该平台采用C#Visual Studio 2010的C/S架构,本文主要介绍该平台的数据处理和监测预警模块的实现过程。实现了:(1)实时小时雨量、风力、能见度、高低温等气象要素的快速监测;(2)任意时段气象要素快速统计和相应气象预警服务短信和word决...该平台采用C#Visual Studio 2010的C/S架构,本文主要介绍该平台的数据处理和监测预警模块的实现过程。实现了:(1)实时小时雨量、风力、能见度、高低温等气象要素的快速监测;(2)任意时段气象要素快速统计和相应气象预警服务短信和word决策服务材料生成等功能。该平台已业务运行近3年,弥补了Ewips、Swan等日常气象业务平台暂时无法实现的功能,该平台操作简单、自动化程度高、预警时间快,提高了灾害性天气短信直报业务的工作效率。展开更多
This study proposes the first high-capacity quantum secure direct communication(QSDC) with two-photon six-qubit hyperentangled Bell states in two longitudinal momentum and polarization degrees of freedom(DOFs) of phot...This study proposes the first high-capacity quantum secure direct communication(QSDC) with two-photon six-qubit hyperentangled Bell states in two longitudinal momentum and polarization degrees of freedom(DOFs) of photon pairs, which can be generated using two 0.5 mm-thick type-I β barium borate crystal slabs aligned one behind the other and an eight-hole screen. The secret message can be independently encoded on the photon pairs with 64 unitary operations in all three DOFs. This protocol has a higher capacity than previous QSDC protocols because each photon pair can carry 6 bits of information, not just 2 or 4 bits.Our QSDC protocol decreases the influence of decoherence from environment noise by exploiting the decoy photons to check the security of the transmission of the first photon sequence. Compared with two-way QSDC protocols, our QSDC protocol is immune to an attack by an eavesdropper using Trojan horse attack strategies because it is a one-way quantum communication.The QSDC protocol has good applications in the future quantum communication because of all these features.展开更多
文摘该平台采用C#Visual Studio 2010的C/S架构,本文主要介绍该平台的数据处理和监测预警模块的实现过程。实现了:(1)实时小时雨量、风力、能见度、高低温等气象要素的快速监测;(2)任意时段气象要素快速统计和相应气象预警服务短信和word决策服务材料生成等功能。该平台已业务运行近3年,弥补了Ewips、Swan等日常气象业务平台暂时无法实现的功能,该平台操作简单、自动化程度高、预警时间快,提高了灾害性天气短信直报业务的工作效率。
基金supported by the National Natural Science Foundation of China (Grant Nos. 11474027, 61675028, and 11674033)the Fundamental Research Funds for the Central Universities (Grant No. 2015KJJCA01)the National High Technology Research and Development Program of China(Grant No. 2013AA122902)
文摘This study proposes the first high-capacity quantum secure direct communication(QSDC) with two-photon six-qubit hyperentangled Bell states in two longitudinal momentum and polarization degrees of freedom(DOFs) of photon pairs, which can be generated using two 0.5 mm-thick type-I β barium borate crystal slabs aligned one behind the other and an eight-hole screen. The secret message can be independently encoded on the photon pairs with 64 unitary operations in all three DOFs. This protocol has a higher capacity than previous QSDC protocols because each photon pair can carry 6 bits of information, not just 2 or 4 bits.Our QSDC protocol decreases the influence of decoherence from environment noise by exploiting the decoy photons to check the security of the transmission of the first photon sequence. Compared with two-way QSDC protocols, our QSDC protocol is immune to an attack by an eavesdropper using Trojan horse attack strategies because it is a one-way quantum communication.The QSDC protocol has good applications in the future quantum communication because of all these features.
