… that’s not totally correct, because a macroscopic state, even in principle, cannot be a superposition of macroscopic eigenstates.
A macrosopic state is an actual physical state.
A macrosopic state, by definition, cannot be a superposition of different macroscopic states. A superposition must be of different macroscopically-indistinguishable microscopic states.
In other words, a physical state, by definition, cannot be a superposition of different physically-distinguishable physical states. A superposition must be of different physically-indistinguishable mathematical states.
2022.05.17 Tuesday (c) All rights reserved by ACHK
Sharing knowledge is the most fundamental act of friendship. Because it is a way you can give something without loosing something.
— Richard Stallman
Name: Jimmy “Jimbo” Wales
Job: Founder, Wikipedia
Passion: Information for everyone
Turning Point: An operation that saved his daughter’s life taught him the need to stockpile rare knowledge such as her doctor’s
He wipes it off and begins haltingly.
“At the end of the procedure, I realized how precious the doctor’s knowledge was. It occurred to me that no one other than this doctor would ever know about this whole thing. There had to be a way.” And that is how Wikipedia came about.
— Daddy has Kira to Thank
— by Subroto Bagchi | Jun 5, 2009
2022.05.17 Tuesday ACHK