{"id":1126,"date":"2026-07-20T16:21:32","date_gmt":"2026-07-20T07:21:32","guid":{"rendered":"https:\/\/hyandmj.asuscomm.com\/hblog\/?p=1126"},"modified":"2026-07-20T16:28:30","modified_gmt":"2026-07-20T07:28:30","slug":"%eb%b9%84%eb%8c%80%ec%b9%ad%eb%8f%84asymmetry%ec%9d%98-%ed%86%b5%ea%b3%84%ec%a0%81-%ec%b8%a1%ec%a0%95%ec%98%a4%ec%b0%a8-%ea%b3%84%ec%82%b0","status":"publish","type":"post","link":"https:\/\/hyandmj.asuscomm.com\/hblog\/?p=1126","title":{"rendered":"\ube44\ub300\uce6d\ub3c4asymmetry\uc758 \ud1b5\uacc4\uc801 \uce21\uc815\uc624\ucc28 \uacc4\uc0b0"},"content":{"rendered":"\n

Motivation<\/h1>\n\n\n\n

\ube44\ub300\uce6d\ub3c4\uacfc \ube44\ub300\uce6d\ub3c4\uc758 \ud1b5\uacc4\uc801 \uce21\uc815\uc624\ucc28<\/h2>\n\n\n\n

\ud575\ubb3c\ub9ac, \uc785\uc790\ubb3c\ub9ac\uc5d0\uc11c\ub294 \uc5b4\ub5a4 \ubb3c\ub9ac\ud604\uc0c1\uc758 \ube44\ub300\uce6d\ub3c4\ub97c \uce21\uc815\ud558\ub294 \uacbd\uc6b0\uac00 \ub9ce\ub2e4. \ubcf4\ud1b5\uc740 \uc785\uc790\uac80\ucd9c\uae30\uc5d0\uc11c \uac80\ucd9c\ub418\ub294 \uc785\uc790\uc758 \uc6b4\ub3d9\ub7c9\uc758 \ubc29\ud5a5\uc5d0 \ub530\ub77c \uc67c\ucabd(left)\uacfc \uc624\ub978\ucabd(right)\uc73c\ub85c \uad6c\ubd84\ud558\uace4 \ud55c\ub2e4. \uc608\ub97c \ub4e4\uba74 \uc591\uc131\uc790\uac00 \ud0c4\uc18c-12 \ud575\uacfc \uac15\ud55c \uc0c1\ud638\uc791\uc6a9\uc5d0 \uc758\ud574 \ud0c4\uc131(\ud639\uc740 \ube44\ud0c4\uc131) \uc0b0\ub780\ub418\ub294 \uacbd\uc6b0\uac00 \uc788\ub2e4. \uac15\ud55c \uc0c1\ud638\uc791\uc6a9\uc740 \uc0b0\ub780 \ubc29\ud5a5\uc5d0 \uce58\uc6b0\uce68\uc774 \uc5c6\uc73c\ub098, \uc591\uc131\uc790\uc758 \uc2a4\ud540\uc744 \uace0\ub824\ud558\uba74 \uc804\uc790\uae30\uc801 \uc0c1\ud638\uc791\uc6a9\uc5d0 \uc758\ud574 \ube44\ub300\uce6d\uc801\uc778 \uc0b0\ub780 \ubd84\ud3ec\ub97c \ubcf4\uc778\ub2e4. \uac80\ucd9c\uae30\uc758 \uc88c\uce21\uc5d0\uc11c \uac80\ucd9c\ub41c \uc785\uc790\uc758 \uac1c\uc218\ub97c L<\/mi>L<\/annotation><\/semantics><\/math>, \uc6b0\uce21\uc5d0\uc11c \uac80\ucd9c\ub41c \uc785\uc790\uc758 \uac1c\uc218\ub97c R<\/mi>R<\/annotation><\/semantics><\/math>\uc774\ub77c \ud558\uc790. \uc774\ub54c \ube44\ub300\uce6d\uc758 \uc815\ub3c4\uc778 \ube44\ub300\uce6d\ub3c4asymmetry \u03b5<\/mi>\\varepsilon<\/annotation><\/semantics><\/math>\uc744<\/p>\n\n\n\n
\u03b5<\/mi>\u2261<\/mo>L<\/mi>\u2212<\/mo>R<\/mi><\/mrow>L<\/mi>+<\/mo>R<\/mi><\/mrow><\/mfrac><\/mrow>\\varepsilon\\equiv\\frac{L-R}{L+R}<\/annotation><\/semantics><\/math><\/div>\n\n\n\n

