Zobrazeno 1 - 10
of 655
pro vyhledávání: '"Ximenes, Ricardo"'
Publikováno v:
Phys. Rev. A 109, 012221 (2024)
An alternative quantization rule, in which time becomes a self-adjoint operator and position is a parameter, was proposed by Dias and Parisio [Phys. Rev. A {\bf 95}, 032133 (2017)]. In this approach, the authors derive a space-time-symmetric (STS) ex
Externí odkaz:
http://arxiv.org/abs/2306.12000
The paradigm of portal matter represents a well-motivated extension to models with kinetic mixing/vector portal dark matter. In previous work, we constructed a simple leptonic portal matter model in which the portal matter fields could mediate a new
Externí odkaz:
http://arxiv.org/abs/2303.12983
We present a minimal construction using leptonic portal matter that addresses the muon $g-2$ anomaly. While the chiral enhancement mechanism is reminiscent of that of fermiophobic $Z'$ gauge models, the parameter space motivated by the kinetic mixing
Externí odkaz:
http://arxiv.org/abs/2211.09918
The canonical operator $\hat{a}^{\dagger}$ ($\hat{a}$) represents the ideal process of adding (subtracting) an {\it exact} amount of energy $E$ to (from) a physical system in both elementary quantum mechanics and quantum field theory. This is a ``sha
Externí odkaz:
http://arxiv.org/abs/2009.06392
Autor:
Carvalho, Maria Durce C.G., Ximenes, Ricardo A.A., Andrade-Valença, Luciana P.A., Montarroyos, Ulisses R., Diniz, George Tadeu Nunes, Rodrigues, Laura C., Brickley, Elizabeth B., Eickmann, Sophie H., de Araujo, Thalia V.B., Martelli, Celina M.T., da Silva, Paula F.S., Miranda-Filho, Demócrito de B.
Publikováno v:
In Seizure: European Journal of Epilepsy August 2023 110:28-41
Autor:
Ximenes, Ricardo, Dias, Eduardo O.
It is well known that nonrelativistic quantum mechanics presents a clear asymmetry between space and time. Much of this asymmetry is attributed to the lack of Lorentz invariance of the theory. Nonetheless, a recent work [Phys. Rev. A \textbf{95}, 032
Externí odkaz:
http://arxiv.org/abs/1712.03446
Publikováno v:
Phys. Rev. A 98, 032105 (2018)
The question of how long a particle takes to pass through a potential barrier is still a controversial topic in quantum mechanics. Arguably, the main theoretical problem in obtaining estimates for measurable times is the fact that previously defined
Externí odkaz:
http://arxiv.org/abs/1712.00397
Akademický článek
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Akademický článek
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Autor:
Ximenes, Ricardo, Parisio, Fernando
Publikováno v:
Eur. Phys. J. Plus (2016) 131: 404
It is known that Schr\"odinger equation fails in describing the dynamics of highly energetic particles. We propose to quantify this lack of Lorentz covariance by evaluating the probability for a particle to be measured outside the set of light cones
Externí odkaz:
http://arxiv.org/abs/1605.04755