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| Format: | Preprint |
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2025
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| Online Access: | https://arxiv.org/abs/2503.00019 |
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| _version_ | 1866916636185853952 |
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| author | Singh, Swapnil Kumar |
| author_facet | Singh, Swapnil Kumar |
| contents | We present a comprehensive study of gravitational exciton dynamics arising from higher-dimensional theories, with a focus on establishing a robust effective framework that incorporates self-interactions, higher-derivative corrections, and quantum effects. Starting from a \( D \)-dimensional Einstein--Hilbert action on a warped product manifold, we perform a systematic dimensional reduction to obtain a four-dimensional effective action in the Einstein frame. Our formulation extends the classical potential by including self-interacting moduli fields and RG-improved parameters via the Coleman--Weinberg mechanism, thereby accounting for both matter and graviton loop corrections. The resulting renormalization group flow modifies the effective mass and coupling constants, which in turn plays a critical role in moduli stabilization and the low-energy phenomenology. Taking the non-relativistic limit, we derive a Gross-Pitaevskii equation that governs the dynamics of the gravitational exciton condensate, and couple it self-consistently with Poisson's equation to capture gravitational backreaction. Through both variational and numerical analyses, we obtain stationary solutions in spherically symmetric, rotating, and anisotropic configurations, and perform a linear stability analysis using the Bogoliubov-de Gennes formalism. Our results reveal a Bogoliubov dispersion relation that exhibits a phonon-like linear regime at low momenta, transitioning to quadratic free-particle behavior at high momenta. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_00019 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Self-Interacting Gravitational Exciton Condensates from Extra-Dimensional Stabilization Singh, Swapnil Kumar General Relativity and Quantum Cosmology High Energy Physics - Theory We present a comprehensive study of gravitational exciton dynamics arising from higher-dimensional theories, with a focus on establishing a robust effective framework that incorporates self-interactions, higher-derivative corrections, and quantum effects. Starting from a \( D \)-dimensional Einstein--Hilbert action on a warped product manifold, we perform a systematic dimensional reduction to obtain a four-dimensional effective action in the Einstein frame. Our formulation extends the classical potential by including self-interacting moduli fields and RG-improved parameters via the Coleman--Weinberg mechanism, thereby accounting for both matter and graviton loop corrections. The resulting renormalization group flow modifies the effective mass and coupling constants, which in turn plays a critical role in moduli stabilization and the low-energy phenomenology. Taking the non-relativistic limit, we derive a Gross-Pitaevskii equation that governs the dynamics of the gravitational exciton condensate, and couple it self-consistently with Poisson's equation to capture gravitational backreaction. Through both variational and numerical analyses, we obtain stationary solutions in spherically symmetric, rotating, and anisotropic configurations, and perform a linear stability analysis using the Bogoliubov-de Gennes formalism. Our results reveal a Bogoliubov dispersion relation that exhibits a phonon-like linear regime at low momenta, transitioning to quadratic free-particle behavior at high momenta. |
| title | Self-Interacting Gravitational Exciton Condensates from Extra-Dimensional Stabilization |
| topic | General Relativity and Quantum Cosmology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2503.00019 |