Joan Estes
Sep19-04, 06:56 AM
<jabberwocky><div class="vbmenu_control"><a href="jabberwocky:;" onClick="newWindow=window.open('','usenetCode','toolbar=no, location=no,scrollbars=yes,resizable=yes,status=no ,width=650,height=400'); newWindow.document.write('<HTML><HEAD><TITLE>Usenet ASCII</TITLE></HEAD><BODY topmargin=0 leftmargin=0 BGCOLOR=#F1F1F1><table border=0 width=625><td bgcolor=midnightblue><font color=#F1F1F1>This Usenet message\'s original ASCII form: </font></td></tr><tr><td width=449><br><br><font face=courier><UL><PRE>\n\nJoan Estes <joanestes2000@yahoo.com> wrote\n\n> I have a question about a simple formula, given by Gawedzki:\n> <T_{zz} T_{\\bar w \\bar w}>\n> = - (\\pi c/ 12) \\partial_z\\partial_{\\bar z}\\delta^2(z-w) + ...\n\nStrangely enough, after a week\'s literature search, still the only\nauthor I could find who writes down a <T \\bar T> product is Gawedzki.\nPolchinski does note, in a footnote on p48 of his book, that such\nholomorphic-antiholomorphic correlators may have delta-function\ncontact terms, with the cryptic and mysterious comment that these "may\ndepend on definitions, so one must be careful".\n\nStill, while I can follow the axiomatic derivation of the above formula,\nI remain unable to compute it from a direct field theory\ncalculation. If anyone knows of any references that mention\nsuch T-T-bar correlators, I would be grateful.\n\nJ.E.\n\n</UL></PRE></font></td></tr></table></BODY><HTML>');"> <IMG SRC=/images/buttons/ip.gif BORDER=0 ALIGN=CENTER ALT="View this Usenet post in original ASCII form"> View this Usenet post in original ASCII form </a></div><P></jabberwocky>Joan Estes <joanestes2000@yahoo.com> wrote
> I have a question about a simple formula, given by Gawedzki:
> <T_{zz} T_{\bar w \bar w}>
> = - (\pi c/ 12) \partial_z\partial_{\bar z}\delta^2(z-w) + ...
Strangely enough, after a week's literature search, still the only
author I could find who writes down a <T \bar T> product is Gawedzki.
Polchinski does note, in a footnote on p48 of his book, that such
holomorphic-antiholomorphic correlators may have \delta-function
contact terms, with the cryptic and mysterious comment that these "may
depend on definitions, so one must be careful".
Still, while I can follow the axiomatic derivation of the above formula,
I remain unable to compute it from a direct field theory
calculation. If anyone knows of any references that mention
such T-T-bar correlators, I would be grateful.
J.E.
> I have a question about a simple formula, given by Gawedzki:
> <T_{zz} T_{\bar w \bar w}>
> = - (\pi c/ 12) \partial_z\partial_{\bar z}\delta^2(z-w) + ...
Strangely enough, after a week's literature search, still the only
author I could find who writes down a <T \bar T> product is Gawedzki.
Polchinski does note, in a footnote on p48 of his book, that such
holomorphic-antiholomorphic correlators may have \delta-function
contact terms, with the cryptic and mysterious comment that these "may
depend on definitions, so one must be careful".
Still, while I can follow the axiomatic derivation of the above formula,
I remain unable to compute it from a direct field theory
calculation. If anyone knows of any references that mention
such T-T-bar correlators, I would be grateful.
J.E.