output
19932026
researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions
Showing 2015 · gr-qcShow all

3 papers · 2 filters

gr-qc2015★ 22 cited

f(R) gravity on non-linear scales: The post-Friedmann expansion and the vector potential

Daniel B Thomas, Marco Bruni, Kazuya Koyama +2

Many modified gravity theories are under consideration in cosmology as the source of the accelerated expansion of the universe and linear perturbation theory, valid on the largest…

gr-qc2015

Cosmic evolution of scalar fields with multiple vacua: generalized DBI and quintessence

Changjun Gao, You-Gen Shen

We find a method to rewrite the equations of motion of scalar fields, generalized DBI field and quintessence, in the autonomous form for\emph{arbitrary} scalar potentials. With the…

gr-qc2015★ 6 cited

Quintessence and phantom emerging from the split-complex field and the split-quaternion field

Changjun Gao, Xuelei Chen, You-Gen Shen

Motivated by the mathematic theory of split-complex numbers (or hyperbolic numbers, also perplex numbers) and the split-quaternion numbers (or coquaternion numbers), we define the…