(4) 宇宙学:暗能量

    A. Cosmology with interaction between phantom dark energy and dark matter and the

       coincidence problem.

       Rong-Gen Cai, Anzhong Wang.

        JCAP 0503:002,2005, hep-th/0411025

    B. K-chameleon and the coincidence problem.

       Hao Wei, Rong-Gen Cai.

        Phys.Rev.D71:043504,2005, hep-th/0412045

    C. First law of thermodynamics and Friedmann equations of Friedmann-Robertson-Walker universe.

       Rong-Gen Cai, Sang Pyo Kim.

        JHEP 0502:050,2005, hep-th/0501055

    D. Hessence: A New view of quintom dark energy.

       Hao Wei, Rong-Gen Cai, Ding-Fang Zeng.

        Class.Quant.Grav.22:3189-3202,2005, hep-th/0501160

    E. Crossing w=-1 in Gauss-Bonnet brane world with induced gravity.

       Rong-Gen Cai, Hong-Sheng Zhang, Anzhong Wang.

        Commun.Theor.Phys.44:948,2005, hep-th/0505186

    F. Cosmological evolution of hessence dark energy and avoidance of big rip.

       Hao Wei, Rong-Gen Cai.

        Phys.Rev.D72:123507,2005, astro-ph/0509328

    G. A note on crossing the phantom divide in hybrid dark energy model.

       Hao Wei, Rong-Gen Cai.

       Phys.Lett.B634:9-13,2006, astro-ph/0512018  

    H. Interacting vector-like dark energy, the first and second cosmological coincidence problems.

        Hao Wei , Rong-Gen Cai.

        Phys.Rev.D73:083002,2006, astro-ph/0603052