Publications (12)
The Resistivity of High-Tc Cuprates
R. Arouca, E. C. Marino
We show that the resistivity in each phase of the High-Tc cuprates is a special case of a general expression derived from the Kubo formula. We obtain, in particular, the T-linear b…
Non-Hermitian quantum gases: a platform for imaginary time crystals
R. Arouca, E. C. Marino, C. Morais Smith
One of the most important applications of quantum mechanics is the thermodynamic description of quantum gases. Despite the fundamental importance of this topic, a comprehensive des…
Thermodynamics of a Higher-Order Topological Insulator
R. Arouca, S. N. Kempkes, C. Morais Smith
We investigate the order of the topological quantum phase transition in a two dimensional quadrupolar topological insulator within a thermodynamic approach. Using numerical methods…
Quantum Field Theory Anomalies in Condensed Matter Physics
R. Arouca, Andrea Cappelli, T. H. Hansson
We give a pedagogical introduction to quantum anomalies, how they are calculated using various methods, and why they are important in condensed matter theory. We discuss axial, chi…
Unconventional scaling at non-Hermitian critical points
R. Arouca, C. H. Lee, C. Morais Smith
Critical phase transitions contain a variety of deep and universal physics, and are intimately tied to thermodynamic quantities through scaling relations. Yet, these notions are ch…
Thermodynamics and entanglement entropy of the non-Hermitian SSH model
D. F. Munoz-Arboleda, R. Arouca, C. Morais Smith
Topological phase transitions are found in a variety of systems and were shown to be deeply related with a thermodynamic description through scaling relations. Here, we investigate…
Emergence of Imaginary Time Crystals in the non-Hermitian Su-Schrieffer-Heeger model
E. Slootman, L. Eek, C. Morais Smith +1
Parity-time symmetry constrains the spectrum of non-Hermitian systems to be either real or come in complex conjugate pairs. The transition between a symmetry-preserving phase with…
Topological edge and corner states in Bi fractals on InSb
R. Canyellas, Chen Liu, R. Arouca +10
Topological materials hosting metallic edges characterized by integer quantized conductivity in an insulating bulk have revolutionized our understanding of transport in matter. The…
Breaking and resurgence of symmetry in the non-Hermitian Su-Schrieffer-Heeger model in photonic waveguides
E. Slootman, W. Cherifi, L. Eek +4
Symmetry is one of the cornerstones of modern physics and has profound implications in different areas. In symmetry-protected topological systems, symmetries are responsible for pr…
Magnetic Field Effects on the Transport Properties of High-Tc Cuprates
E. C. Marino, R. Arouca
Starting from a recently proposed comprehensive theory for the high-Tc superconductivity in cuprates, we derive a general analytic expression for the planar resistivity, in the pre…
Superconducting and Pseudogap Transition Temperatures in High-Tc Cuprates and the Dependence on Pressure
E. C. Marino, Reginaldo O. Corrêa, R. Arouca +2
We derive analytic expressions for the critical temperatures of the superconducting (SC) and pseudogap (PG) transitions of the high-Tc cuprates as a function of doping. These are i…
Topological superconductivity enhanced by exceptional points
R. Arouca, Jorge Cayao, Annica M. Black-Schaffer
Majorana zero modes (MZMs) emerge as edge states in topological superconductors and are promising for topological quantum computation, but their detection has so far been elusive.…