Search Results - "Carvalho, Paulo R. S."

Robustness of the O(N) universality class by Vieira, William C., Carvalho, Paulo R. S.

“…We calculate the critical exponents for Lorentz-violating O(N) scalar field theories by using two independent methods. In the first situation we renormalize a…”
Get full text

Three-loop field renormalization for scalar field theory with Lorentz violation by Carvalho, Paulo R.S.

“…Applying the counterterm method in minimal subtraction scheme we calculate the three-loop quantum correction to field anomalous dimension in a…”
Get full text

Callan–Symanzik–Lifshitz approach to generic competing systems by Carvalho, Paulo R.S., Leite, Marcelo M.

“…We present the massive method to approaching the critical behaviors of systems with arbitrary competing interactions. Every distinct competition subspace in…”
Get full text

Callan–Symanzik method for m-axial Lifshitz points by Carvalho, Paulo R.S., Leite, Marcelo M.

“…We introduce the Callan–Symanzik method in the description of anisotropic as well as isotropic Lifshitz critical behaviors. Renormalized perturbation theories…”
Get full text

Alice and Bob in an anisotropic expanding spacetime by Costa, Helder A. S, Carvalho, Paulo R. S

“…We investigate a quantum teleportation process between two comoving observers Alice and Bob in an anisotropic expanding spacetime. In this model, we calculate…”
Get full text

Ramsey interferometry as a witness of acceleration radiation by Costa, Helder A. S, da Paz, Irismar G, Carvalho, Paulo R. S, Sampaio, Marcos

“…We adapt a typical Ramsey interferometer by inserting a linear accelerator capable of accelerating an atom inside a single-mode cavity. We demonstrate that…”
Get full text

Mass renormalization in Lorentz-violating scalar field theory by Carvalho, Paulo R.S.

“…In this Letter we evaluate the γm function corresponding to mass renormalization for O(N) scalar field theory with Lorentz violation. We calculate this…”
Get full text

Alice and Bob in an anisotropic expanding spacetime by Costa, Helder A.S., Carvalho, Paulo R.S.

“…We investigate a quantum teleportation process between two comoving observers Alice and Bob in an anisotropic expanding spacetime. In this model, we calculate…”
Get full text

Unconventional minimal subtraction and Bogoliubov-Parasyuk-Hepp-Zimmermann: massive scalar theory and critical exponents by Carvalho, Paulo R. S, Leite, Marcelo M

“…J. Math. Phys. 54, 093301 (2013); J. Math. Phys. 57, 119901 (2016) We introduce a simpler although unconventional minimal subtraction renormalization procedure…”
Get full text

All-loop order critical exponents for massless scalar field theory with Lorentz violation in the BPHZ method by Carvalho, Paulo R. S

“…Int. J. Mod. Phys. B 30, 1550259 (2016) We compute analytically the all-loop level critical exponents for a massless thermal Lorentz-violating O($N$)…”
Get full text

Three-loop field renormalization for scalar field theory with Lorentz violation by Carvalho, Paulo R. S

“…Phys. Lett. B 730, 320 (2014) Applying the counterterm method in minimal subtraction scheme we calculate the three-loop quantum correction to field anomalous…”
Get full text

Mass Renormalization in Lorentz-violating Scalar Field Theory by Carvalho, Paulo R. S

“…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…”
Get full text

Renormalization group approach for Lorentz-violating scalar field theory at all loop orders by Vieira, William C, Carvalho, Paulo R. S

“…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,…”
Get full text

Robustness of the O($N$) universality class by Vieira, William C, Carvalho, Paulo R. S

“…Europhys. Lett. 108, 21001 (2014) We calculate the critical exponents for Lorentz-violating O($N$) $\lambda\phi^{4}$ scalar field theories by using two…”
Get full text

Massive minimal subtraction scheme and “partial-p” in anisotropic Lifshitz space(time)s by Souza, Emanuel V., Carvalho, Paulo R.S., Leite, Marcelo M.

“…We introduce the “partial-p” operation in a massive Euclidean λϕ4 scalar field theory describing anisotropic Lifshitz critical behavior. We then develop a…”
Get full text

Callan-Symanzik-Lifshitz approach to generic competing systems by Carvalho, Paulo R. S, Leite, Marcelo M

“…Annals Phys.325:151-184,2010 We present the Callan-Symanzik-Lifshitz method to approaching the critical behaviors of systems with arbitrary competing…”
Get full text

Erratum to “Callan-Symanzik method for m-axial Lifshitz points” [Ann. Phys. 324 (2009) 178] by Carvalho, Paulo R.S., Leite, Marcelo M.

Get full text

Massive minimal subtraction scheme and "partial-$p$" in anisotropic Lifshitz space(time)s by Souza, Emanuel V, Carvalho, Paulo R. S, Leite, Marcelo M

“…We introduce the "partial-$p$" operation in a massive Euclidean $\lambda\phi^{4}$ scalar field theory describing anisotropic Lifshitz critical behavior. We…”
Get full text

Callan-Symanzik method for $m$-axial Lifshitz points by Carvalho, Paulo R. S, Leite, Marcelo M

“…Annals Phys.324:178-204,2009; Erratum-ibid.324:2452,2009 We introduce the Callan-Symanzik method in the description of anisotropic as well as isotropic…”
Get full text