4 papers
Graviton Self-Energy from Gravitons in Cosmology
L. Tan, N. C. Tsamis, R. P. Woodard
Although matter contributions to the graviton self-energy $-i[\mbox{}^{μν} Σ^{ρσ}](x;x')$ must be separately conserved on and , graviton contributions obey the weaker…
Urca Cooling in Neutron Star Crusts and Oceans: Effects of Nuclear Excitations
Long-Jun Wang, Liang Tan, Zhipan Li +2
The excited-state structure of atomic nuclei can modify nuclear processes in stellar environments. In this work, we study the influence of nuclear excitations on Urca cooling (repe…
Bose-Fermi Cancellation of Cosmological Coleman-Weinberg Potentials
S. P. Miao, L. Tan, R. P. Woodard
Cosmological Coleman-Weinberg potentials are induced when normal matter is coupled to the inflaton. It has long been known that the corrections from bosonic fields are positive whe…
Structure Formation in Nonlocal MOND
L. Tan, R. P. Woodard
We consider structure formation in a nonlocal, metric-based realization of Milgrom's MOdified Newtonian Dynamics (MOND). We derive the general equations for linearized scalar pertu…