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点目标的红外辐射特性测量方法 被引量:13
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作者 曹立华 万春明 +1 位作者 张云峰 李宁 《红外与毫米波学报》 SCIE EI CAS CSCD 北大核心 2015年第4期460-464,共5页
首先给出了红外辐射特性测量的基本原理,对于点目标,由于光学系统的衍射作用,经过光学系统成像为一个弥散斑,由于弥散的原因,点目标的辐射特性测量精度一般都非常低,针对这种情况,提出了一种基于辐射能量守恒的点目标辐射特性测量优化算... 首先给出了红外辐射特性测量的基本原理,对于点目标,由于光学系统的衍射作用,经过光学系统成像为一个弥散斑,由于弥散的原因,点目标的辐射特性测量精度一般都非常低,针对这种情况,提出了一种基于辐射能量守恒的点目标辐射特性测量优化算法,给出了算法的具体原理和实现过程;最后,为了验证算法的有效性,在实验室里利用平行光管和点目标模拟装置进行了点目标辐射特性测量实验,并对试验结果进行了系统分析,结果表明,经过优化算法后,点目标的辐射测量精度优于10%,表明点目标辐射特性测量优化算法在实际应用中有很广泛的前景. 展开更多
关键词 红外辐射 辐射特性测量 点目标 辐射能量守恒
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Quantum Tunneling Radiation of Reissner-Nordstrom de Sitter Black Hole with a Global Monopole 被引量:2
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作者 JIANG Qing-Quan YANG Shu-Zheng LI Hui-Ling 《Communications in Theoretical Physics》 SCIE CAS CSCD 2006年第3期457-460,共4页
Applying Parikh's quantum tunneling model, we study the quantum tunneling radiation of Reissne- Nordstrom de Sitter black hole with a global monopole. The result shows that the tunneling rates at the event horizon an... Applying Parikh's quantum tunneling model, we study the quantum tunneling radiation of Reissne- Nordstrom de Sitter black hole with a global monopole. The result shows that the tunneling rates at the event horizon and the cosmic horizon are related to Bekenstein-Hawking entropy if we take the energy conservation into consideration, and the true radiate spectrum is not precisely thermal. 展开更多
关键词 Reissner-Nordstrom de Sitter black hole global monopole energy conservation tunneling rate
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Quantum Tunneling Radiation of Kerr-NUT Black Hole
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作者 LI Hui-Ling YANG Shu-Zheng QI De-Jiang 《Communications in Theoretical Physics》 SCIE CAS CSCD 2006年第6X期991-994,共4页
Based on particles in a dynamical geometry, extending the Parikh 's method of quantum tunneling, radiation, we deeply investigate the quantum tunneling radiation of Kerr-NUT bhck hole. When self-gravitating action, e... Based on particles in a dynamical geometry, extending the Parikh 's method of quantum tunneling, radiation, we deeply investigate the quantum tunneling radiation of Kerr-NUT bhck hole. When self-gravitating action, energy conservation, and angular momentum conservation are taken into account, the emission rate of the particle on the event horizon is related to the change of Bekenstein-Hawking entropy and the emission spectrum is not precisely thermal, but is consistent with an underlying unitary theory. 展开更多
关键词 Kerr-NUT black hole energy conservation angular momentum conservation tunneling rate
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用量子隧穿法研究带质量四极矩静态黑洞的Hawking辐射 被引量:9
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作者 韩亦文 《物理学报》 SCIE EI CAS CSCD 北大核心 2005年第11期5018-5021,共4页
对带质量四极矩的静态黑洞Hawking辐射的隧穿过程进行了简单直接的推导,得到了热谱.因推导过程应用了能量守恒定律,故真正的辐射不一定是纯热的.这一结果支持了这样一种观点:隧穿的辐射携带信息是可能的.
关键词 黑洞 辐射 隧穿 能量守恒 HAWKING辐射 质量四极矩 量子隧穿 黑洞 能量守恒定律 推导过程 隧穿过程
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One Hair Postulate for Hawking Radiation as Tunneling Process
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作者 DONG Hui CAI Qing-Yu +1 位作者 LIU Xu-Feng SUN Chang-Pu 《Communications in Theoretical Physics》 SCIE CAS CSCD 2014年第3期289-292,共4页
For Hawking radiation, treated as a tunneling process, the no-hair theorem of black hole together with the law of energy conservation is utilized to postulate that the tunneling rate only depends on the external quali... For Hawking radiation, treated as a tunneling process, the no-hair theorem of black hole together with the law of energy conservation is utilized to postulate that the tunneling rate only depends on the external qualities(e.g., the mass for the Schwarzschild black hole) and the energy of the radiated particle. This postulate is justified by the WKB approximation for calculating the tunneling probability. Based on this postulate, a general formula for the tunneling probability is derived without referring to the concrete form of black hole metric. This formula implies an intrinsic correlation between the successive processes of the black hole radiation of two or more particles. It also suggests a kind of entropy conservation and thus resolves the puzzle of black hole information loss in some sense. 展开更多
关键词 tunneling formulism modified probability correlation entropy conservation black hole
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