Zobrazeno 1 - 10
of 87
pro vyhledávání: '"Zarro, C."'
Autor:
Malta, P. C., Zarro, C. A. D.
Publikováno v:
Phys. Rev. D 110, 095017 (2024)
We study the effects of a finite mass for the photon on its propagation in a weak gravitational field. In particular, we analyse the gravitational time delay, also known as the Shapiro effect. We work in isotropic coordinates in the weak-field limit
Externí odkaz:
http://arxiv.org/abs/2403.12286
Publikováno v:
Phys. Rev. A 103, 042225 (2021)
In this work we discuss the process of measurements by a detector in an uniformly accelerated rectilinear motion, interacting linearly with a massive scalar field. The detector model for field quanta is a point-like system with a ground state and a c
Externí odkaz:
http://arxiv.org/abs/2009.03970
Land use and land cover (LULC) classification using remote sensing imagery plays a vital role in many environment modeling and land use inventories. In this study, a hybrid feature optimization algorithm along with a deep learning classifier is propo
Externí odkaz:
http://arxiv.org/abs/2008.01635
In this work we demonstrate new BCH-like relations involving the generators of the su(1, 1), su(2) and so(2, 1) Lie algebras. We use our results to obtain in a straightforward way the composition of an arbitrary number of elements of the correspondin
Externí odkaz:
http://arxiv.org/abs/2005.09500
We consider a harmonic oscillator (HO) with a time dependent frequency which undergoes two successive abrupt changes. By assumption, the HO starts in its fundamental state with frequency \omega_{0}, then, at t = 0, its frequency suddenly increases to
Externí odkaz:
http://arxiv.org/abs/2004.10852
We discuss a $\lambda\varphi^{4}+\rho\varphi^{6}$ scalar field model defined in the Euclidean section of the Schwarzschild solution of the Einstein equations in the presence of multiplicative noise. The multiplicative random noise is a model for fluc
Externí odkaz:
http://arxiv.org/abs/1910.06952
Using operator ordering techniques based on BCH-like relations of the su(1,1) Lie algebra and a time-splitting approach,we present an alternative method of solving the dynamics of a time-dependent quantum harmonic oscillator for any initial state. We
Externí odkaz:
http://arxiv.org/abs/1908.11006
We discuss the effects of quenched disorder in a dilute Bose-Einstein condensate confined in a hard walls trap. Starting from the disordered Gross-Pitaevskii functional, we obtain a representation for the quenched free energy as a series of integer m
Externí odkaz:
http://arxiv.org/abs/1906.03108
Publikováno v:
Phys. Rev. D 97, 065017 (2018)
We discuss a disordered $\lambda\varphi^{4}+\rho\varphi^{6}$ Landau-Ginzburg model defined in a d-dimensional space. First we adopt the standard procedure of averaging the disorder dependent free energy of the model. The dominant contribution to this
Externí odkaz:
http://arxiv.org/abs/1712.07990
In this paper we investigate bubble nucleation in a disordered Landau-Ginzburg model. First we adopt the standard procedure to average over the disordered free energy. This quantity is represented as a series of the replica partition functions of the
Externí odkaz:
http://arxiv.org/abs/1711.03408