Timeline for In what sense are Pauli matrices measurement operators?
Current License: CC BY-SA 4.0
10 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 6, 2021 at 22:06 | vote | accept | Quantum Guy 123 | ||
| Jul 6, 2021 at 7:11 | history | edited | glS♦ | CC BY-SA 4.0 |
edited tags; edited tags
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| Jul 5, 2021 at 23:24 | answer | added | glS♦ | timeline score: 3 | |
| Jul 5, 2021 at 23:15 | comment | added | Quantum Guy 123 | so I guess the Pauli matrices are projective measurements then? | |
| Jul 5, 2021 at 23:14 | comment | added | Quantum Guy 123 | oh boy... must be my monday-brain... | |
| Jul 5, 2021 at 23:14 | history | edited | Quantum Guy 123 | CC BY-SA 4.0 |
whoops
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| Jul 5, 2021 at 23:08 | comment | added | glS♦ | yes. I'm asking why you think that particular inequality is true. What calculation did you make? | |
| Jul 5, 2021 at 23:08 | comment | added | Quantum Guy 123 | it is a property of projectors that $P = P^2$. Seen in exercise 2.16 of Neilson and Chuang: "Show that any projector $P$ satisfies the equation $P^2$ = $P$." | |
| Jul 5, 2021 at 23:02 | comment | added | glS♦ | why do you say $|+\rangle\!\langle+|\neq(|+\rangle\!\langle+|)^2$? | |
| Jul 5, 2021 at 22:54 | history | asked | Quantum Guy 123 | CC BY-SA 4.0 |