Zobrazeno 1 - 10
of 150
pro vyhledávání: '"Lyra, Marcelo L."'
Autor:
Rodrigues, Yure M. I. A., Oliveira, Matheus F. V., Souza, Andre M. C., Lyra, Marcelo L., de Moura, Francisco A. B. F., Almeida, Guilherme M. A.
The time evolution of a topological Su-Schrieffer-Heeger chain is analyzed through the statistics of speckle patterns. The emergence of topological edge states dramatically affects the dynamical fluctuations of the wavefunction. The intensity statist
Externí odkaz:
http://arxiv.org/abs/2310.20213
Publikováno v:
Physica E 158 (2024) 115887
In this work we investigate the transport properties of non-relativistic quantum particles on incommensurate multilayered structures with the thicknesses $w_n$ of the layers following an extended Harper model given by $w_n = w_0 |\cos(\pi a n^{\nu})|
Externí odkaz:
http://arxiv.org/abs/2304.13078
Publikováno v:
Phys. Rev. B 107, L241104 (2023)
In this work, we investigate the interplay between dissipation and symmetry-protected topological order. We considered the one-dimensional spin-1 Affleck-Kennedy-Lieb-Tasaki model interacting with an environment where the dissipative dynamics are des
Externí odkaz:
http://arxiv.org/abs/2211.14389
Publikováno v:
In Physica E: Low-dimensional Systems and Nanostructures April 2024 158
Publikováno v:
Phys. Rev. B 104, 024409 (2021)
Scaling aspects of Gaussian topological phase-transitions in quantum spin chains are investigated using the prototypical one-dimensional spin-1 XXZ Heisenberg model with uniaxial single-ion anisotropy $D$. This model presents a critical line separati
Externí odkaz:
http://arxiv.org/abs/2105.11846
Publikováno v:
Physica E 114210 (2020)
A transfer matrix approach is used to study the electronic transport in graphene superlattices with long-range correlated barrier spacements. By considering the low-energy electronic excitations as massless Dirac fermions, we compute by transmission
Externí odkaz:
http://arxiv.org/abs/2005.10591
Publikováno v:
In Journal of Magnetism and Magnetic Materials February 2023
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Publikováno v:
Ann. Phys. 398, 180 (2018)
We investigate a tight-binding electronic chain featuring diagonal and off-diagonal disorder, these being modelled through the long-range-correlated fractional Brownian motion. Particularly, by employing exact diagonalization methods, we evaluate how
Externí odkaz:
http://arxiv.org/abs/1711.09383
Publikováno v:
Quant. Inf. Proc. 18, 41 (2019)
We study the emergence of bipartite entanglement between a pair of spins weakly connected to the ends of a linear disordered $XY$ spin-1/2 channel. We analyze how their concurrence responds to structural and on-site fluctuations embodied by long-rang
Externí odkaz:
http://arxiv.org/abs/1711.08553