\uc640 \uac19\uc774 \uc815\uc758\ud558\uc790. \uc774 \u03b5<\/mi>\\varepsilon<\/annotation><\/semantics><\/math>\uc758 \ud1b5\uacc4\uc801 \uce21\uc815\uc624\ucc28\uac00 \uad81\uae08\ud558\ub2e4. \u03b5<\/mi>\\varepsilon<\/annotation><\/semantics><\/math>\uc740 L<\/mi>L<\/annotation><\/semantics><\/math>\uacfc R<\/mi>R<\/annotation><\/semantics><\/math>\uc5d0 \uc758\ud574 \uacb0\uc815\ub418\ubbc0\ub85c, \ub450 \ubcc0\uc218\uc758 \ud1b5\uacc4\uc801 \uc624\ucc28 d<\/mi>L<\/mi><\/mrow>dL<\/annotation><\/semantics><\/math>, d<\/mi>R<\/mi><\/mrow>dR<\/annotation><\/semantics><\/math>\uc774 \uac01\uac01 L<\/mi>L<\/annotation><\/semantics><\/math>, R<\/mi>R<\/annotation><\/semantics><\/math>\ubcf4\ub2e4 \ucda9\ubd84\ud788 \uc791\ub2e4\uba74 \uc624\ucc28 \uc804\ud30cerror propagation\ub97c \uc801\uc6a9\ud560 \uc218 \uc788\uc744 \uac83 \uac19\ub2e4. \uadf8\ub9ac\uace0 \uc591\uc131\uc790-\ud0c4\uc18c \uc0b0\ub780\uc740 \uc5b4\ub290 \uc815\ub3c4 \ud070 \uc0b0\ub780 \uac01\ub3c4\uc5d0\uc11c \ucda9\ubd84\ud788 \uc791\uc740 \uc0b0\ub780\ub2e8\uba74\uc801\uc744 \uac00\uc9c0\uba70, \uac01\uac01\uc758 \uc0b0\ub780 \uc0ac\uac74\uc774 \ub2e4\ub978 \uc0b0\ub780 \uc0ac\uac74\uc5d0 \uc601\ud5a5\uc744 \ubc1b\uc9c0 \uc54a\ub294 \ub3c5\ub9bd \uc0ac\uac74\uc774\ub77c\uace0 \ubcf8\ub2e4\uba74 \uc660\uc9c0 \ud478\uc544\uc1a1Poisson \ud1b5\uacc4\ub97c \uc0ac\uc6a9\ud558\uc5ec Var<\/mtext>(<\/mo>L<\/mi>)<\/mo>=<\/mo>L<\/mi><\/mrow>\\text{Var}(L)=L<\/annotation><\/semantics><\/math>, Var<\/mtext>(<\/mo>R<\/mi>)<\/mo>=<\/mo>R<\/mi><\/mrow>\\text{Var}(R)=R<\/annotation><\/semantics><\/math>\uc774\ub77c\uace0 \ud560 \uc218 \uc788\uc744 \uac83 \uac19\ub2e4. \uc774\ub54c \ud45c\uc900\uc801\uc778 \uc624\ucc28 \uc804\ud30c\ub97c \uc801\uc6a9\ud558\uba74<\/p>\n\n\n\n
(<\/mo>d<\/mi>\u03b5<\/mi>)<\/mo>2<\/mn><\/msup>=<\/mo>(<\/mo>\u2202<\/mi>\u03b5<\/mi><\/mrow>\u2202<\/mi>L<\/mi><\/mrow><\/mfrac>)<\/mo><\/mrow>2<\/mn><\/msup>(<\/mo>d<\/mi>L<\/mi>)<\/mo>2<\/mn><\/msup>+<\/mo>(<\/mo>\u2202<\/mi>\u03b5<\/mi><\/mrow>\u2202<\/mi>R<\/mi><\/mrow><\/mfrac>)<\/mo><\/mrow>2<\/mn><\/msup>(<\/mo>d<\/mi>R<\/mi>)<\/mo>2<\/mn><\/msup><\/mrow>(d\\varepsilon)^2 = \\left( \\frac{\\partial \\varepsilon}{\\partial L} \\right)^2 (dL)^2 + \\left( \\frac{\\partial \\varepsilon}{\\partial R} \\right)^2 (dR)^2<\/annotation><\/semantics><\/math><\/div>\n\n\n\n

