| Accessible Information for Equally-Distant Partially-Entangled Alphabet State Resource |
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| 作者单位： | HAO San-ru(Calculating Physics Division, Dcpartment of Computer Teaching, Hunan Normal University, Changsha 410081, China;Institute of Modern Physics, Northwest University, Xi'an 710069, China);HOU Bo-Yu,XI Xiao-qiang,YUE Rui-Hong(Institute of Modern Physics, Northwest University, Xi'an 710069, China)
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| 基金项目： | 科技部资助项目，湖南省科技厅基础研究项目 |
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| 摘 要： | We have proposed a quantum system with equally-distant partially-entangled alphabet states which has the minimal mutual overlap and the highly distinguishability,these quantum states are used as the “signal states” of the quantum communication.We have also constructed the positive operator-valued measure for these “signal states” and discussed their entanglement properties and measurement of cntanglement.We calculate the accessible information for these alphabet states and show that the accessible information is closely related to the entanglement of the “signal states”:the higher the entanglement of the “signal states”,the better the accessible information of the quantum system,and the accessible information reaches its maximal value when the alphabet states have their maximal entanglement.
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| 关 键 词： | 量子系统 可获信息 部分交缠态 |
Accessible Information for Equally-Distant Partially-Entangled Alphabet State Resource |
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| Authors: | HAO San-ru HOU Bo-Yu XI Xiao-qiang YUE Rui-Hong |
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| Abstract: | We have proposed a quantum system with equally-distant partially-entangled alphabet states which hasthe minimal mutual overlap and the highly distinguishability, these quantum states are used as the "signal states" ofthe quantum communication. We have also constructed the positive operator-valued measure for these "signal states"and discussed their entanglement properties and measurement of cntanglement. We calculate the accessible informationfor these alphabet states and show that the accessible information is closely related to the entanglement of the "signalstates": the higher the entanglement of the "signal states", the better the accessible information of the quantum system.and the accessible information reaches its maximal value when the alphabet states have their maximal entanglemcnt. |
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| Keywords: | accessible information alphabet states POVM entanglement |
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