Zobrazeno 1 - 10
of 181
pro vyhledávání: '"vernek, E."'
Publikováno v:
Phys. Rev. B 110, 115101 (2024)
We study the physics of the strong-coupling Hubbard model in a kagome lattice ribbon under mechanical tension and half-filling. It is known that in the absence of strain, the lattice symmetry of the system and strong electronic interactions induce ma
Externí odkaz:
http://arxiv.org/abs/2406.04514
Autor:
Diniz, G. S., Vernek, E.
Publikováno v:
Phys. Rev. B 109, 155127 (2024)
We have studied the Kondo effect of a spin-1/2 impurity coupled to a two-dimensional altermagnet host material. To attain the low-temperature many-body Kondo physics of the system, we have performed a numerical renormalization group calculations that
Externí odkaz:
http://arxiv.org/abs/2401.06065
The principles of ergodicity and thermalization constitute the foundation of statistical mechanics, positing that a many-body system progressively loses its local information as it evolves. Nevertheless, these principles can be disrupted when thermal
Externí odkaz:
http://arxiv.org/abs/2401.03111
Publikováno v:
Journal of Applied Physics 133, 115105 (2023)
We have investigated magnetic interactions between transition metal ions in bismuthene topological insulator with protected edge states. We find that these topological states have a crucial role on the magnetic interactions in 2D topological insulato
Externí odkaz:
http://arxiv.org/abs/2210.14658
Autor:
Diniz, G. S., Vernek, E.
Publikováno v:
Published in Phys. Rev. B 107, 045121 (2023)
In this work we investigate Majorana correlations in quantum impurities coupled to a topological superconducting wire. By employing a density matrix renormalization group approach, we have calculated the Majorana correlation functions in the ground s
Externí odkaz:
http://arxiv.org/abs/2208.09524
Autor:
Silva, W. C., Mizobata, W. N., Sanches, J. E., Ricco, L. S., Shelykh, I. A., de Souza, M., Figueira, M. S., Vernek, E., Seridonio, A. C.
We theoretically analyze the Fano interference in a single impurity multi-Weyl semimetal hybrid system and show the emergence of the topological charge Fano effect in the bulk local density of states. In multi-Weyl semimetals, the number of Fermi arc
Externí odkaz:
http://arxiv.org/abs/2203.14454
Autor:
Vernek, E.
Publikováno v:
Phys. Rev. B 105, 075124 (2022)
Stark many-body localization (SMBL) is a phenomenon observed in interacting systems with a nearly uniform spatial gradient applied field. Contrasting to the traditional many-body localization phenomenon, SMBL does not require disorder. Here we invest
Externí odkaz:
http://arxiv.org/abs/2110.08351
Publikováno v:
Phys. Rev. A 105, 042407 (2022)
In recent years, the reassessment of quantum physical phenomena under the framework of resource theories has triggered the design of novel quantum technologies that take advantage from quantum resources, such as entanglement and quantum coherence. Be
Externí odkaz:
http://arxiv.org/abs/2108.01205
Publikováno v:
Phys. Rev. B 103, 045137 (2021)
We have investigated the Kondo physics of a single magnetic impurity embedded in multi-Dirac (Weyl) node fermionic systems. By using a generic effective model for the host material and employing a numerical renormalization group approach we access th
Externí odkaz:
http://arxiv.org/abs/2101.12531
Publikováno v:
Phys. Rev. B 102, 155114 (2020)
Using the numerical renormalization group (NRG) method we study a magnetic impurity coupled to a quantum wire with Rashba and Dresselhaus spin-orbit coupling (SOC) in an external magnetic field. We consider the low-filling regime with the Fermi energ
Externí odkaz:
http://arxiv.org/abs/2007.06044