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5 papers · 2 filters
Critical comments on the paper "Crossing by a single scalar field on a Dvali-Gabadadze-Porrati brane" by H Zhang and Z-H Zhu [Phys.Rev.D75,023510(2007)]
Israel Quiros, Ricardo Garcia-Salcedo, Claudia Moreno
It is demonstrated that the claim in the paper "Crossing by a single scalar field on a Dvali-Gabadadze-Porrati brane" by H Zhang and Z-H Zhu [Phys.Rev.D75,023510(2007)], abo…
Effective Scenario of Loop Quantum Cosmology
You Ding, Yongge Ma, Jinsong Yang
Semiclassical states in isotropic loop quantum cosmology are employed to show that the improved dynamics has the correct classical limit. The effective Hamiltonian for the quantum…
Proof of the entropy bound on dynamical horizons
Sijie Gao, Xiaoning Wu
The entropy bound conjecture concerning black hole dynamical horizons is proved. The conjecture states, if a dynamical horizon, , is bounded by two surfaces with areas of $A_B…
A covariant entropy bound conjecture on the dynamical horizon
Song He, Hongbao Zhang
As a compelling pattern for the holographic principle, our covariant entropy bound conjecture is proposed for more general dynamical horizons. Then we apply our conjecture to CD…
A new class of plane symmetric solution
Hongsheng Zhang, Hyerim Noh, Zong-Hong Zhu
A new class of static plane symmetric solution of Einstein field equation generated by a perfect fluid source is put forward. A special family of this new solution is investigated…