Fermion soliton stars

L Del Grosso, G Franciolini, P Pani, A Urbano - Physical Review D, 2023 - APS
A real scalar field coupled to a fermion via a Yukawa term can evade no-go theorems
preventing solitonic solutions. For the first time, we study this model within general relativity …

Excited Dirac stars with higher azimuthal harmonic index

LX Huang, SX Sun, R Zhang, C Liang… - Journal of Cosmology …, 2024 - iopscience.iop.org
In this paper, we investigate the properties of the first excited state Dirac stars (DSs) with
higher azimuthal harmonic index (specifically, the azimuthal harmonic indexes m D= 3/2 …

Dirac-boson stars

C Liang, JR Ren, SX Sun, YQ Wang - Journal of High Energy Physics, 2023 - Springer
A bstract In this paper, we construct Dirac-boson stars (DBSs) model composed of a scalar
field and two Dirac fields. The scalar field and both Dirac fields are in the ground state. We …

Einstein-Dirac system in semiclassical gravity

B Kain - Physical Review D, 2023 - APS
We study the Dirac equation minimally coupled to general relativity using quantum field
theory and the semiclassical gravity approximation. Previous studies of the Einstein-Dirac …

-Dirac stars

SX Sun, SY Cui, LX Huang, TF Fang… - The European Physical …, 2024 - Springer
In this paper, we construct a Dirac star model composed of| κ| pairs of spinor fields. The
azimuthal harmonic indices m of these spinor fields are half-integers, and they satisfy-(| κ|-1 …

Dirac stars in wormhole spacetime

CH Hao, SX Sun, LX Huang, R Zhang… - Journal of Cosmology …, 2024 - iopscience.iop.org
In this paper, we study the spherically symmetric Dirac star model in the presence of a
phantom field, obtaining a traversable wormhole solution in non-trivial topological …

Frozen Bardeen-Dirac stars and light ball

LX Huang, SX Sun, YQ Wang - arXiv preprint arXiv:2312.07400, 2023 - arxiv.org
In this paper, we study solutions of a static spherically symmetric system, which is composed
of the coupling with the Bardeen action and two Dirac fields. For the case where only the …

Emergency of black holes from wormholes

CH Hao, SX Sun, LX Huang, R Zhang, X Su… - arXiv preprint arXiv …, 2023 - arxiv.org
In this paper, we study the spherically symmetric Dirac star model in the presence of a
phantom field, obtaining a traversable wormhole solution in non-trivial topological …

Dirac stars in Anti-de Sitter spacetime

XY Zhang, L Zhao, YQ Wang - The European Physical Journal C, 2024 - Springer
In this paper, we construct the Dirac stars model composed of two Dirac fields and Einstein
gravity in four-dimensional Anti-de Sitter spacetime. We consider the Dirac stars with free …

Gravitationally localized states of two neutral fermions interacting with a Higgs field

PED Leith, AD Leggat, CA Hooley, K Horne… - Physical Review D, 2023 - APS
We present localized “particlelike” states composed of a pair of neutral fermions interacting
with a scalar Higgs field and the metric of spacetime, extending the Einstein-Dirac formalism …