2D coherent states E = mc2 from Heisenberg’s uncertainty relations Fock states Hilbert–Schmidt measure Landau gauge SU(2) coherent states Sudarshan angular momentum anisotropic harmonic oscillator apology arbitrary linear gauge bound entanglement cavity QED setup center-of-orbit coordinates circular gauge coherent states elliptic and hyperbolic solenoids entangled states entanglement entanglement witness graphs group representations harmonic oscillator interference phenomenon isotropic harmonic oscillator magnetic moment microstructure, oxidation, durability, cement replacement, homogeneous grain multiport devices mutually unbiased bases n/a