\uc774\ub2e4. L<\/mi>L<\/annotation><\/semantics><\/math>\uacfc R<\/mi>R<\/annotation><\/semantics><\/math>\uc758 \uce21\uc815\uc774 \ub3c5\ub9bd\uc774\ub77c\uace0 \uac00\uc815\ud558\uc5ec \uacf5\ubd84\uc0b0 \ud56d\uc740 \uc5c6\ub2e4. \ud3b8\ubbf8\ubd84\uc744 \uacc4\uc0b0\ud558\uba74<\/p>\n\n\n\n
\u2202<\/mi>\u03b5<\/mi><\/mrow>\u2202<\/mi>L<\/mi><\/mrow><\/mfrac>=<\/mo>2<\/mn>R<\/mi><\/mrow>(<\/mo>L<\/mi>+<\/mo>R<\/mi>)<\/mo>2<\/mn><\/msup><\/mrow><\/mfrac>,<\/mo><\/mrow>\\frac{\\partial\\varepsilon}{\\partial L} = \\frac{2R}{(L+R)^2},<\/annotation><\/semantics><\/math><\/div>\n\n\n\n
\u2202<\/mi>\u03b5<\/mi><\/mrow>\u2202<\/mi>R<\/mi><\/mrow><\/mfrac>=<\/mo>\u2212<\/mo>2<\/mn>L<\/mi><\/mrow>(<\/mo>L<\/mi>+<\/mo>R<\/mi>)<\/mo>2<\/mn><\/msup><\/mrow><\/mfrac><\/mrow>\\frac{\\partial\\varepsilon}{\\partial R} = -\\frac{2L}{(L+R)^2}<\/annotation><\/semantics><\/math><\/div>\n\n\n\n

\uc774\uace0, (<\/mo>d<\/mi>L<\/mi>)<\/mo>2<\/mn><\/msup>=<\/mo>L<\/mi><\/mrow>(dL)^2=L<\/annotation><\/semantics><\/math>, (<\/mo>d<\/mi>R<\/mi>)<\/mo>2<\/mn><\/msup>=<\/mo>R<\/mi><\/mrow>(dR)^2 = R<\/annotation><\/semantics><\/math>\uc774\ubbc0\ub85c,<\/p>\n\n\n\n
(<\/mo>d<\/mi>\u03b5<\/mi>)<\/mo>2<\/mn><\/msup>=<\/mo>4<\/mn>R<\/mi>2<\/mn><\/msup>L<\/mi><\/mrow>(<\/mo>L<\/mi>+<\/mo>R<\/mi>)<\/mo>4<\/mn><\/msup><\/mrow><\/mfrac>+<\/mo>4<\/mn>L<\/mi>2<\/mn><\/msup>R<\/mi><\/mrow>(<\/mo>L<\/mi>+<\/mo>R<\/mi>)<\/mo>4<\/mn><\/msup><\/mrow><\/mfrac>=<\/mo>4<\/mn>L<\/mi>R<\/mi>(<\/mo>L<\/mi>+<\/mo>R<\/mi>)<\/mo><\/mrow>(<\/mo>L<\/mi>+<\/mo>R<\/mi>)<\/mo>4<\/mn><\/msup><\/mrow><\/mfrac>=<\/mo>4<\/mn>L<\/mi>R<\/mi><\/mrow>(<\/mo>L<\/mi>+<\/mo>R<\/mi>)<\/mo>3<\/mn><\/msup><\/mrow><\/mfrac>,<\/mo><\/mrow>(d\\varepsilon)^2 = \\frac{4R^2L}{(L+R)^4} + \\frac{4L^2R}{(L+R)^4} = \\frac{4LR(L+R)}{(L+R)^4} = \\frac{4LR}{(L+R)^3},<\/annotation><\/semantics><\/math><\/div>\n\n\n\n
d<\/mi>\u03b5<\/mi>=<\/mo>2<\/mn>L<\/mi>R<\/mi><\/mrow>(<\/mo>L<\/mi>+<\/mo>R<\/mi>)<\/mo>3<\/mn><\/msup><\/mrow><\/mfrac><\/msqrt><\/mrow>d\\varepsilon = 2\\sqrt{\\frac{LR}{(L+R)^3}}<\/annotation><\/semantics><\/math><\/div>\n\n\n\n

\ub85c \ucd5c\uc885 \uacb0\uacfc\ub97c \uc5bb\uc744 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n

\uc758\ubb38: L<\/mi>L<\/annotation><\/semantics><\/math>\uacfc R<\/mi>R<\/annotation><\/semantics><\/math>\uc740 \ub3c5\ub9bd\uc778\uac00<\/h2>\n\n\n\n

