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Frontiers of Physics

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Front. Phys.    2024, Vol. 19 Issue (3) : 34201    https://doi.org/10.1007/s11467-023-1361-8
RESEARCH ARTICLE
Localization of q-form fields on a de Sitter brane in chameleon gravity
Yi Zhong1,2(), Tao-Tao Sui3()
1. School of Physics and Electronics Science, Hunan University, Changsha 410082, China
2. Lanzhou Center for Theoretical Physics, Key Laboratory of Theoretical Physics of Gansu Province, and Key Laboratory of Quantum Theory and Applications of MoE, Lanzhou University, Lanzhou 730000, China
3. College of Physics, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
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Abstract

Recently, it was found that the vector field can be naturally localized on the thick brane in chameleon gravity. In this work, we extend this study to encompass de Sitter brane scenario. We focus on the localization of q-form fields. The scalar and vector fields can be localized on the de Sitter brane, while the KR field cannot be localized. The condition for localization of the scalar and vector fields is obtained. Furthermore, we investigate the localization characteristics in two examples with given conformal factor b(ϕ). In the first case, the effective potentials and KK modes of the matter fields are obtained asymmetric even though the de Sitter brane has Z2 symmetry. In the second case, volcano-like effective potentials are generated in the de Sitter brane model.
Keywords brane      q-form field      chameleon gravity     
Corresponding Author(s): Yi Zhong,Tao-Tao Sui   
About author:

Peng Lei and Charity Ngina Mwangi contributed equally to this work.
Just Accepted Date: 25 October 2023   Issue Date: 17 November 2023
 Cite this article:   
Yi Zhong,Tao-Tao Sui. Localization of q-form fields on a de Sitter brane in chameleon gravity[J]. Front. Phys. , 2024, 19(3): 34201.
 URL:  
https://academic.hep.com.cn/fop/EN/10.1007/s11467-023-1361-8
https://academic.hep.com.cn/fop/EN/Y2024/V19/I3/34201
Fig.1  The shapes of the warp factor a(z) (a) and the scalar field ϕ(z) (b) in the de Sitter brane model.
Fig.2  The effective potential of the scalar (a) and vector (b) fields. The parameter p is sect as p=0.6.
Fig.3  The zero modes of the scalar (a) and vector (b) fields. The parameter p is sect as p=0.6.
Fig.4  The zero modes and effective potentials of the scalar (a) and vector (b) fields.
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