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Testing Bell inequality at experiments of high energy physics
  • ISSN号:1674-1137
  • 期刊名称:《中国物理C:英文版》
  • 时间:0
  • 分类:O413.1[理学—理论物理;理学—物理] O4-33[理学—物理]
  • 作者机构:[1]Department of Physics, Nankai University, Tianjin 300071, China, [2]Department of Physics, Tianjin University, Tianjin 300072, China, [3]Department of Physics, Graduate University of Chinese Academy of Sciences, Beijing 100049, China, [4]Institute of High Energy Physics, CAS, Beijing 100049, China
  • 相关基金:Supported by NSFC (10775073) and Special Grant for Ph.D. Programs of Education Ministry of China
中文摘要:

Besides using the laser beam, it is very tempting to directly testify the Bell inequality at high energy experiments where the spin correlation is exactly what the original Bell inequality investigates. In this work, we follow the proposal raised in literature and use the successive decays J/ψ→γηc→ΛΛˉ→pπ-pˉπ+ to testify the Bell inequality. Our goal is twofold, namely, we first make a Monte-Carlo simulation of the processes based on the quantum field theory (QFT). Since the underlying theory is QFT, it implies that we pre-admit the validity of quantum picture. Even though the QFT is true, we need to find how big the database should be, so that we can clearly show deviations of the correlation from the Bell inequality determined by the local hidden variable theory. There have been some critiques on the proposed method, so in the second part, we suggest some improvements which may help to remedy the ambiguities indicated by the critiques. It may be realized at an updated facility of high energy physics, such as BES Ⅲ.

英文摘要:

Besides using the laser beam, it is very tempting to directly testify the Bell inequality at high energy experiments where the spin correlation is exactly what the original Bell inequality investigates. In this work, we follow the proposal raised in literature and use the successive decays J/ψ →γηc→ ∧∧ → pπ^- pπ^+ to testify the Bell inequality. Our goal is twofold, namely, we first make a Monte-Carlo simulation of the processes based on the quantum field theory (QFT). Since the underlying theory is QFT, it implies that we pre-admit the validity of quantum picture. Even though the QFT is true, we need to find how big the database should be, so that we can clearly show deviations of the correlation from the Bell inequality determined by the local hidden variable theory. There have been some critiques on the proposed method, so in the second part, we suggest some improvements which may help to remedy the ambiguities indicated by the critiques. It may be realized at an updated facility of high energy physics, such as BES III.

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期刊信息
  • 《中国物理C:英文版》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国物理学会 中国科学院高能物理研究所 中国科学院近代物理研究所
  • 主编:王贻芳
  • 地址:北京市玉泉路19号(乙)
  • 邮编:100049
  • 邮箱:cpc@mail.ihep.ac.cn
  • 电话:010-88235947
  • 国际标准刊号:ISSN:1674-1137
  • 国内统一刊号:ISSN:11-5641/O4
  • 邮发代号:2-522
  • 获奖情况:
  • 2000年获中国科学院优秀期刊评比一等奖,中国期刊方阵“双百”期刊
  • 国内外数据库收录:
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  • 被引量:189