Controlling of Entropic Uncertainty in Qubits System Under the Generalized Amplitude Damping Channel via Weak Measurements

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• 作者：Shi-Yang Zhang ; Mao-Fa Fang ; Min Yu
• 关键词：Entropic uncertainty relation ; Weak measurement ; Quantum noise ; Entanglement
• 刊名：International Journal of Theoretical Physics
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：55
• 期：3
• 页码：1824-1832
• 全文大小：668 KB
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• 作者单位：Shi-Yang Zhang (1)
  Mao-Fa Fang (1)
  Min Yu (1)
  
  1. Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, and Department of Physics, Hunan Normal University, Changsha, 410081, People’s Republic of China
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Physics
  Quantum Physics
  Elementary Particles and Quantum Field Theory
  Mathematical and Computational Physics
  
• 出版者：Springer Netherlands
• ISSN：1572-9575

文摘

We study the effect of weak measurements on the entropic uncertainty in two-qubit system under the generalized amplitude damping channel. Our results show that, the entropic uncertainty in qubits system can be reduced under weak measurements by choosing appropriate measuring strength, which provides a new method to break through the restriction of uncertainty relation in quantum mechanics. Keywords Entropic uncertainty relation Weak measurement Quantum noise Entanglement