BIOENGINEER

Silicon photonic circuit maps exceptional topology on a Klein bottle

A programmable silicon photonic circuit emulated a two-band non-Hermitian system on a Klein bottle and measured a Fermi arc ...

NumPy 2.5 eig returns complex numbers even for real matrices—the release note's workaround loses the imaginary part

The NumPy 2.5.0 release notes state that the return values of eig and eigvals will always be complex, and that ...

"Defining the Standard Model on a Lattice" — Reading a paper on constructing a gauge-invariant fermion measure for non-abelian chiral gauge theories

Paper: Nathaniel Craig, "A gauge-invariant measure for lattice chiral fermions", arXiv:2610.09093 (2026) A gauge-invariant ...