Timeline for Understanding ground state expectation values of time ordered products of operators
Current License: CC BY-SA 4.0
11 events
| when toggle format | what | by | license | comment | |
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| Jul 23, 2020 at 15:02 | comment | added | Jack Hughes | @ChiralAnomaly Brilliant, thankyou for the clear answer. | |
| Jul 23, 2020 at 1:24 | comment | added | Chiral Anomaly | @JackHughes I updated the answer to try to address your comment. | |
| Jul 22, 2020 at 15:20 | vote | accept | Jack Hughes | ||
| Jul 20, 2020 at 14:05 | comment | added | Jack Hughes | @ChiralAnomaly Furthermore, across the different books on the subject I am finding conflicting descriptions in the use of the terms "Generating functional", "partition function" and the "correlation function" or correlator. If you could explain a little about the differences, and how they fit in with this description and your answer, I would be happy to accept your answer. Best wishes. | |
| Jul 20, 2020 at 13:23 | comment | added | Jack Hughes | @ChiralAnomaly Yes I believe this is exactly the issue i'm having. | |
| Jul 17, 2020 at 0:52 | comment | added | Chiral Anomaly | To clarify: are you comfortable with the identity $$ \left. \frac{\delta}{\delta(x_1)} \frac{\delta}{\delta(x_2)} \langle 0|0\rangle_J \right|_{J=0} \propto \langle 0|T\phi(x_1)\phi(x_2)0\rangle \ \ \text{?} $$ I mean, do you just want some intuition about why the interpretations you described are consistent with this identity? | |
| Jul 16, 2020 at 13:58 | answer | added | Chiral Anomaly | timeline score: 3 | |
| Jul 16, 2020 at 6:00 | history | tweeted | twitter.com/StackPhysics/status/1283642528806440960 | ||
| Jul 15, 2020 at 22:38 | comment | added | user226006 | Zee starts his book with path integals, and then moves to Wick contractions. I found it much easier to get the hang of Wick contractions first, then to move to the PI formalism. A book I would recommend is QFT for the Gifted Amateur, which is online. | |
| Jul 15, 2020 at 20:08 | history | edited | Qmechanic♦ | CC BY-SA 4.0 |
added 6 characters in body
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| Jul 15, 2020 at 20:00 | history | asked | Jack Hughes | CC BY-SA 4.0 |