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Quantum Decoherence of Neutrino Oscillation and Weak Measurement about Its Group Velocity
  • ISSN号：0253-6102
  • 期刊名称：《理论物理通讯：英文版》
  • 时间：0
  • 分类：O572.321[理学—粒子物理与原子核物理;理学—物理]
  • 作者机构：State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, University of the Chinese Academy of Sciences, Beijing Computational Science Research Center
  • 相关基金：Supported by the National Natural Science Foundation of China under Grant Nos.11121403,10935010 and 11074261;the National 973 program under Grant Nos.2012CB922104 and 2014CB921403
作者： 玉素甫·吐拉克, 徐大智
关键词： WEAK, MEASUREMENT, NEUTRINO, OSCILLATION, group, VELOCITY, SHIFT, weak measurement, neutrino oscillation, group velocity shift
中文摘要：

We theoretically explore the possibility of observing the quantum decoherence of neutrino oscillation due to the vacuum dispersion, that the wave-packet of neutrino spatially splits according to the different velocities of two mass eigenstates. We find that if this decoherence could be observed and the range of values of the mixing angle is known, then the superluminal neutrino phenomena could occur for some mixing angles as the consequence of a weak measurement about flavor mixing in the neutrino propagation. Our calculation gives the explicit dependence of group velocity shift to the decoherence factor and the weak value of neutrino’s pre and post-selected states. We also study the related problems for the neutrino oscillation with three generations.

英文摘要：

We theoretically explore the possibility of observing the quantum decoherence of neutrino oscillation due to the vacuum dispersion, that the wave-packet of neutrino spatially splits according to the different velocities of two mass eigenstates. We find that if this decoherence could be observed and the range of values of the mixing angle is known, then the superluminal neutrino phenomena could occur for some mixing angles as the consequence of a weak measurement about flavor mixing in the neutrino propagation. Our calculation gives the explicit dependence of group velocity shift to the decoherence factor and the weak value of neutrino’s pre and post-selected states. We also study the related problems for the neutrino oscillation with three generations.

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期刊信息
  • 《理论物理通讯：英文版》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中科院理论物理所 中国物理学会
  • 主编：孙昌浦
  • 地址：北京2735邮政信箱 中国科学院理论物理研究所编辑部
  • 邮编：100190
  • 邮箱：ctp@itp.ac.cn
  • 电话：010-62551495 62541813 62550630
  • 国际标准刊号：ISSN：0253-6102
  • 国内统一刊号：ISSN：11-2592/O3
  • 邮发代号:
  • 获奖情况:
  • 首届国家期刊奖,中国科学院优秀期刊特别奖,国家期刊奖百种重点期刊,中国期刊方阵“双高”期刊
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  • 被引量:342