acroscopic States and Operator Algebras
In the First International Congress of Basic Science held in 2023, David Mumford gave the opening plenary lecture on Consciousness, robots and DNA. When he discussed on DNA being a measuring instrument opening a Pandora's box, he asked
whether there are "Approximate Macroscopic Unique" states in quantum measurements. Let $T_1, T_2,...,T_n$ be $n$-tuple of selfadjoint operators on an infinite dimensional Hilbert space $H.$ We show that when the commutators are sufficiently small, there are indeed AMU states for the $n$-tuple observables. This is achieved under the circumstance for which the $n$-tuple may not be approximated by commuting ones.