activity
20122023
most citedRelations between topology and the quantum metric for Chern insulators

158 citations · 641 across the 25 of their papers we have counts for

collaborators

25 papers

cond-mat.mes-hall2023★ 8 cited

Uniqueness of Landau levels and their analogs with higher Chern numbers

Bruno Mera, Tomoki Ozawa

Landau levels are the eigenstates of a charged particle in two dimensions under a magnetic field, and are at the heart of the integer and fractional quantum Hall effects, which are…

cond-mat.mes-hall2022★ 1 cited

Singular connection approach to topological phases and resonant optical responses

Bruno Mera, Tomoki Ozawa

We introduce a class of singular connections as an alternative to the Berry connection for any family of quantum states defined over a parameter space. We find a natural applicatio…

quant-ph2022★ 20 cited

Experimental demonstration of topological bounds in quantum metrology

Min Yu, Xiangbei Li, Yaoming Chu +6

Quantum metrology is deeply connected to quantum geometry, through the fundamental notion of quantum Fisher information. Inspired by advances in topological matter, it was recently…

cond-mat.mes-hall2022★ 44 cited

Nontrivial quantum geometry of degenerate flat bands

Bruno Mera, Johannes Mitscherling

The importance of the quantum metric in flat-band systems has been noticed recently in many contexts such as the superfluid stiffness, the dc electrical conductivity, and ideal Che…

cond-mat.mes-hall2022★ 6 cited

Information geometry of quantum critical submanifolds: relevant, marginal and irrelevant operators

Bruno Mera, Nikola Paunković, Syed Tahir Amin +1

We analyze the thermodynamical limit of the quantum metric along critical submanifolds of theory space. Building upon various results previously known in the literature, we relate…

math-ph2021

Laughlin states change under large geometry deformations and imaginary time Hamiltonian dynamics

Gabriel Matos, Bruno Mera, José M. Mourão +2

We study the change of the Laughlin states under large deformations of the geometry of the sphere and the plane, associated with Mabuchi geodesics on the space of metrics with Hami…