Zobrazeno 1 - 10
of 35 264
pro vyhledávání: '"Filho, R."'
Autor:
Bandeira, N. S., Chaves, Andrey, de Castro, L. V., Filho, R. N. Costa, Mirzakhani, M., Peeters, F. M., da Costa, D. R.
We present a systematic study of the energy levels of twisted bilayer graphene (tBLG) quantum dots (QD) and rings (QR) under an external perpendicular magnetic field. The confinement structures are modeled by a circular dot-like- and ring-like-shaped
Externí odkaz:
http://arxiv.org/abs/2410.12014
This study investigates the consistency of field localization in 5D braneworld scenarios. We derive tensorial consistency relations, Local Sum Rules, which impose constraints on braneworld models featuring quasi-localized bulk fields. We apply these
Externí odkaz:
http://arxiv.org/abs/2405.04567
Autor:
Tong, J., Fu, Y., Domaretskiy, D., Della Pia, F., Dagar, P., Powell, L., Bahamon, D., Huang, S., Xin, B., Filho, R. N. Costa, Vega, L. F., Grigorieva, I. V., Peeters, F. M., Michaelides, A., Lozada-Hidalgo, M.
Publikováno v:
Nature 2024
The basal plane of graphene can function as a selective barrier that is permeable to protons but impermeable to all ions and gases, stimulating its use in applications such as membranes, catalysis and isotope separation. Protons can chemically adsorb
Externí odkaz:
http://arxiv.org/abs/2404.06823
We explore the conformal 5D braneworld, where warping emerges through conformal symmetry breaking. Our scenario seamlessly aligns with conventional brane approaches if conformal symmetry remains unbroken. It is shown that a model with a single confor
Externí odkaz:
http://arxiv.org/abs/2401.15243
Publikováno v:
Physical Review B 108, 224433 (2023)
We use the density matrix renormalization group (DMRG) and a hard-core boson map to investigate the quantum phase transitions present in the phase diagram of the frustrated Heisenberg ladder in a magnetic field. The quantum bicritical point is observ
Externí odkaz:
http://arxiv.org/abs/2312.17399
The interplay between a magnetic field and the Coulomb potential from a charged vacancy on the electron states in graphene is investigated within the tight-binding model. The Coulomb potential removes locally Landau level degeneracy, while the vacanc
Externí odkaz:
http://arxiv.org/abs/2311.08064
This article gives a necessary first step to understanding the critical set phenomenon for the Korteweg-de Vries (KdV) equation posed on interval $[0,L]$ considering the Neumann boundary conditions with only one control input. We showed that the KdV
Externí odkaz:
http://arxiv.org/abs/2310.04977
This article presents some controllability and stabilization results for a system of two coupled linear Schr\"odinger equations in the one-dimensional case where the state components are interacting through the Kirchhoff boundary conditions. Consider
Externí odkaz:
http://arxiv.org/abs/2310.04931
This work builds upon the previous article [1] and explores the solution of the charged black string introduced in [2]. The black bounce regularization method, based on the Simpson-Visser solution, is employed by transforming the radial variable usin
Externí odkaz:
http://arxiv.org/abs/2306.03029
In this paper, we study black strings in asymptotic safety gravity (ASG) scenario. The ASG approach is introduced by implementing gravitational and cosmological running coupling constants directly in the black string metric. We calculate the Hawking
Externí odkaz:
http://arxiv.org/abs/2211.02581