4 papers
Structural glasses model using disorder fields: the boson peak from local ground states
M. M. Balbino, I. P. de Freitas, A. M. S. Macedo +2
We show the emergence of a contribution characteristic of the boson peak in the spectral density of structural glasses. To model the vitreous state, we consider static density-fluc…
Tunneling in double-well potentials within Nelson's stochastic mechanics: Application to ammonia inversion
Danilo F. Schafaschek, Giovani L. Vasconcelos, Antônio M. S. Macêdo
Nelson's stochastic mechanics formulates quantum dynamics as a real-time conservative diffusion process in which a particle undergoes Brownian-like motion with a fluctuation amplit…
Coexistent multifractal mesoscopic fluctuations in Integer Quantum Hall Transition and in Orbital Hall Transition
Nathan L. Pessoa, Antônio M. S. Macêdo, Anderson L. R. Barbosa
We show that the integer quantum Hall transition in a disordered nanowire with orbital momentum-space texture connected to four terminals is accompanied by an orbital Hall transiti…
Compactifying Electronic Wavefunctions I: Error-Mitigated Transcorrelated DMRG
Bruna G. M. Araújo, Antonio M S Macedo
Transcorrelation (TC) techniques effectively enhance convergence rates in strongly correlated fermionic systems by embedding electron-electron cusp into the Jastrow factor of simil…