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9 Result(s)

within H Q Lu Remove this filter Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics) Remove this filter

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  1. No Access

    Article

    Om diagnostic for dilaton dark energy

    Om diagnostic can differentiate between different models of dark energy without the accurate current value of matter density. We apply this geometric diagnostic to dilaton dark energy (DD...

    Z. G. Huang, H. Q. Lu, K. Zhang in Astrophysics and Space Science (2011)

  2. No Access

    Article

    Cosmology with non-linear scalar field

    Mukhanov and Vikman have studied inflation model with the non-linear (NL) scalar field. We discuss the dark energy model with the Lagrangian in the presence of the square potential. We analyse the sufficient c...

    Kai Zhang, H. Q. Lu, Wei Fang, Z. G. Huang in Astrophysics and Space Science (2010)

  3. No Access

    Article

    Parametrization of Born-Infeld type phantom dark energy model

    Applying the parametrization of dark energy density, we can construct directly independent-model potentials. In Born-Infeld type phantom dark energy model, we consider four special parametrization equation of ...

    Z. G. Huang, H. Q. Lu, W. Fang in Astrophysics and Space Science (2009)

  4. No Access

    Article

    Statefinder diagnostic for dilaton dark energy

    Statefinder diagnostic is a useful method which can differ one dark energy model from the others. The Statefinder pair {r,s} is algebraically related to the equation of state of dark energy and its first time der...

    Z. G. Huang, X. M. Song, H. Q. Lu, W. Fang in Astrophysics and Space Science (2008)

  5. No Access

    Article

    The Evolution of Dilatonic Universe with a Double Exponential Potential

    In this paper, dilaton in Weyl-Scaled induced gravitational theory is regarded as a candidate of dark energy. When the potential of dilaton field is taken as the form of a double exponential $$...

    Z. G. Huang, H. Q. Lu, W. Fang, K. F. Zhang in Astrophysics and Space Science (2006)

  6. No Access

    Article

    The deviation of light path in Einstein–Brans–Dicke theory

    Both Jordan–Brans–Dicke (shortened JBD) theory and Brans–Dicke theory in the Einstein’s frame (shortened EBD) are treated as Brans–Dicke theory. However, we learn that only Pauli metric represents the massless...

    Z. G. Huang, H. Q. Lu, P. P. Pan in Astrophysics and Space Science (2005)

  7. No Access

    Article

    Inflation in Bianchi type-IX Einstein-Cartan Cosmological Model

    Within the framework of Einstein-Cartan theory with Weyssenhoff fluid, we investigate an inflation model for an anisotropic Bianchi type-IX cosmological model. The system of field equations is solved numerical...

    K.H. Kong, P.C.H. Cheung, H.Q. Lu, K.S. Cheng in Astrophysics and Space Science (1998)

  8. No Access

    Article

    Contribution of Vacuum Field to Angular Deviation of Light Path and Radar Echo Delay

    The discovery of ‘twin quasistellar objects’ arose interests among astronomers and astrophysicists to study gravitational lensing problems. The deviation of light from its straight line path is caused by two s...

    H.Q. Lu, P.C.W. Fung in Astrophysics and Space Science (1997)

  9. No Access

    Article

    The cosmological model of Brans-Dicke theory

    We use the generalized Brans-Dicke theory, in which the Pauli metric is identified to be the physical space-time metric, to study the Universe in different epochs. Exact analytical expressions for dilaton fiel...

    H. Q. Lu, K. S. Cheng in Astrophysics and Space Science (1996)