\uc5ec\uae30\uc11c \ub098\ub294 \uc5b4\ub5a4 \uc0dd\uac01\uc774 \ub4e4\uc5c8\ub0d0\uba74, \uc815\ub9d0\ub85c L<\/mi>L<\/annotation><\/semantics><\/math>\uacfc R<\/mi>R<\/annotation><\/semantics><\/math>\uc774 \ub3c5\ub9bd\uc774\uace0 \uacf5\ubd84\uc0b0 \ud56d\uc774 \uc5c6\ub290\ub0d0\ub294 \uac83\uc774\ub2e4. \uc608\ub97c \ub4e4\uc5b4 \uc591\uc131\uc790-\ud0c4\uc18c \uc0b0\ub780\uc740 spin-orbit coupling\uc5d0 \uc758\ud574\uc11c \ube44\ub300\uce6d\uc801\uc778 \uc0b0\ub780\uc774 \uc0dd\uae30\uc9c0\ub9cc, \ub3d9\uc77c\ud55c \uc0b0\ub780\uac01 \ubc94\uc704 [<\/mo>\u03b8<\/mi>,<\/mo>\u03b8<\/mi>+<\/mo>d<\/mi>\u03b8<\/mi>]<\/mo><\/mrow>[\\theta, \\theta+d\\theta]<\/annotation><\/semantics><\/math>\uc758 \uc0b0\ub780\ub2e8\uba74\uc801\uc740 \ubcf4\uc874\ub418\uae30 \ub54c\ubb38\uc5d0 \uc774 \uc0b0\ub780\uac01 \ubc94\uc704 \ub0b4\uc5d0\uc11c \uc591\uc131\uc790\uac00 \uac80\ucd9c\ub420 \ud655\ub960\uc740 \ube44\ub300\uce6d\uc131\uacfc \uc0c1\uad00\uc5c6\uc774 \ubcc0\ud558\uc9c0 \uc54a\ub294\ub2e4. \uc2e4\ud5d8\uc5d0\uc11c \uc591\uc131\uc790\uac00 \uc67c\ucabd\uc5d0\uc11c \ubc1c\uacac\ub418\uc9c0 \uc54a\uc558\ub2e4\uba74, \uadf8\ub9cc\ud07c \uc624\ub978\ucabd\uc5d0\uc11c \ubc1c\uacac\ub420 \ud655\ub960\uc774 \ucee4\uc9c4\ub2e4. \uadf8\ub807\ub2e4\uba74 S<\/mi>\u2261<\/mo>L<\/mi>+<\/mo>R<\/mi><\/mrow>S\\equiv L+R<\/annotation><\/semantics><\/math>\uc774\ub77c\ub294 \ubb3c\ub9ac\ub7c9\uc744 \ubcf4\uc874\ub41c\ub2e4\uace0 \ubcf4\uace0, L<\/mi>L<\/annotation><\/semantics><\/math>\uacfc R<\/mi>R<\/annotation><\/semantics><\/math>\uc774 \uc74c\uc758 \uc0c1\uad00\uad00\uacc4\ub97c \ubcf4\uc5ec\uc57c \ud558\ubbc0\ub85c \uc624\ucc28 \uc804\ud30c\uc5d0 \uacf5\ubd84\uc0b0 \ud56d\uc744 \ub123\uc5b4\uc57c \uc633\uc740 \uacb0\uacfc\ub97c \uc5bb\uc744 \uc218 \uc788\ub294 \uac83\uc774 \uc544\ub2cc\uac00 \ud558\ub294 \uc9c8\ubb38\uc774 \uc0dd\uae34\ub2e4.<\/p>\n\n\n\n

\uc774\ud56d \ubd84\ud3ec \ubaa8\ub378<\/h1>\n\n\n\n

\uc774\ud56d \ubd84\ud3ec\uc758 \ub3c4\uc785<\/h2>\n\n\n\n

\uc785\uc790\uc5d0\uac8c \uc88c\ub0d0 \uc6b0\ub0d0 (\uc815\uce58\uc801\uc778 \uc758\ub3c4 \uc5c6\uc74c) \ub450 \uac00\uc9c0 \uc120\ud0dd\uc9c0\ub9cc \uc918\ubcf4\uc790. \uc774 \uacbd\uc6b0 \uc0b0\ub780 \uc774\ubca4\ud2b8\ub294 \uac01\uac01 \ub3c5\ub9bd\uc801\uc73c\ub85c \ubc1c\uc0dd\ud558\uc9c0\ub9cc, \ud55c \uc774\ubca4\ud2b8 \ub0b4\uc5d0\uc11c \uc67c\ucabd\uc73c\ub85c \uac08\uc9c0 \uc624\ub978\ucabd\uc73c\ub85c \uac08\uc9c0\ub9cc \ud655\ub960\uc801\uc73c\ub85c \uacb0\uc815\ub418\uace0, \ucd1d \uac1c\uc218 S<\/mi>=<\/mo>L<\/mi>+<\/mo>R<\/mi><\/mrow>S=L+R<\/annotation><\/semantics><\/math>\uc740 \uace0\uc815\ub41c \uc0c1\uc218\uc774\ub2e4. \uc989 S<\/mi>S<\/annotation><\/semantics><\/math>\uac1c\uc758 \uc785\uc790 \uac01\uac01\uc774 \ud655\ub960 p<\/mi>p<\/annotation><\/semantics><\/math>\ub85c \uc67c\ucabd, (<\/mo>1<\/mn>\u2212<\/mo>p<\/mi>)<\/mo><\/mrow>(1-p)<\/annotation><\/semantics><\/math>\ub85c \uc624\ub978\ucabd\uc5d0 \uac80\ucd9c\ub41c\ub2e4\uace0 \ud558\uba74<\/p>\n\n\n\n
L<\/mi>\u223c<\/mo>Binomial<\/mtext>(<\/mo>S<\/mi>,<\/mo>p<\/mi>)<\/mo><\/mrow>L \\sim \\text{Binomial}(S, p)<\/annotation><\/semantics><\/math><\/div>\n\n\n\n

