{"id":8431,"date":"2009-03-20T17:33:00","date_gmt":"2009-03-20T17:33:00","guid":{"rendered":"http:\/\/melotopia.net\/b\/?p=8431"},"modified":"2009-03-20T17:33:00","modified_gmt":"2009-03-20T17:33:00","slug":"%eb%a7%88%eb%b2%95%ec%9d%98-%eb%b6%84%eb%b0%b0%ed%95%a8%ec%88%98-3","status":"publish","type":"post","link":"http:\/\/melotopia.net\/b\/?p=8431","title":{"rendered":"\ub9c8\ubc95\uc758 \ubd84\ubc30\ud568\uc218 3"},"content":{"rendered":"
\n \uc774\uc81c, \ubd84\ubc30\ud568\uc218\ub97c \uc5b4\ub514\ub2e4 \uc4f0\ub294\uc9c0 \uc54c\uc544\ubcf4\uc790.
\n
\n \uc77c\ub2e8…
\n
\n $Z = \\sum exp(-\\beta E_i)$<\/p>\n

\uc798 \uc9f8\ub824\ubcf4\uc790. \uc800\uac74 \uadf8\ub0e5 \ud655\ub960\uc744 \ub2e4 \ub354\ud55c \uac12\uc774\ub2e4. \uadf8\ub9ac\uace0 \uc5d0\ub108\uc9c0\uac00 \ub4e4\uc5b4\uac00 \uc788\ub2e4.
\n
\n i\ubc88\uc9f8 \uc0c1\ud0dc\uc5d0 \ud574\ub2f9\ud558\ub294 \uc5b4\ub5a4 \ubb3c\ub9ac\ub7c9 $a_i$\uac00 \uc788\ub2e4\uace0 \ud574 \ubcf4\uc790. \uadf8\ub7fc $a_i$\uc758 \ud3c9\uade0\uc740 \ud655\ub960\uc744 \uacf1\ud574\uc11c \ub2e4 \ub354\ud558\uba74 \ub41c\ub2e4.
\n
\n $=\\sum P(i)a_i$
\n
\n \uadf8\ub7f0\ub370
\n
\n $P(i)=exp(-\\beta E_i)\/Z$
\n
\n \ub77c\uace0 \ud588\ub2e4. \ub530\ub77c\uc11c
\n
\n $=\\sum exp(-\\beta E_i)a_i\/Z$
\n
\n \uc774\ub807\uac8c \ub41c\ub2e4.
\n
\n \uc544\uc9c1 \uac10\uc774 \uc798 \uc548\uc628\ub2e4. \uc5d0\ub108\uc9c0\uc758 \ud3c9\uade0\uac12\uc744 \uad6c\ud574\ubcf4\uc790.
\n
\n $=\\sum exp(-\\beta E_i)E_i\/Z$
\n
\n \ud760…\ubb50\uc9c0?
\n
\n \uc544\uc8fc \uc798 \uc9f8\ub824\ubcf4\uba74, \ub2e4\uc74c\uacfc \uac19\uc774 \uc368\ub3c4 \ub41c\ub2e4\ub294 \uac78 \uc54c \uc218 \uc788\ub2e4.
\n
\n $=-\\frac{\\partial}{\\partial\\beta}ln(Z)$
\n
\n \uc798 \uc774\ud574\uac00 \uc548\ub418\uba74 \uc9c1\uc811 Z\ub97c \ub300\uc785\ud574\uc11c \ubbf8\ubd84\ud574 \ubcf4\uba74 \ub41c\ub2e4.<\/p>\n

\uc5d0\ub108\uc9c0\uc758 \ubd84\uc0b0\ub3c4 \uad6c\ud560 \uc218 \uc788\ub2e4. \uadf8\ub0e5 \ud55c\ubc88 \ub354 \ubbf8\ubd84\ud558\uba74 \ub41c\ub2e4.
\n
\n $<\\Delta E^2>=\\frac{\\partial^2 ln(Z)}{\\partial^2 \\beta}$<\/p>\n

