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Showing 2010 · gr-qcShow all
3 papers · 2 filters
gr-qc2010★ 35 cited
An approach toward the laboratory search for the scalar field as a candidate of Dark Energy
Yasunori Fujii, Kensuke Homma
The observed accelerating universe indicates the presence of Dark Energy which is probably interpreted in terms of an extremely light gravitational scalar field. We suggest a way t…
gr-qc2010★ 4 cited
Discretisation parameter and operator ordering in loop quantum cosmology with the cosmological constant
Tomo Tanaka, Fumitoshi Amemiya, Masahiro Shimano +2
In loop quantum cosmology, the Hamiltonian reduces to a finite difference operator. We study the initial singularity and the large volume limit against the ambiguities in the discr…
gr-qc2010★ 32 cited
Black Hole in the Expanding Universe with Arbitrary Power-Law Expansion
Kei-ichi Maeda, Masato Nozawa
We present a time-dependent and spatially inhomogeneous solution that interpolates the extremal Reissner-Nordström (RN) black hole and the Friedmann-Lemaître-Robertson-Walker (FLRW…