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Chinese Physics C > 2021, Vol. 45 > Issue(12): 125102 DOI: 10.1088/1674-1137/ac2946

Observational constraint on dark energy from quantum uncertainty

  • 1.

    Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi 830011, China

  • 2.

    Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, Nanjing 210008, China

  • 3.

    Key Laboratory of Radio Astrophysics in Xinjiang Province, Urumqi 830011, China

  • 4.

    University of Chinese Academy of Sciences, Beijing 100049, China

  • We explore the theoretical possibility that dark energy density is derived from massless scalar bosons in vacuum and present a physical model for dark energy. By assuming massless scalar bosons fall into the horizon boundary of the cosmos with the expansion of the universe, we can deduce the uncertainty in the relative position of scalar bosons based on the quantum fluctuation of space-time and the assumption that scalar bosons satisfy P-symmetry under the parity transformation $ {P}\varphi ({r}) = - \varphi ({r})$ , which can be used to estimate scalar bosons and dark energy density. Furthermore, we attempt to explain the origin of negative pressure from the increasing entropy density of the Boltzmann system and derive the equation for the state parameter, which is consistent with the specific equations of state for dark energy. Finally, we employ the SNIa Pantheon sample and Planck 2018 CMB angular power spectra to constrain the models and provide statistical results for the cosmology parameters.
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Long Huang, Xiaofeng Yang and Xiang Liu. Observational constraint on Dark Energy from Quantum Uncertainty[J]. Chinese Physics C. doi: 10.1088/1674-1137/ac2946
Long Huang, Xiaofeng Yang and Xiang Liu. Observational constraint on Dark Energy from Quantum Uncertainty[J]. Chinese Physics C. doi:10.1088/1674-1137/ac2946 shu
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Received: 2021-08-06
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    Observational constraint on dark energy from quantum uncertainty

      Corresponding author:Xiaofeng Yang,xfyang@xao.ac.cn
    • 1. Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi 830011, China
    • 2. Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, Nanjing 210008, China
    • 3. Key Laboratory of Radio Astrophysics in Xinjiang Province, Urumqi 830011, China
    • 4. University of Chinese Academy of Sciences, Beijing 100049, China
    • Received Date:2
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