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quant-ph2026
Quantum Entanglement, Stratified Spaces, and Topological Matter: Towards Entanglement-Sensitive Langlands Data
Kazuki Ikeda, Steven Rayan
Using the spinless Haldane model, we study the witness-filtered Berry curvature, quantum geometric tensor, and quantum Fisher information on the gapped strata of the parameter spac…
quant-ph2026
Introduction to Quantum Entanglement Geometry
Kazuki Ikeda
This article is an expository account aimed at viewing entanglement in finite-dimensional quantum many-body systems as a phenomenon of global geometry. While the mathematics of gen…
quant-ph2025
Exceeding the maximum classical energy density in fully charged quantum batteries
Masahiro Hotta, Kazuki Ikeda
Quantum batteries are anticipated to achieve significant advancements in energy storage capacity. In classical batteries, the energy density at each subsystem reaches its maximum v…