Zobrazeno 1 - 10 of 3 240 pro vyhledávání: '"Santos, L. C"'
1
Report
Kiselev black holes in $f(R,T)$ gravity
Autor: Santos, L. C. N., da Silva, F. M., Mota, C. E., Lobo, I. P., Bezerra, V. B.
We obtain new exact solutions for the gravitational field equations in the context of $f(R,T)$ gravity, thereby obtaining different classes of black holes surrounded by fluids, taking into account some specific values of the parameter of the equation
Externí odkaz: http://arxiv.org/abs/2301.02534
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2
Report
Non-inertial effects on a non-relativistic quantum harmonic oscillator in the presence of a screw dislocation
Autor: Santos, L. C. N., da Silva, F. M., Mota, C. E., Bezerra, V. B.
We investigate non-inertial effects induced by a rotating frame on a non-relativistic quantum harmonic oscillator as well as of the topology associated to a screw dislocation, which corresponds to a distortion of a vertical line into a vertical spira
Externí odkaz: http://arxiv.org/abs/2210.02559
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3
Report
Rapidly rotating neutron stars in $f(R,T)$ gravity
Autor: da Silva, F. M., Santos, L. C. N., Mota, C. E., da Costa, T. O. F., Fabris, J. C.
In this work, we study the influence of $f(R,T)$ gravity on rapidly rotating neutron stars. First we discuss the main aspects of this modified theory of gravity where the gravitational Lagrangian is an arbitrary function of the Ricci scalar $R$ and o
Externí odkaz: http://arxiv.org/abs/2206.08469
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5
Report
Rapidly rotating compact stars in Rastall's gravity
Autor: da Silva, F. M., Santos, L. C. N., Barros Jr, C. C.
In this work we study rapidly rotating stars by considering the Rastall theory of gravity. We obtain and solve the equations by numerical methods for two usual parametrization of polytropic stars. Then the mass-radius relations, moments of inertia an
Externí odkaz: http://arxiv.org/abs/2010.00086
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6
Akademický článek
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7
Akademický článek
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8
Report
Quantum dynamics of scalar particles in the space-time of a cosmic string in the context of gravity's rainbow
Autor: Santos, L. C. N., Mota, C. E., Barros Jr., C. C., Castro, L. B., Bezerra, V. B.
Publikováno v: Ann. Phys. (N.Y.) 421 (2020) 168276
We analyze the dynamics of scalar particles in gravity's rainbow considering the space-time of a cosmic string in this modified gravity. Thus, we solve the Klein-Gordon equation for two types of potential in which two possible rainbow functions are s
Externí odkaz: http://arxiv.org/abs/1912.10923
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9
Report
Electrostatic self-interaction of charged particles in the space-time of a cosmic string in the context of gravity's rainbow
Autor: Santos, L. C. N., Bezerra, V. B.
We analyze the electrostatic self-energy of a point like electrically charged particle induced by a cosmic string in the context of gravity's rainbow, as well the electrostatic self-force on this particle. The possibility of the solution associated w
Externí odkaz: http://arxiv.org/abs/1911.01996
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