Klein-Gordon particles in a nonuniform external magnetic field in Bonnor-Melvin rainbow gravity background
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2025
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| author | Mustafa, Omar Guvendi, Abdullah |
| author_facet | Mustafa, Omar Guvendi, Abdullah |
| contents | We investigate the effect of rainbow gravity on Klein-Gordon (KG) bosons in a quantized nonuniform magnetic field in the background of Bonnor-Melvin (BM) spacetime with a cosmological constant. In the process, we show that the BM spacetime introduces domain walls (i.e., infinitely impenetrable hard walls) at \(r = 0\) and \(r = π/\sqrt{2Λ}\), as a consequence of the effective gravitational potential field generated by such a magnetized BM spacetime. As a result, the motion of KG particles/antiparticles is restricted indefinitely within the range \(r \in [0, π/\sqrt{2Λ}]\), and the particles and antiparticles cannot be found elsewhere. Next, we provide a conditionally exact solution in the form of the general Heun function \(H_G(a, q, α, β, γ, δ, z)\). Within the BM domain walls and under the condition of exact solvability, we study the effects of rainbow gravity on KG bosonic fields in a quantized nonuniform external magnetic field in the BM spacetime background. We use three pairs of rainbow functions: \( f(u) = (1 - \tildeβ |E|)^{-1}, \, h(u) = 1 \); and \( f(u) = 1, \, h(u) = \sqrt{1 - \tildeβ |E|^\upsilon} \), with \(\upsilon = 1,2\), where \(u = |E| / E_p\), \(\tildeβ = β/ E_p\), and \(β\) is the rainbow parameter. We find that such pairs of rainbow functions, \((f(u), h(u))\), fully comply with the theory of rainbow gravity, ensuring that \(E_p\) is the maximum possible energy for particles and antiparticles alike. Moreover, we show that the corresponding bosonic states form magnetized, rotating vortices, as intriguing consequences of such a magnetized BM spacetime background. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2504_05717 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Klein-Gordon particles in a nonuniform external magnetic field in Bonnor-Melvin rainbow gravity background Mustafa, Omar Guvendi, Abdullah General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena We investigate the effect of rainbow gravity on Klein-Gordon (KG) bosons in a quantized nonuniform magnetic field in the background of Bonnor-Melvin (BM) spacetime with a cosmological constant. In the process, we show that the BM spacetime introduces domain walls (i.e., infinitely impenetrable hard walls) at \(r = 0\) and \(r = π/\sqrt{2Λ}\), as a consequence of the effective gravitational potential field generated by such a magnetized BM spacetime. As a result, the motion of KG particles/antiparticles is restricted indefinitely within the range \(r \in [0, π/\sqrt{2Λ}]\), and the particles and antiparticles cannot be found elsewhere. Next, we provide a conditionally exact solution in the form of the general Heun function \(H_G(a, q, α, β, γ, δ, z)\). Within the BM domain walls and under the condition of exact solvability, we study the effects of rainbow gravity on KG bosonic fields in a quantized nonuniform external magnetic field in the BM spacetime background. We use three pairs of rainbow functions: \( f(u) = (1 - \tildeβ |E|)^{-1}, \, h(u) = 1 \); and \( f(u) = 1, \, h(u) = \sqrt{1 - \tildeβ |E|^\upsilon} \), with \(\upsilon = 1,2\), where \(u = |E| / E_p\), \(\tildeβ = β/ E_p\), and \(β\) is the rainbow parameter. We find that such pairs of rainbow functions, \((f(u), h(u))\), fully comply with the theory of rainbow gravity, ensuring that \(E_p\) is the maximum possible energy for particles and antiparticles alike. Moreover, we show that the corresponding bosonic states form magnetized, rotating vortices, as intriguing consequences of such a magnetized BM spacetime background. |
| title | Klein-Gordon particles in a nonuniform external magnetic field in Bonnor-Melvin rainbow gravity background |
| topic | General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2504.05717 |