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arXiv · 2305.04496

Boson star with parity-odd symmetry in wormhole spacetime

Yuan Yue·Peng-Bo Ding·Yong-Qiang Wang
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Abstract

In this paper, we revisit the model of bosonic matter in the form of a free complex scalar field with a nontrivial wormhole spacetime topology supported by a free phantom field. We obtain a new type of boson star with wormhole solutions, in which the complex scalar field possess full parity-odd symmetry with respect to the two asymptotically flat spacetime regions. When the size of the throat is small, The behavior of boson stars with wormhole approaches that of boson stars. When the size of the throat is intermediate, the typical spiraling dependence of the mass and the particle number on the frequency of the boson stars is replaced by a loop structure. However, as the size becomes relatively large, the loop structure will also disappear. In particular, The complex scalar field could form two boson stars with opposite phase differences with respect to the two spacetime regions in the limit of vanishing throat size. We analyze the properties of this new type of boson stars with wormhole and further show that the wormhole spacetime geometry.

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Yuan Yue, Peng-Bo Ding, Yong-Qiang Wang. 2023-05-08. Boson star with parity-odd symmetry in wormhole spacetime. https://arxiv.org/abs/2305.04496

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