\uc774\uba70, \ud655\ub960\ubcc0\uc218 L<\/mi>L<\/annotation><\/semantics><\/math>\uc774 \uc815\ud574\uc9c0\uba74 R<\/mi>R<\/annotation><\/semantics><\/math>\uc740 R<\/mi>=<\/mo>S<\/mi>\u2212<\/mo>L<\/mi><\/mrow>R=S-L<\/annotation><\/semantics><\/math>\ub85c \uc644\uc804\ud788 \uacb0\uc815\ub41c\ub2e4. \uc5ec\uae30\uc11c p<\/mi>=<\/mo>1<\/mn>\u2212<\/mo>\u03b5<\/mi><\/mrow>2<\/mn><\/mfrac><\/mrow>p=\\frac{1-\\varepsilon}{2}<\/annotation><\/semantics><\/math>\uc774\ub2e4. \uc774\ud56d \ubd84\ud3ec\uc758 \ud3c9\uade0, \ubd84\uc0b0, \ud45c\uc900\ud3b8\ucc28\ub294 \uace0\ub4f1\ud559\uad50 \ud655\ud1b5 \uad50\uacfc\uc11c\uc5d0\ub3c4 \uc798 \ub098\uc640\uc788\ub2e4. \ubd84\uc0b0\uc744 \uad6c\ud574\ubcf4\uba74<\/p>\n\n\n\n
<\/mtext>Var<\/mi><\/mrow>(<\/mo>L<\/mi>)<\/mo>=<\/mo><\/mtext>Var<\/mi><\/mrow>(<\/mo>R<\/mi>)<\/mo>=<\/mo>S<\/mi>\u22c5<\/mo>p<\/mi>(<\/mo>1<\/mn>\u2212<\/mo>p<\/mi>)<\/mo>=<\/mo>L<\/mi>R<\/mi><\/mrow>S<\/mi><\/mfrac>=<\/mo>L<\/mi>R<\/mi><\/mrow>L<\/mi>+<\/mo>R<\/mi><\/mrow><\/mfrac><\/mrow>\\mathrm{Var}(L) = \\mathrm{Var}(R) = S \\cdot p(1\u2212p) = \\frac{LR}{S} = \\frac{LR}{L+R}<\/annotation><\/semantics><\/math><\/div>\n\n\n\n

\uc774\ub2e4. \uacf5\ubd84\uc0b0\uc740? \uc5ec\ub7ec \uacf5\uc2dd\uc73c\ub85c\ubd80\ud130 \uc5ec\ub7ec\uac00\uc9c0 \ubc29\ubc95\uc73c\ub85c \uc5bb\uc744 \uc218 \uc788\ub294\ub370, Var<\/mtext>(<\/mo>X<\/mi>+<\/mo>Y<\/mi>)<\/mo>=<\/mo>Var<\/mtext>(<\/mo>X<\/mi>)<\/mo>+<\/mo>Var<\/mtext>(<\/mo>Y<\/mi>)<\/mo>+<\/mo>2<\/mn>Cov<\/mtext>(<\/mo>X<\/mi>,<\/mo>Y<\/mi>)<\/mo><\/mrow>\\text{Var}( X + Y )=\\text{Var}(X)+\\text{Var}(Y)+2\\text{Cov}(X,Y)<\/annotation><\/semantics><\/math>\ub97c \uc368\ubcf4\uba74<\/p>\n\n\n\n
<\/mtext>Cov<\/mi><\/mrow>(<\/mo>L<\/mi>,<\/mo>R<\/mi>)<\/mo>=<\/mo>\u2212<\/mo><\/mtext>Var<\/mi><\/mrow>(<\/mo>L<\/mi>)<\/mo>=<\/mo>\u2212<\/mo>L<\/mi>R<\/mi><\/mrow>L<\/mi>+<\/mo>R<\/mi><\/mrow><\/mfrac><\/mrow>\\mathrm{Cov}(L, R) = \u2212\\mathrm{Var}(L) = \u2212\\frac{LR}{L+R}<\/annotation><\/semantics><\/math><\/div>\n\n\n\n

