Existence of Approximately Macroscopically Unique States

Let $H$ be an infinite dimensional separable Hilbert space and $B(H)$ the C*-algebra of bounded operators on $H\mathrm{.}$ Suppose that $T_1,T_2,\mathrm{.}\mathrm{.}\mathrm{.},T_n$ are self-adjoint operators in $B(H)\mathrm{.}$ We show that, if commutators $[T_i,T_j]$ are sufficiently small in norm, then Approximately Macroscopically Unique" states always exist for any values in a synthetic spectrum of the $n$-tuple of self-adjoint operators. This is achieved under the circumstance for which the $n$-tuple may not be approximated by commuting ones. This answers a question proposed by David Mumford for measurements in quantum theory. If commutators are not small in norm but small modulo compact operators, then Approximate Macroscopic Uniqueness" states also exist.