Zobrazeno 1 - 10
of 180
pro vyhledávání: '"Carvalho, P. R. S."'
Autor:
Carvalho, P. R. S.
Publikováno v:
Phys. Lett. B 846, 138187 (2023)
In this Letter we introduce some field-theoretic approach for computing the critical properties of $\gamma_{KLS}$-generalized systems undergoing continuous phase transitions, namely $\gamma_{KLS}$-statistical field theory. From this new approach emer
Externí odkaz:
http://arxiv.org/abs/2404.01280
Publikováno v:
Phys. Lett. B 843, 138005 (2023)
In this Letter we introduce some field-theoretic approach for computing the critical properties of systems undergoing continuous phase transitions governed by the $\kappa$-generalized statistics, namely $\kappa$-generalized statistical field theory.
Externí odkaz:
http://arxiv.org/abs/2307.05467
Publikováno v:
Int. J. Geom. Methods Mod. Phys. 19, 2250169 (2022)
We compute analytically the radiative quantum corrections, up to next-to-leading loop order, to the universal critical exponents for both massless and massive O($N$) $\lambda\phi^{4}$ scalar squeezed field theories for probing the universality hypoth
Externí odkaz:
http://arxiv.org/abs/2211.08846
Autor:
Carvalho, P. R. S.
Publikováno v:
Phys. Lett. B 838, 137683 (2023)
In this Letter we validate experimentally the nonextensive statistical field theory, a new general field-theoretic approach introduced recently in the literature. With such an approach, we are capable of computing the critical properties of nonextens
Externí odkaz:
http://arxiv.org/abs/2211.07577
Autor:
Carvalho, P. R. S.
Publikováno v:
Phys. Lett. B 833, 137284 (2022)
We compute the critical exponents for nonextensive $\lambda\phi^{3}$ scalar field theory for all loop orders and $|q - 1| < 1$. We apply the results for both nonextensive percolation and Lee-Yang edge singularity problems. The corresponding systems a
Externí odkaz:
http://arxiv.org/abs/2203.15033
Autor:
Carvalho, P. R. S.
Publikováno v:
Phys. Lett. B 830, 137147 (2022)
We introduce a field-theoretic approach for describing the critical behavior of nonextensive systems, systems displaying global correlations among their degrees of freedom, encoded by the nonextensive parameter $q$. As some applications, we report, t
Externí odkaz:
http://arxiv.org/abs/2112.00678
In this work, we investigate how the anisotropy affects the cosmological parameters estimation. Here the anisotropy is incorporated as a small gravitational disturbance. We calculate the Fisher information for both cosmological parameters $\epsilon$
Externí odkaz:
http://arxiv.org/abs/2109.08252
Autor:
Costa, H. A. S., Carvalho, P. R. S.
Publikováno v:
Class. Quantum Grav. 36, 075008 (2019)
We probe the effect of diffeomorphism symmetry on the critical exponents values for massive O($N$) $\lambda\phi^{4}$ scalar field theories in curved spacetime. We apply field-theoretic renormalization group tools, where we use only momentum coordinat
Externí odkaz:
http://arxiv.org/abs/2103.01899
Autor:
Costa, H. A. S., Carvalho, P. R. S.
Publikováno v:
Europhys. Lett. 128, 40009 (2019)
In this Letter we compute analytically the effect of conformal symmetry on the radiative corrections to the amplitude ratios for O($N$) $\lambda\phi^{4}$ massless scalar field theories in curved spacetime for probing the two-scale-factor universality
Externí odkaz:
http://arxiv.org/abs/2010.11104
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