39 citations · 156 across the 9 of their papers we have counts for
10 papers
Correlated Low-Energy Model of Monolayer 1H-NbS: A cRPA+DMFT Study
Karollaine C. Leite, Jorge L. B. de Faria, Luiz Antonio Ribeiro Junior +3
Monolayer hosts a well-separated metallic band of predominant Nb- character, providing an ideal platform to probe electronic correlatio…
Pseudogap-induced change in the nature of the Lifshitz transition in the two-dimensional Hubbard model
Maria C. O. Aguiar, Helena Bragança, Indranil Paul +1
We study the behavior of the density of states and the nematic susceptibility extracted from Raman response data across the doping-driven Lifshitz transition comparing the…
Formation of spin and charge ordering in the extended Hubbard model during a finite-time quantum quench
Isaac M. Carvalho, Helena Bragança, Walber H. Brito +1
We investigate the formation of charge and spin ordering by starting from a non-interacting state and studying how it evolves in time under a Hamiltonian with finite electronic int…
Quench dynamics and relaxation of a spin coupled to interacting leads
Helena Bragança, Moallison F. Cavalcante, R. G. Pereira +1
We study a quantum quench in which a magnetic impurity is suddenly coupled to Hubbard chains, whose low-energy physics is described by Tomonaga-Luttinger liquid theory. Using the t…
Controlling valley splitting and Polarization of dark- and bi-excitons in monolayer WS by a tilted magnetic field
Fanyao Qu, Helena Bragança, Railson Vasconcelos +3
We developed a comprehensive theoretical framework focusing on many-body effects of exciton species in monolayer WS, including bright and dark excitons, and intra- and inter-va…
Correlation-driven Lifshitz transition at the emergence of the pseudogap phase in the two-dimensional Hubbard model
Helena Braganca, Shiro Sakai, M. C. O. Aguiar +1
We study the relationship between the pseudogap and Fermi-surface topology in the two-dimensional Hubbard model by means of the cellular dynamical mean-field theory. We find two po…
Spinon and bound state excitation "light cones" in Heisenberg XXZ Chains
A. L. de Paula, H. Bragança, R. G. Pereira +2
We investigate the out-of-equilibrium dynamics after a local quench that connects two spin-1/2 XXZ chains prepared in the ground state of the Hamiltonian in different phases, one i…
Nonequilibrium localization and the interplay between disorder and interactions
Eduardo Mascarenhas, Helena Braganca, R. Drumond +2
We study the nonequilibrium interplay between disorder and interactions in a closed quantum system. We base our analysis on the notion of dynamical state-space localization, calcul…
Anderson localization effects near the Mott metal-insulator transition
Helena Braganca, M. C. O. Aguiar, J. Vucicevic +2
The interplay between Mott and Anderson routes to localization in disordered interacting systems gives rise to different transitions and transport regimes. Here, we investigate the…
Non universality of entanglement convertibility
Helena Braganca, Eduardo Mascarenhas, G. I. Luiz +4
Recently, it has been suggested that operational properties connected to quantum computation can be alternative indicators of quantum phase transitions. In this work we systematica…