Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Carvalho, Paulo R."'
We adapt a typical Ramsey interferometer by inserting a linear accelerator capable of accelerating an atom inside a single-mode cavity. We demonstrate that this simple scheme allows us to estimate the effects of acceleration radiation via interferome
Externí odkaz:
http://arxiv.org/abs/2008.03112
We investigate a quantum teleportation process between two comoving observers Alice and Bob in an anisotropic expanding spacetime. In this model, we calculate the fidelity of teleportation and we noted an oscillation of its spectrum as a function of
Externí odkaz:
http://arxiv.org/abs/2008.01788
Publikováno v:
In LITHOS August 2023 450-451
Akademický článek
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Publikováno v:
J. Math. Phys. 54, 093301 (2013); J. Math. Phys. 57, 119901 (2016)
We introduce a simpler although unconventional minimal subtraction renormalization procedure in the case of a massive scalar $\lambda \phi^{4}$ theory in Euclidean space using dimensional regularization. We show that this method is very similar to it
Externí odkaz:
http://arxiv.org/abs/1701.01400
Autor:
Carvalho, Paulo R. S.
Publikováno v:
Int. J. Mod. Phys. B 30, 1550259 (2016)
We compute analytically the all-loop level critical exponents for a massless thermal Lorentz-violating O($N$) self-interacting $\lambda\phi^{4}$ scalar field theory. For that, we evaluate, firstly explicitly up to next-to-leading order and later in a
Externí odkaz:
http://arxiv.org/abs/1503.00896
Publikováno v:
Int. J. Geom. Methods Mod. Phys. 13, 1650049 (2016)
We compute, both explicitly up to next-to-leading order and in a proof by induction for all loop levels, the critical exponents for thermal Lorentz-violating O($N$) self-interacting scalar field theory. They are evaluated in a massless theory renorma
Externí odkaz:
http://arxiv.org/abs/1502.01697
Publikováno v:
Europhys. Lett. 108, 21001 (2014)
We calculate the critical exponents for Lorentz-violating O($N$) $\lambda\phi^{4}$ scalar field theories by using two independent methods. In the first situation we renormalize a massless theory by utilizing normalization conditions. An identical tas
Externí odkaz:
http://arxiv.org/abs/1502.01289
Autor:
Carvalho, Paulo R. S.
Publikováno v:
Phys. Lett. B 730, 320 (2014)
Applying the counterterm method in minimal subtraction scheme we calculate the three-loop quantum correction to field anomalous dimension in a Lorentz-violating O($N$) self-interacting scalar field theory. We compute the Feynman diagrams using dimens
Externí odkaz:
http://arxiv.org/abs/1403.5336
Autor:
Carvalho, Paulo R. S.
Publikováno v:
Phys. Lett. B 726, 850 (2013)
In this work we evaluate the $\gamma_{m}$ function corresponding to mass renormalization for O($N$) scalar field theory with Lorentz violation. We calculate this function up to two-loop order for a theory renormalized utilizing the counterterm method
Externí odkaz:
http://arxiv.org/abs/1403.1826