91-47 Uhlmann A.
An Energy Dispersion Estimate (9K, LaTeX) Oct 26, 91
Abstract , Paper (src), View paper (auto. generated ps), Index of related papers

Abstract. Given the density operator \$\varrho_1\$ as an initial value of an Hamiltonian motion that evolves in a time interval \$\Delta t\$ to \$\varrho_2\$. Let \$\Delta E\$ be the energy dispersion (or energy uncertainty) of the motion. Then \$\Delta t \, \Delta E\$ can be estimated from below by comparing the length of the Hamiltonian curve with a geodesic joining the initial and the final density operator. The lengths are calculated in the Bures metric.

Files: 91-47.tex