I am interested in understanding whether General Relativity needs improvements in extreme limits such as on very large scales and in the strong gravity regime. This involves two approaches: One is to study the theoretical consistency of possible modifications from the point of view of classical and quantum field theory; The other is to investigate whether these corrections do a better job in explaining the observational data. One simple and well-motivated correction is to let the graviton have a small mass so that gravity deviates significantly from General Relativity beyond the graviton's Compton wavelength, which may as well be the origin of the late-time cosmic acceleration (or dark energy). In the other limit, gravitational wave astronomy is becoming a powerful channel to test General Relativity in strong gravity events such as mergers of black holes and neutron stars. Additionally, I am also interested in non-topological solitons in field theory and their roles in the early universe.
(See http://inspirehep.net/author/profile/Shuang.Yong.Zhou.1 for my research profile.)
My recent research interests:
1. Field theoretical and gravitational aspects of massive gravity;
2. Test General Relativity in the strong gravity regime with gravitational waves and other observations and using various numerical tools;
3. Graviton mass bounds;
4. Gravitational waves from the early universe.
Selected recent publications:
* Can the graviton have a large mass near black holes? Jun Zhang, SYZ, arXiv:1709.07503[gr-qc].
* UV complete me: Positivity Bounds for Particles with Spin, Claudia de Rham, Scott Melville, Andrew J. Tolley, SYZ, arXiv:1706.02712[hep-th].
* Graviton Mass Bounds, Claudia de Rham, J. Tate Deskins, Andrew J. Tolley, SYZ, Rev.Mod.Phys. 89 (2017), 025004 (Review Article); arXiv:1606.08462[astro-ph.CO].
* The Λ_2 limit of massive gravity, Claudia de Rham, Andrew J. Tolley, SYZ, JHEP 1604 (2016) 188; arXiv:1602.03721[hep-th].
* Charge-Swapping Q-balls, Edmund J. Copeland, Paul M. Saffin, SYZ, Phys.Rev.Lett. 113 (2014), 231603 (Editors' Suggestion); arXiv:1409.3232[hep-th].
* Black hole hair in generalized scalar-tensor gravity, Thomas P. Sotiriou, SYZ, Phys.Rev.Lett. 112 (2014) 251102, arXiv:1312.3622[gr-qc].
* Mass-Varying Massive Gravity, Qing-Guo Huang, Yun-Song Piao, SYZ, Phys.Rev. D86 (2012) 124014; arXiv:1206.5678[hep-th].
Full list of publications and citations: