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单光子纠缠态的纠缠转移和量子隐形传态(英文) 被引量:24
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作者 蔡新华 聂建军 郭杰荣 《光子学报》 EI CAS CSCD 北大核心 2006年第5期776-779,共4页
使用光学分束器和单光子源,利用单光子态和真空态制备出了纠缠单光子态.利用光学分束器作用和单光子探测,实现了三个通讯伙伴之间的纠缠转移.提出了一个关于纠缠单光子态的量子隐形传态方案.在这个方案中,被传送的是一个未知的单光子纠... 使用光学分束器和单光子源,利用单光子态和真空态制备出了纠缠单光子态.利用光学分束器作用和单光子探测,实现了三个通讯伙伴之间的纠缠转移.提出了一个关于纠缠单光子态的量子隐形传态方案.在这个方案中,被传送的是一个未知的单光子纠缠态.通讯双方使用的量子信道是两个单光子纠缠态.通过使用分束器作用和对输出态进行光子测量以及在经典信息的帮助下,纠缠转移和量子隐形传态的过程被完成. 展开更多
关键词 量子信息 量子纠缠 纠缠转移 量子隐形传态
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On the Quantum Entanglement Reinterpretation Using the Time as Real Instantaneous Signal Field
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作者 Elsadig Naseraddeen 《Journal of Modern Physics》 2017年第6期853-891,共39页
In relativistic mechanics the time-like vector characterize the motion in spacetime with speed faster than the speed of light in vacuum c in which the line element ds2=c2dt2-dx2-dx2-dz2 is less than zero (where is inf... In relativistic mechanics the time-like vector characterize the motion in spacetime with speed faster than the speed of light in vacuum c in which the line element ds2=c2dt2-dx2-dx2-dz2 is less than zero (where is infinitesimal change in time, and are infinitesimal change in space), thus the time in relativistic mechanics can instantaneously flow [1], however in quantum mechanics although the time is treated as unobservable parameter (without any Hermitian observable operator have engine-value equivalent to time) any two physical quantity described by two non-commuting observable operatorsand fulfill , the knowledge of one immediately produce the knowledge of the other [2], thus in quantum mechanics if two particles interacted in finite temporal epoch and then separated in space the gaining of knowledge by the local measurement of physical quantity runs on one them (for example the measurement of spin direction of one particle using Stern-Gerlach experiment) immediately produce the knowledge of the complementary physical quantity of the other particle (for example the opposite spin direction of the other particle), this simply called quantum entanglement the concept that so much advanced after publication of the Jon Bell’s 1964 celebrated paper [3] in which he illustrated that we can add parameters to quantum mechanics to determine the results of individual measurements, without changing the statistical predictions, and then he conclude “there must be a mechanism whereby the setting of one measuring device can influence the reading of another instrument, however remote. Moreover, the signal involved must propagate instantaneously so that such a theory could not be Lorentz invariant”. The question now what these signals that can propagate instantaneously? The answer in this paper will be the time signals field which is defined for each constituent matter particle M and at each space point P as the measure of the total length of all occupation and leaving epochs of P by M which is representing a sequence func 展开更多
关键词 REAL-TIME STATE REAL-TIME DIGITAL STATE REAL-TIME Transition STATE entanglement translation DIGITAL Levels Calculus of Fluctuations Fluctuation Tensor FIELD Collinear SPACE Coplanar SPACE
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连续两体纠缠态分解方法研究 被引量:2
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作者 公丕锋 张金锋 《牡丹江师范学院学报(自然科学版)》 2018年第2期34-38,共5页
在引入二粒子纠缠态表象|η〉的基础上,由平移算符D(η)导出此纠缠态在坐标表象、动量表象中的Schmidt分解,论述其在双模压缩态方面的应用.
关键词 纠缠态 平移算符 压缩算符
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