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20 papers · 1 filter
The tunneling decay rate in QFT beyond the thin wall approximation
G. Flores-Hidalgo
The tunneling decay rate per unit volume in Quantum Field Theory (QFT), at order , is given by , where is the Euclidean action evaluated at the so-called…
Cabin Layout, Seat Density, and Passenger Segmentation in Air Transport: Implications for Prices, Ancillary Revenues, and Efficiency
Alessandro V. M. Oliveira, Moises D. Vassallo
This study investigates how the layout and density of seats in aircraft cabins influence the pricing of airline tickets on domestic flights. The analysis is based on microdata from…
Thermodynamic stability in an Einstein universe
E. S. Moreira, J. P. A. Paula
We calculate the Feynman propagator at finite temperature in an Einstein universe for a neutral massive scalar field arbitrarily coupled to the Ricci curvature. Then, the propagato…
Layout de Cabine, Densidade de Assentos e Segmentacao de Passageiros no Transporte Aereo: Implicacoes para Precos, Receitas Auxiliares e Eficiencia
Alessandro V. M. Oliveira, Moises D. Vassallo
This study investigates how the layout and seat density in aircraft cabins influence the pricing of airline tickets on domestic flights. The analysis is based on microdata from boa…
Cosmological perturbations in Energy-Momentum Squared Gravity
Peter K. S. Dunsby, Maria-Alexia Caldis, Eduardo Bittencourt
We present a fully covariant and gauge-invariant analysis of linear cosmological perturbations in Energy-Momentum Squared Gravity. Working within the 1+3 formalism, we derive the e…
Axial Gravitational Normal Modes of Uniform Density Star in Anti-de Sitter Spacetime
Kai Lin, Alan B. Pavan, Amilcar Rabelo de Queiroz +1
The article studies the dynamical behavior of axial gravitational perturbations of homogeneous stars in Anti-de Sitter spacetime. Because the radial coordinate transforms into…