\uc5f4\uc6a9\ub7c9\uc740 \uc628\ub3c4 \ubcc0\ud654\uc5d0 \ub530\ub978 \uc5d0\ub108\uc9c0\uc758 \ubcc0\ud654\uc728\uc774\ubbc0\ub85c \uc628\ub3c4\ub85c \ubbf8\ubd84\ud558\uba74 \ub41c\ub2e4 \uc628\ub3c4\ub294 $T=1\/(k\\beta)$ \ub85c \ud45c\uc2dc\ub41c\ub2e4.
\n
\n $C=\\frac{\\partial }{\\partial T}$<\/p>\n

\uadf8 \uc720\uba85\ud55c \uc5d4\ud2b8\ub85c\ud53c\ub3c4 \uc5ec\uae30\uc11c \uad6c\ud560 \uc218 \uc788\ub2e4.
\n
\n $S=\\frac{\\partial}{\\partial T}(kT*ln(Z))$<\/p>\n

\uc989, \ubd84\ubc30\ud568\uc218\ub9cc \uc54c\uba74 \uc5f4\uc5ed\ud559\uc5d0\uc11c \uc4f0\ub294 \uac70\uc758 \ubaa8\ub4e0 \uc885\ub958\uc758 \uac12\ub4e4\uc744 \ub2e4 \uc54c\uc544\ub0bc \uc218 \uc788\ub2e4\ub294 \uac83\uc774\ub2e4.
\n
\n \ub530\ub77c\uc11c \ub9c8\ubc95\uacfc \uac19\uc740 \ud568\uc218\uac00 \ub41c\ub2e4.
\n <\/p>\n

\n
\n
\n\"\uc2e0\uace0\"
\n<\/a>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

\uc774\uc81c, \ubd84\ubc30\ud568\uc218\ub97c \uc5b4\ub514\ub2e4 \uc4f0\ub294\uc9c0 \uc54c\uc544\ubcf4\uc790. \uc77c\ub2e8… $Z = \\sum exp(-\\beta E_i)$ \uc798 \uc9f8\ub824\ubcf4\uc790. \uc800\uac74 \uadf8\ub0e5 \ud655\ub960\uc744 \ub2e4 \ub354\ud55c \uac12\uc774\ub2e4. \uadf8\ub9ac\uace0 \uc5d0\ub108\uc9c0\uac00 \ub4e4\uc5b4\uac00 \uc788\ub2e4. i\ubc88\uc9f8 \uc0c1\ud0dc\uc5d0 \ud574\ub2f9\ud558\ub294 \uc5b4\ub5a4 \ubb3c\ub9ac\ub7c9 $a_i$\uac00 \uc788\ub2e4\uace0 \ud574 \ubcf4\uc790. \uadf8\ub7fc $a_i$\uc758 \ud3c9\uade0\uc740 \ud655\ub960\uc744 \uacf1\ud574\uc11c \ub2e4 \ub354\ud558\uba74 \ub41c\ub2e4. $=\\sum P(i)a_i$ \uadf8\ub7f0\ub370 $P(i)=exp(-\\beta E_i)\/Z$ \ub77c\uace0 \ud588\ub2e4. \ub530\ub77c\uc11c $=\\sum exp(-\\beta E_i)a_i\/Z$ \uc774\ub807\uac8c \ub41c\ub2e4. \uc544\uc9c1 \uac10\uc774 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[2],"tags":[],"class_list":["post-8431","post","type-post","status-publish","format-standard","hentry","category-academic"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p8o6gA-2bZ","jetpack-related-posts":[],"jetpack_likes_enabled":true,"_links":{"self":[{"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=\/wp\/v2\/posts\/8431","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8431"}],"version-history":[{"count":0,"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=\/wp\/v2\/posts\/8431\/revisions"}],"wp:attachment":[{"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8431"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8431"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8431"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}