\uc784\uc744 \uc54c \uc218 \uc788\ub2e4. \uacf5\ubd84\uc0b0 \uacb0\uacfc\ub85c\ubd80\ud130 L<\/mi>L<\/annotation><\/semantics><\/math>\uacfc R<\/mi>R<\/annotation><\/semantics><\/math>\uc774 \uc644\uc804\ud55c \uc74c\uc758 \uc0c1\uad00\uad00\uacc4(r<\/mi>=<\/mo>\u2212<\/mo>1<\/mn><\/mrow>r=-1<\/annotation><\/semantics><\/math>)\uc778 \uac83\ub3c4 \ud655\uc778 \uac00\ub2a5\ud558\ub2e4. (R<\/mi>=<\/mo>S<\/mi>\u2212<\/mo>L<\/mi><\/mrow>R=S-L<\/annotation><\/semantics><\/math>\uc774\ubbc0\ub85c \ub2f9\uc5f0)<\/p>\n\n\n\n

\uc624\ucc28 \uc804\ud30c \uc7ac\uacc4\uc0b0<\/h2>\n\n\n\n

\uc774\uc81c \uacf5\ubd84\uc0b0 \ud56d\uc744 \ud3ec\ud568\ud55c \uc0c8\ub85c\uc6b4 \uc624\ucc28 \uc804\ud30c\uc2dd<\/p>\n\n\n\n

(<\/mo>d<\/mi>\u03b5<\/mi>)<\/mo>2<\/mn><\/msup>=<\/mo>(<\/mo>\u2202<\/mi>\u03b5<\/mi><\/mrow>\u2202<\/mi>L<\/mi><\/mrow><\/mfrac>)<\/mo><\/mrow>2<\/mn><\/msup>Var<\/mtext>(<\/mo>L<\/mi>)<\/mo>+<\/mo>(<\/mo>\u2202<\/mi>\u03b5<\/mi><\/mrow>\u2202<\/mi>R<\/mi><\/mrow><\/mfrac>)<\/mo><\/mrow>2<\/mn><\/msup>Var<\/mtext>(<\/mo>R<\/mi>)<\/mo>+<\/mo>2<\/mn>\u2202<\/mi>\u03b5<\/mi><\/mrow>\u2202<\/mi>L<\/mi><\/mrow><\/mfrac>\u2202<\/mi>\u03b5<\/mi><\/mrow>\u2202<\/mi>R<\/mi><\/mrow><\/mfrac>Cov<\/mtext>(<\/mo>L<\/mi>,<\/mo>R<\/mi>)<\/mo><\/mrow>(d\\varepsilon)^2 = \\left(\\frac{\\partial\\varepsilon}{\\partial L} \\right)^2\\text{Var}(L) + \\left(\\frac{\\partial\\varepsilon}{\\partial R}\\right)^2\\text{Var}(R) + 2 \\frac{\\partial\\varepsilon}{\\partial L} \\frac{\\partial \\varepsilon}{\\partial R} \\text{Cov}(L, R)<\/annotation><\/semantics><\/math><\/div>\n\n\n\n

\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub2e4\uc2dc \ube44\ub300\uce6d\ub3c4\uc758 \uc624\ucc28\ub97c \uacc4\uc0b0\ud574\ubcf4\uc790. \ub300\uc785\ud558\uc5ec \uc815\ub9ac\ud558\uba74<\/p>\n\n\n\n

d<\/mi>\u03b5<\/mi>=<\/mo>2<\/mn>L<\/mi>R<\/mi><\/mrow>(<\/mo>L<\/mi>+<\/mo>R<\/mi>)<\/mo>3<\/mn><\/msup><\/mrow><\/mfrac><\/msqrt><\/mrow>d\\varepsilon = 2 \\sqrt{\\frac{LR}{(L+R)^3}}<\/annotation><\/semantics><\/math><\/div>\n\n\n\n

\uc774\ub2e4. ??? \uc65c \ub3c5\ub9bd \ud478\uc544\uc1a1 \ub54c\ub791 \uacb0\uacfc\uac00 \uac19\uc740\uc9c0? \ud639\uc2dc \ubab0\ub77c\uc11c \u03b5<\/mi>=<\/mo>L<\/mi>U<\/mi><\/mrow><\/msub>\u22c5<\/mo>R<\/mi>D<\/mi><\/mrow><\/msub><\/mrow><\/msqrt>\u2212<\/mo>R<\/mi>U<\/mi><\/mrow><\/msub>\u22c5<\/mo>L<\/mi>D<\/mi><\/mrow><\/msub><\/mrow><\/msqrt><\/mrow>L<\/mi>U<\/mi><\/mrow><\/msub>\u22c5<\/mo>R<\/mi>D<\/mi><\/mrow><\/msub><\/mrow><\/msqrt>+<\/mo>R<\/mi>U<\/mi><\/mrow><\/msub>\u22c5<\/mo>L<\/mi>D<\/mi><\/mrow><\/msub><\/mrow><\/msqrt><\/mrow><\/mfrac><\/mrow>\\varepsilon = \\frac{\\sqrt{L_\\mathrm{U} \\cdot R_\\mathrm{D}} – \\sqrt{R_\\mathrm{U} \\cdot L_\\mathrm{D}}}{\\sqrt{L_\\mathrm{U} \\cdot R_\\mathrm{D}} + \\sqrt{R_\\mathrm{U} \\cdot L_\\mathrm{D}}}<\/annotation><\/semantics><\/math>\ub85c \uc815\uc758\ub418\ub294 \uad50\ucc28\ube44 \ube44\ub300\uce6d\uc131cross-ratio asymmetry\uc73c\ub85c\ub3c4 \ud655\uc778\ud574\ubd24\ub294\ub370, \uc5ed\uc2dc d<\/mi>\u03b5<\/mi><\/mrow>d\\varepsilon<\/annotation><\/semantics><\/math> \uacc4\uc0b0 \uacb0\uacfc\uac00 \uac19\uc558\ub2e4.<\/p>\n\n\n\n

