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pro vyhledávání: '"M.T. Thomaz"'
Autor:
M.T. Thomaz
Publikováno v:
Revista Brasileira de Ensino de Física, Vol 46 (2024)
We show that, when associated with conservative forces that depend on two points in space: the center of the force and the position of the particle under its action, the value of potential energy is the same, up to an additive constant, in all frames
Externí odkaz:
https://doaj.org/article/2de31e8a12fb4e5a87da06f66f7f5697
Autor:
M.T. Thomaz
Publikováno v:
Revista Brasileira de Ensino de Física, Vol 42 (2020)
Resumo Quando estudamos o movimento de rotação de corpos rígidos precisamos de uma cinemática de rotação que descreva este tipo de deslocamento que os corpos podem ter. É dito nos livros textos que: “… não podemos identificar rotações f
Externí odkaz:
https://doaj.org/article/f733067ce050444a817c02f319abb9ca
Publikováno v:
Condensed Matter Physics, Vol 18, Iss 3, p 33003 (2015)
We obtain that when the spinless model is off the half-filling regime (μ ≠ V), the Helmholtz free energy (HFE) can be written as two β-expansions: one expansion comes from the half-filling configuration and another one that depends on the paramet
Externí odkaz:
https://doaj.org/article/f12e9478a79842918c13944abaaa3a9c
Publikováno v:
Condensed Matter Physics, Vol 17, Iss 2, p 23002 (2014)
We revisit the particle-hole symmetry of the one-dimensional (D=1) fermionic spinless Hubbard model, associating that symmetry to the invariance of the Helmholtz free energy of the one-dimensional spin-1/2 XXZ Heisenberg model, under reversal of the
Externí odkaz:
https://doaj.org/article/07c44da5949a47eda58337759a24425d
Autor:
M.T. Thomaz, O. Rojas
Publikováno v:
Condensed Matter Physics, Vol 15, Iss 1, p 13706 (2012)
We derive the high-temperature expansion of the Helmholtz free energy up to order β17 of the one-dimensional spin-S Ising model, with single-ion anisotropy term, in the presence of a longitudinal magnetic field. We show that the values of some therm
Externí odkaz:
https://doaj.org/article/4577e9887f0b4edab07bf42b4867320e
Autor:
M.T. Thomaz
Publikováno v:
Revista Brasileira de Ensino de Física
We approach the question of the movement of a particle with variable mass observed from an inertial frame. We consider two different situations: (i) a particle whose intrinsic mass value varies over time; (ii) the center of mass (CM) of a set of part
Externí odkaz:
https://doaj.org/article/80b1a354eb4a4472acf2caf0f9197456
Autor:
M.T. Thomaz, E.V. Corrêa Silva
Publikováno v:
Revista Brasileira de Ensino de Física, Vol 41, Iss 3
Abstract We study the dynamics of the center of mass (CM) of a set of particles when the number of particles in the system varies during a short interval of time, or when the value of the mass of one of the particles depends on time. We show that in
Externí odkaz:
https://doaj.org/article/0241c25251094a2ca13272a3ac5f5d85
Akademický článek
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Akademický článek
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Autor:
I. C. Charret, C. E. I. Carneiro, M.T. Thomaz, O. Rojas Santos, S. M. de Souza, E. V. Corrêa Silva
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 264:204-221
We explore the properties of the non-commutative Grassmann algebra to obtain the high-temperature expansion of the grand canonical partition function for self-interacting fermionic systems. As an application, we consider the anharmonic fermionic osci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::118961c7a965553bef91ae781f7825d3
https://doi.org/10.1016/s0378-4371(98)00398-7
https://doi.org/10.1016/s0378-4371(98)00398-7