Timeline for Exact Correlation Function of the 2d Ising Problem
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22 events
| when toggle format | what | by | license | comment | |
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| Sep 1 at 18:04 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
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| Apr 27, 2018 at 15:26 | comment | added | Yvan Velenik | @P.C.Spaniel : why do you expect a closed form expression (for the limiting free energy density) to exist? There is no reason why we should be able to express it directly in terms of well-known functions... The expression involving the integral is actually not so ugly and should certainly do for a numerical comparison, for example. | |
| Apr 27, 2018 at 8:27 | answer | added | ragnar | timeline score: 0 | |
| Dec 29, 2017 at 22:28 | comment | added | P. C. Spaniel | I always thought that the relation between the fermions and the original Ising Variables was not trivial i.e. it is not obvious that the two point function for fermions is equivalent to the correlation between Ising variables... Is that the case? Thanks! | |
| Dec 29, 2017 at 22:25 | comment | added | Ruben Verresen | rewrite it in terms of fermions (i.e. use Jordan-Wigner) and then use Wick's theorem | |
| Dec 29, 2017 at 22:13 | history | asked | P. C. Spaniel | CC BY-SA 3.0 |