\uc65c \uac19\uc740 \uacb0\uacfc\uac00 \ub098\uc624\ub294\uac00?<\/h2>\n\n\n\n

\ubd84\uc0b0\uc740 \ud478\uc544\uc1a1 \ub54c(Var<\/mtext>(<\/mo>L<\/mi>)<\/mo>=<\/mo>L<\/mi><\/mrow>\\text{Var}(L)=L<\/annotation><\/semantics><\/math>)\ubcf4\ub2e4 \uc774\ud56d \ubd84\ud3ec \ub54c(Var<\/mtext>(<\/mo>L<\/mi>)<\/mo>=<\/mo>L<\/mi>\u22c5<\/mo>R<\/mi>L<\/mi>+<\/mo>R<\/mi><\/mrow><\/mfrac><<\/mo>L<\/mi><\/mrow>\\text{Var}(L)=L\\cdot \\frac{R}{L+R} <L<\/annotation><\/semantics><\/math>)\uac00 \ud655\uc2e4\ud788 \uc791\uc544\uc84c\ub2e4. \uadf8\ub807\ub2e4\uba74 \uacf5\ubd84\uc0b0 \ud56d\uc774 “\uc774\ud56d \ubd84\ud3ec \ud574\uc11d”\uc5d0\uc11c \uc624\ucc28\ub97c \ub354 \ud0a4\uc6cc\uc11c \ubd84\uc0b0\uc774 \uc791\uc544\uc9c4 \ud6a8\uacfc\ub97c \uc815\ud655\ud788 \uc0c1\uc1c4\ud588\ub2e4\ub294 \ub73b\uc774\ub2e4. \uc774\uc5d0 \ub300\ud574 Claude\uc758 \uc758\uacac\uc744 \ubb3c\uc5c8\ub294\ub370, \uc774\ub7f0\uc800\ub7f0 \uc774\uc720\ub97c \ub098\uc5f4\ud588\uc73c\ub098 \uadf8\uc911 \uadf8\ub098\ub9c8 \ub0a9\ub4dd\uc774 \uac00\ub294 \uac83\uc740 \u03b5<\/mi>\\varepsilon<\/annotation><\/semantics><\/math>\uc758 \uc815\uc758\uac00 L<\/mi>L<\/annotation><\/semantics><\/math>, R<\/mi>R<\/annotation><\/semantics><\/math>\uc744 \uac19\uc740 \ube44\uc728\ub85c \uc2a4\ucf00\uc77c\ud574\ub3c4 \uac12\uc774 \ubcc0\ud558\uc9c0 \uc54a\ub294 0\ucc28 \ub3d9\ucc28\ud568\uc218\ub77c\uc11c S<\/mi>=<\/mo>L<\/mi>+<\/mo>R<\/mi><\/mrow>S=L+R<\/annotation><\/semantics><\/math> \ubc29\ud5a5\uc73c\ub85c \uc804\uccb4\uac00 \uac19\uc774 \ub298\uac70\ub098 \uc8fc\ub294 \ubcc0\ub3d9\uc774 \u03b5<\/mi>\\varepsilon<\/annotation><\/semantics><\/math>\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5\uc744 \uad6c\uc870\uc801\uc73c\ub85c \uc5b5\uc81c\ud558\uae30 \ub54c\ubb38\uc774\ub77c\uace0 \ud55c\ub2e4\ub294\ub370… \uc644\uc804\ud788 \uc774\ud574\ud558\uc9c0\ub294 \ubabb\ud588\ub2e4.<\/p>\n\n\n\n

