123 citations · 159 across the 9 of their papers we have counts for
9 papers
Core-Halo Mass Relation in Cosmological Vector Dark Matter
Jiajun Chen, Yonghao Yao, David J. E. Marsh
We study the cosmological core-halo relation in vector dark matter using three-component Schrödinger-Poisson simulations. Starting from cosmological vector-field initial conditions…
Spin Polarization of Proca Stars Formed by Gravitational Bose--Einstein Condensation
Jiajun Chen
We study the internal spin polarization of Proca stars formed by gravitational Bose--Einstein condensation of a three-component nonrelativistic vector field. In idealized periodic-…
Yukawa-Screened Bose-Star Condensation
Jiajun Chen
We study Bose-star formation in a Yukawa-Schrödinger-Poisson (YSP) system. A finite interaction range suppresses the infrared kinetic relaxation responsible for Bose-star condensat…
Self-Interaction Controls Vortex Scale in Soliton Mergers
Yuanyuan Zeng, Bokai Zhang, Jiajun Chen
This study investigates the impact of self-interaction strength on the formation and scale of turbulent vortex structures during the merger of Bose stars, using numerical simulatio…
Vector Dark Matter Halo: From Polarization Dynamics to Direct Detection
Jiajun Chen, Le Hoang Nguyen, David J. E. Marsh
This study investigates the characteristic polarization formation and evolution of vector dark matter (VDM) in the outer halo of galaxies. By employing numerical simulations, we an…
Novel structures and collapse of solitons in nonminimally gravitating dark matter halos
Jiajun Chen, Hong-Yi Zhang
Ultralight dark matter simulations predict condensates with short-range correlation, known as solitons or boson stars, at the centers of dark matter halos. This paper investigates…
Gravitational Bose-Einstein Condensation of Vector/Hidden Photon Dark Matter
Jiajun Chen, Xiaolong Du, Mingzhen Zhou +2
We study the gravitational Bose-Einstein condensation of a massive vector field in the kinetic regime and the non-relativistic limit using non-linear dynamical numerical methods. G…
Relaxation times for Bose-Einstein condensation by self-interaction and gravity
Jiajun Chen, Xiaolong Du, Erik Lentz +1
In this paper, we study the Bose-Einstein condensation of a scalar field with an attractive self-interaction, with or without gravitational interactions. We confirm through full dy…
New insights into the formation and growth of boson stars in dark matter halos
Jiajun Chen, Xiaolong Du, Erik W. Lentz +2
This work studies the formation and growth of boson stars and their surrounding miniclusters by gravitational condensation using non-linear dynamical numerical methods. Fully dynam…