Comparing metrics for mixed quantum states: Sjöqvist and Bures
Sign Up to like & getrecommendations! Published in 2023 at "Physical Review A"
DOI: 10.1103/physreva.107.052411
Abstract: It is known that there are infinitely many distinguishability metrics for mixed quantum states. This freedom, in turn, leads to metric-dependent interpretations of physically meaningful geometric quantities such as complexity and volume of quantum states.… read more here.
Keywords: two metrics; metrics mixed; mixed quantum; comparing metrics ... See more keywords
A Noncommutative Model of Cosmology with Two Metrics
Sign Up to like & getrecommendations! Published in 2020 at "Symmetry"
DOI: 10.3390/sym12030435
Abstract: We propose a bicosmology model which reduces to the classical analog of noncommutative quantum mechanics. From this point of view, one of the sources in the so modified Friedmann-Robertson- Walker equations is a kind of… read more here.
Keywords: cosmology two; model cosmology; cosmology; model ... See more keywords