Berry curvature physics and quantum geometric effects have been instrumental in
advancing topological condensed matter physics in recent decades. Although Landau level …

We show that the static structure factor of general many-body systems with U (1) symmetry
has a lower bound determined only by the ground state Chern number. Our bound relies …

Conductivity in a multiband system can be divided into intra-and interband contributions,
and the latter further into symmetric and antisymmetric parts. In a flat band, intraband …

Quantum geometry, characterized by the quantum geometric tensor, is pivotal in diverse
physical phenomena in quantum materials. In condensed matter systems, quantum …

We introduce the concept of quantum weight as a fundamental property of quantum many-
body systems that is encoded in the ground-state static structure factor and characterizes …

We present the time-dependent Quantum Geometric Tensor (tQGT) as a comprehensive tool
for capturing the geometric character of insulators observable within linear response. We …

Probing the quantum geometry and topology in condensed matter systems has relied
heavily on static electronic transport experiments in magnetic fields. Yet, contact-free optical …

We establish a universal relation between the energy gap and the static dielectric constant
for all insulating states. This relation yields an upper bound on the energy gap, which only …

Flat bands that do not merely arise from weak interactions can produce exotic physical
properties, such as superconductivity or correlated many-body effects. The quantum metric …

The superconducting coplanar waveguide (SCPW) cavity plays an essential role in various
areas like superconducting qubits, parametric amplifiers, radiation detectors, and studying …