberger-Horne-Zeilinger (GHZ)-type entangled coherent state (ECS) from the corresponding partially entangled GHZ-type ECSs. We obtained the first ECP using a partially entangled GHZ-type ECS assisted with a superposition of single-mode coherent state, however the second ECP is designed using two copies of partially entangled GHZ-type ECSs. The success probabilities have also been calculated and discussed for both the ECPs. We have further compared the success probabilities of our first ECP for 3-mode GHZ-type ECS with an ECP of 3-mode W-type ECS and found that our ECP is more efficient (maximal success probabilities) for larger value (\beta=0.7) of state parameter. For the physical realization, two optical circuits (for two ECPs) using linear optical elements, viz 50:50 beam splitter, phase shifter, and photon detectors are provided, which support the future experimental implementation possible with the present technology. Comment: 9 pages, 5 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1007/s10773-021-04785-1 |
| URL الوصول: | http://arxiv.org/abs/2007.07014 |
| رقم الأكسشن: | edsarx.2007.07014 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1007/s10773-021-04785-1 |
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