Zobrazeno 1 - 10
of 133
pro vyhledávání: '"Silva, Luis G."'
Autor:
Marques, Mateus, Melo, Bruno M. de Souza, Rocha, Alexandre R., Lewenkopf, Caio, da Silva, Luis G. G. V. Dias
We explore the phase diagram of the Mott metal-insulator transition (MIT), focusing on the effects of particle-hole asymmetry (PHA) in the single-band Hubbard model. Our dynamical mean-field theory (DMFT) study reveals that the introduction of PHA in
Externí odkaz:
http://arxiv.org/abs/2409.06674
Multiband superconductors have featured one of the main challenges to achieve a comprehensive understanding of unconventional superconductivity. Here, the multiband character is studied separately as orbital and sublattice degrees of freedom, as they
Externí odkaz:
http://arxiv.org/abs/2403.02453
Publikováno v:
Phys. Rev. B 109, 184502 (2024)
Magic-angle twisted bilayer graphene (MATBG) has been extensively explored both theoretically and experimentally as a suitable platform for a rich and tunable phase diagram that includes ferromagnetism, charge order, broken symmetries, and unconventi
Externí odkaz:
http://arxiv.org/abs/2309.02178
Publikováno v:
Supercond. Sci. Technol. 36, 034003 (2023)
We propose a method to distinguish between trivial and topological, Majorana, zero-energy states in both short and long superconductor-normal-superconductor junctions based on Rashba nanowires using phase-biased equilibrium transport measurements. In
Externí odkaz:
http://arxiv.org/abs/2209.02094
Autor:
Teixeira, Raphael L. R. C., Haller, Andreas, Singh, Roshni, Mathew, Amal, Idrisov, Edvin G., da Silva, Luis G. G. V. Dias, Schmidt, Thomas L.
Publikováno v:
Phys. Rev. Research 4, 043094 (2022)
Parafermion bound states (PBSs) are generalizations of Majorana bound states (MBSs) and have been predicted to exist as zero-energy eigenstates in proximitized fractional quantum Hall edge states. Similarly to MBSs, a finite distance between the PBS
Externí odkaz:
http://arxiv.org/abs/2206.14101
Publikováno v:
Phys. Rev. B 107 184509 (2023)
Caroli-de Gennes-Matricon (CdGM) states are localized states with a discrete energy spectrum bound to the core of vortices in superconductors. In topological superconductors, CdGM states are predicted to coexist with zero-energy, chargeless states wi
Externí odkaz:
http://arxiv.org/abs/2204.05078
Publikováno v:
Phys. Rev. B 105, 195121 (2022)
Parafermions modes are non-Abelian anyons which were introduced as $\mathbb{Z}_N$ generalizations of $\mathbb{Z}_2$ Majorana states. In particular, $\mathbb{Z}_3$ parafermions can be used to produce Fibonacci anyons, laying a path towards universal t
Externí odkaz:
http://arxiv.org/abs/2111.10147
Autor:
de Medeiros, Marcos H. L., Teixeira, Raphael L. R. C., Sipahi, Guilherme M., da Silva, Luis G. G. V. Dias
Publikováno v:
Phys. Rev. B 104 195307 (2021)
Inverted-gap GaSb/InAs quantum wells have long been predicted to show quantum spin Hall insulator (QSHI) behavior. The experimental characterization of the QSHI phase in these systems has relied on the presence of quantized edge transport near charge
Externí odkaz:
http://arxiv.org/abs/2108.01968
Publikováno v:
Phys. Rev. Research 3, 033014 (2021)
Parafermionic zero modes, $\mathbb{Z}_n$-symmetric generalizations of the well-known $\mathbb{Z}_2$ Majorana zero modes, can emerge as edge states in topologically nontrivial strongly correlated systems displaying fractionalized excitations. In this
Externí odkaz:
http://arxiv.org/abs/2103.16278
Autor:
Teixeira, Raphael L. R. C., Kuzmanovski, Dushko, Black-Schaffer, Annica M., da Silva, Luis G. G. V. Dias
Publikováno v:
Phys. Rev. B 102, 165312 (2020)
The most promising mechanisms for the formation of Majorana bound states (MBSs) in condensed matter systems involve one-dimensional systems (such as semiconductor nanowires, magnetic chains, and quantum spin Hall insulator (QSHI) edges) proximitized
Externí odkaz:
http://arxiv.org/abs/2007.02793