Searcharxiv⌕ Search

arXiv subjects

Olivia M. Markowich

Publications and source records attributed to Olivia M. Markowich.

2 recordsLinked to original sources

Generalizing Shell Theorem to Constant Curvature Spaces in All Dimensions and Topologies

A gravitational potential has the spherical property when the field outside any uniform spherical shell is indistinguishable from that of a point mass at the center. We present the general potentials that possess this property on constant curvature spaces, using the Euler-Poisson-Darboux identity for spherical means. Our results are consistent with known findings in flat three-dimensional space and reduce to Gurzadyan's cosmological theorem when the rescaling factor is exactly $1$. Our approach naturally extends to nontrivial spatial topologies.

physics.class-ph↗

Size and Shape of Fuzzy Spheres from Matrix/Membrane Correspondence

We study the size and shape statistics of ground state fuzzy spheres when projected onto the transverse plane, utilizing the regularized SU(N=2) matrix model in D=(1+3)-dimensional spacetime. We show that they appear as ellipses, from matrix/membrane correspondence. With our numerical and analytical approximation for the ground state wavefunction, we provide estimations for their expectation surface areas, perimeters, eccentricities, and shape-parameters. These geometric constants of quantum membranes deviate drastically from classical mechanics.

quant-ph↗