76 citations · 245 across the 7 of their papers we have counts for
7 papers
Phenomenology of wavelike vector dark matter nonminimally coupled to gravity
Hong-Yi Zhang, Siyang Ling
We study three astrophysical/cosmological consequences of nonminimal couplings to gravity in wavelike vector dark matter. In the nonrelativistic limit, the nonminimal coupling with…
A singularity problem for interacting massive vectors
Zong-Gang Mou, Hong-Yi Zhang
Interacting massive spin-1 fields have been widely used in cosmology and particle physics. We obtain a new condition on the validity of the classical limit of these theories relate…
Polarized Vector Oscillons
Hong-Yi Zhang, Mudit Jain, Mustafa A. Amin
Oscillons are spatially localized, time-periodic and long-lived configurations that were primarily proposed in scalar field theories with attractive self-interactions. In this lett…
Spectral analysis and long-time asymptotics of complex mKdV equation
Hong-Yi Zhang, Yu-Feng Zhang
In this paper, we obtain the long-time asymptotics of complex mKdV equation via Defit-Zhou method (Non-linear steepest descent method). The Cauchy problem of complex mKdV equation…
Beyond Schrödinger-Poisson: Nonrelativistic Effective Field Theory for Scalar Dark Matter
Borna Salehian, Hong-Yi Zhang, Mustafa A. Amin +2
Massive scalar fields provide excellent dark matter candidates, whose dynamics are often explored analytically and numerically using nonrelativistic Schrödinger-Poisson (SP) equati…
Gravitational effects on oscillon lifetimes
Hong-Yi Zhang
Many scalar field theories with attractive self-interactions support exceptionally long-lived, spatially localized and time-periodic field configurations called oscillons. A detail…
Classical Decay Rates of Oscillons
Hong-Yi Zhang, Mustafa A. Amin, Edmund J. Copeland +2
Oscillons are extremely long-lived, spatially-localized field configurations in real-valued scalar field theories that slowly lose energy via radiation of scalar waves. Before thei…