persistence

A nanoscale grating traps infrared light not through barriers but through symmetry orthogonality. What bound states in the continuum reveal about identity persistence.

A geometric two-qubit gate at ETH Zurich operates through quantum holonomy -- change determined by path geometry, not dynamics. What this reveals about identity that is constituted by change rather than preserved against it.

What lump solitons and conserved quantities suggest about identity persistence.