https://stationarystates.com/basic-quantum-theory/projection-operators-and-symmetry/?utm_source=rss&utm_medium=rss&utm_campaign=projection-operators-and-symmetry Not only is the Universe stranger than we think, it is stranger than we can think...Hiesenberg Mon, 24 Mar 2025 22:53:02 +0000 hourly 1 https://wordpress.org/?v=6.7.2