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Translation and exploratory application of a food a nd nutrition knowledge ques...
Silva, António; Lima, R.C.; Frias, A.; Moura, A.P.; Cunha, L.M.[Abstract] ; [Resumo]
Photophysical and Spectroscopic Studies of Indigo Derivatives in Their Keto and...
Melo, J. Seixas de; Moura, A. P.; Melo, M. J.A comprehensive spectroscopic and photophysical study of the keto and leuco forms of indigo and three other ring-substituted derivatives in solution was performed. The characterization involves absorption, fluorescence, and triplet−triplet absorption spectra, making it possible to obtain the quantum yields for fluorescence (phiF), singlet−triplet intersystem crossing (phiISC), internal conversion (phiIC), and l...
The Partial Revival of the Quadrature Variance Product in the Dynamics of the ...
Moura,A. P. S. de; Furuya,K.We consider the time evolution of a squeezed vacuum cavity field interacting with an initially excited two-level atom via the Jaynes-Cummings model in the Rotating Wave approximation. For large enough initial squeezing, we recognize a new partial revival phenomenon in terms of the quadrature variance product. We show the time evolution of the field quasiprobability Q-function, which provides a quadrature space ...
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