\uacb0\ub860<\/h1>\n\n\n\n

\ube44\ub300\uce6d\ub3c4\uc758 \uc88c\/\uc6b0 \uc785\uc790 \uac1c\uc218\ub97c \ub3c5\ub9bd \ud478\uc544\uc1a1\uc73c\ub85c \ud574\uc11d\ud558\ub4e0, \uc774\ud56d \ubd84\ud3ec\ub85c \ud574\uc11d\ud558\ub4e0 \uc624\ucc28 \uc804\ud30c\ub294 \ub3d9\uc77c\ud55c \uacb0\uacfc\uac00 \ub098\uc628\ub2e4. \ub2e4\ub9cc, \uac1c\ubcc4 L<\/mi>L<\/annotation><\/semantics><\/math>, R<\/mi>R<\/annotation><\/semantics><\/math>\uc758 \uc624\ucc28(d<\/mi>L<\/mi><\/mrow>dL<\/annotation><\/semantics><\/math>, d<\/mi>R<\/mi><\/mrow>dR<\/annotation><\/semantics><\/math>)\ub97c \ubcc4\ub3c4\ub85c \uc0ac\uc6a9\ud558\ub294 \uacc4\uc0b0\uc744 \ud558\ub294 \uacbd\uc6b0\uc5d0\ub294 d<\/mi>L<\/mi>=<\/mo>d<\/mi>R<\/mi>=<\/mo>L<\/mi>R<\/mi>\/<\/mi>(<\/mo>L<\/mi>+<\/mo>R<\/mi>)<\/mo><\/mrow><\/msqrt><\/mrow>dL=dR=\\sqrt{LR\/(L+R)}<\/annotation><\/semantics><\/math>\ub97c \uc4f0\ub294 \uac83\uc774 \ub9de\uc544 \ubcf4\uc774\uace0 \uc0c1\uad00\uacc4\uc218 \u2212<\/mo>1<\/mn><\/mrow>-1<\/annotation><\/semantics><\/math>\uc744 \uace0\ub824\ud574\uc57c \ud560 \uac83 \uac19\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"

Motivation \ube44\ub300\uce6d\ub3c4\uacfc \ube44\ub300\uce6d\ub3c4\uc758 \ud1b5\uacc4\uc801 \uce21\uc815\uc624\ucc28 \ud575\ubb3c\ub9ac, \uc785\uc790\ubb3c\ub9ac\uc5d0\uc11c\ub294 \uc5b4\ub5a4 \ubb3c\ub9ac\ud604\uc0c1\uc758 \ube44\ub300\uce6d\ub3c4\ub97c \uce21\uc815\ud558\ub294 \uacbd\uc6b0\uac00 \ub9ce\ub2e4. \ubcf4\ud1b5\uc740 \uc785\uc790\uac80\ucd9c\uae30\uc5d0\uc11c \uac80\ucd9c\ub418\ub294 \uc785\uc790\uc758 \uc6b4\ub3d9\ub7c9\uc758 \ubc29\ud5a5\uc5d0 \ub530\ub77c \uc67c\ucabd(left)\uacfc \uc624\ub978\ucabd(right)\uc73c\ub85c \uad6c\ubd84\ud558\uace4 \ud55c\ub2e4. \uc608\ub97c \ub4e4\uba74 \uc591\uc131\uc790\uac00 \ud0c4\uc18c-12 \ud575\uacfc \uac15\ud55c \uc0c1\ud638\uc791\uc6a9\uc5d0 \uc758\ud574 \ud0c4\uc131(\ud639\uc740 \ube44\ud0c4\uc131) \uc0b0\ub780\ub418\ub294 \uacbd\uc6b0\uac00 \uc788\ub2e4. \uac15\ud55c \uc0c1\ud638\uc791\uc6a9\uc740 \uc0b0\ub780 \ubc29\ud5a5\uc5d0 \uce58\uc6b0\uce68\uc774 \uc5c6\uc73c\ub098, \uc591\uc131\uc790\uc758 \uc2a4\ud540\uc744 \uace0\ub824\ud558\uba74 \uc804\uc790\uae30\uc801 \uc0c1\ud638\uc791\uc6a9\uc5d0 \uc758\ud574 \ube44\ub300\uce6d\uc801\uc778 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[107,108,109],"class_list":["post-1126","post","type-post","status-publish","format-standard","hentry","category-math","tag-107","tag-108","tag-109"],"_links":{"self":[{"href":"https:\/\/hyandmj.asuscomm.com\/hblog\/index.php?rest_route=\/wp\/v2\/posts\/1126","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hyandmj.asuscomm.com\/hblog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hyandmj.asuscomm.com\/hblog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hyandmj.asuscomm.com\/hblog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hyandmj.asuscomm.com\/hblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1126"}],"version-history":[{"count":10,"href":"https:\/\/hyandmj.asuscomm.com\/hblog\/index.php?rest_route=\/wp\/v2\/posts\/1126\/revisions"}],"predecessor-version":[{"id":1137,"href":"https:\/\/hyandmj.asuscomm.com\/hblog\/index.php?rest_route=\/wp\/v2\/posts\/1126\/revisions\/1137"}],"wp:attachment":[{"href":"https:\/\/hyandmj.asuscomm.com\/hblog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1126"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hyandmj.asuscomm.com\/hblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1126"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hyandmj.asuscomm.com\/hblog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1126"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}