MAP-Fis Research Conference

Session

Condensed Matter Physics and Nanomaterials II (Chairs: André Chaves, UM and João Viana Lopes, UP)

2 Oct 2026, 14:15

Anfiteatro de Química, Ed. 6 - 2.46 (School of Sciences)

192. Linear-Scaling Estimation of Local Observable Maps

Henrique Veiga (Centro de Física das Universidades do Porto e Minho; University of York)

02/10/2026, 14:15

Contributed Talk (20 minutes)

In condensed matter systems where translational invariance is inevitably or deliberately broken, probing local observables is paramount to addressing a
wealth of intriguing phenomena, such as multifractality, quasiparticle interference and real-space orbital magnetic textures.
In this talk we show that the well-known computational bottleneck of computing local properties in non-periodic...

178. Optical Signature of Bulk Vacancies in Nodal Line Semimetals

João Santos Silva (CF-UM-UP, Centro de Física do Porto, FCUP)

02/10/2026, 14:35

Contributed Talk (20 minutes)

Weyl nodal loop semimetals are topological semimetals where the valence and conduction bands linearly touch along one dimensional loops in momentum space. A manifestation of their non-trivial topology is the presence of zero energy surface states, induced by chiral symmetry, on surfaces parallel to the loop plane. Unlike their insulator counterparts, these exotic phases may be unstable to...

179. Real-Space Theory of Nonequilibrium Orbital Magnetization in Non-crystalline Systems

João Pinho (Centro de Física do Porto)

02/10/2026, 14:55

Contributed Talk (20 minutes)

The nonequilibrium generation of orbital magnetization by applied electric fields is a central problem in the emerging field of orbitronics [1,2]. Its theoretical description, however, is challenging because the conventional expression for orbital magnetization involves the position operator, which is ill-defined under periodic boundary conditions. Although the modern theory of orbital...

195. Tensor network approach to real-space superconductivity in quasicrystals

Ricardo Oliveira (Centro de Física das Universidades do Minho e Porto, LaPMET)

02/10/2026, 15:15

Contributed Talk (20 minutes)

The recent discovery of superconductivity in quasiperiodic twisted trilayer graphene (tTLG) underscores the complex interplay between quasiperiodicity and interactions in moiré materials [1]. Furthermore, previous work by the authors [2] has shown that quasiperiodicity can lead to an enhancement of superconductivity in one-dimensional quasiperiodic models. However, a proper theoretical...

215. Quantics Purification Mean-Field Approach to 2D Moiré Materials

Nicolau Sobrosa

02/10/2026, 15:35

Contributed Talk (20 minutes)

The emergence of correlated phases, such as unconventional superconductivity, in
two-dimensional moiré materials is one of the most fascinating developments in condensed
matter physics. However, the interplay between the large-scale moiré patterns, the formation of
flat bands, and the subsequent interaction-induced phases poses a significant challenge for
numerical simulations. In...