Zobrazeno 1 - 10
of 128
pro vyhledávání: '"Prado, Sandra"'
Autor:
da Silva, Roberto, Prado, Sandra D.
Cross-Correlation random matrices have emerged as a promising indicator of phase transitions in spin systems. The core concept is that the evolution of magnetization encapsulates thermodynamic information [R. da Silva, Int. J. Mod. Phys. C, 2350061 (
Externí odkaz:
http://arxiv.org/abs/2408.08237
We investigate the effects of classical stickiness (orbits temporarily confined to a region of the chaotic phase space) to the structures of the quantum states of an open system. We consider the standard map of the kicked rotor and verify that region
Externí odkaz:
http://arxiv.org/abs/2407.08780
The quantum approximate optimization algorithm (QAOA) can require considerable processing time for developers to test and debug their codes on expensive quantum devices. One avenue to circumvent this difficulty is to use the error maps of quantum dev
Externí odkaz:
http://arxiv.org/abs/2404.03501
Publikováno v:
Phys. Rev. A 109, 013501 (2024)
The statistical properties of speckle patterns have important applications in optics, oceanography, and transport phenomena in disordered systems. Here we obtain closed-form analytic results for the amplitude distribution of speckle patterns formed b
Externí odkaz:
http://arxiv.org/abs/2310.07425
Autor:
da Silva, Roberto, Prado, Sandra D.
This study explores the application of random matrices to track chaotic dynamics within the Chirikov standard map. Our findings highlight the potential of matrices exhibiting Wishart-like characteristics, combined with statistical insights from their
Externí odkaz:
http://arxiv.org/abs/2310.04344
Autor:
da Silva, Roberto, Fernandes, Heitor C., Filho, Eliseu Venites, Prado, Sandra D., de Felício, J. R. Drugowich
How a system initially at infinite temperature responds when suddenly placed at finite temperatures is a way to check the existence of phase transitions. It has been shown in [R. da Silva, IJMPC 2023] that phase transitions are imprinted in the spect
Externí odkaz:
http://arxiv.org/abs/2303.02003
Our research highlights the effectiveness of utilizing matrices akin to Wishart matrices, derived from magnetization time series data under specific dynamics, to elucidate phase transitions and critical phenomena in the Q-state Potts model. By employ
Externí odkaz:
http://arxiv.org/abs/2302.07990
Autor:
Bonatto, Cristian, Prado, Sandra D., Metz, Fernando L., Schoffen, Júlio R., Correia, Ricardo R. B., Hickmann, Jandir M.
Publikováno v:
Physical Review E 2020 102 052219
Extreme or rogue waves are large and unexpected waves appearing with higher probability than predicted by Gaussian statistics. Although their formation is explained by both linear and nonlinear wave propagation, nonlinearity has been considered a nec
Externí odkaz:
http://arxiv.org/abs/1912.13390
Autor:
da Silva, Roberto, Prado, Sandra D.
In this paper, we study the effects of correlated random phases in the intensity of a superposition of $N$ wave-fields. Our results suggest that regardless of whether the phase distribution is continuous or discrete if the phases are random correlate
Externí odkaz:
http://arxiv.org/abs/1911.00827