84 citations · 751 across the 59 of their papers we have counts for
6 papers · 1 filter
Topological Phase Transitions with Zero Indirect Band Gap
Giandomenico Palumbo
Topological phase transitions in band models are usually associated to the gap closing between the highest valance band and the lowest conduction band, which can give rise to diffe…
Geometric semimetals and their simulation in synthetic matter
Yu-Ping Lin, Giandomenico Palumbo
Topological semimetals, such as the Weyl and Dirac semimetals, represent one of the most active research fields in modern condensed matter physics. The peculiar physical properties…
Exploring Parity Magnetic Effects through Experimental Simulation with Superconducting Qubits
Yu Zhang, Yan-Qing Zhu, Jianwen Xu +8
We present the successful realization of four-dimensional (4D) semimetal bands featuring tensor monopoles, achieved using superconducting quantum circuits. Our experiment involves…
Covariant fracton gauge theory with boundary
Erica Bertolini, Nicola Maggiore, Giandomenico Palumbo
In this paper we study the consequences of the introduction of a flat boundary on a 4D covariant rank-2 gauge theory described by a linear combination of linearized gravity and cov…
Noncommutative Geometry and Deformation Quantization in the Quantum Hall Fluids with Inhomogeneous Magnetic Fields
Giandomenico Palumbo
It is well known that noncommutative geometry naturally emerges in the quantum Hall states due to the presence of strong and constant magnetic fields. Here, we discuss the underlyi…
Second Euler number in four dimensional synthetic matter
Adrien Bouhon, Yan-Qing Zhu, Robert-Jan Slager +1
Two-dimensional Euler insulators are novel kind of systems that host multi-gap topological phases, quantified by a quantised first Euler number in their bulk. Recently, these phase…