alistair
Jun17-04, 04:19 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>\nALFRED EINSTEAD said in reply to ALISTAIR:\n\nThe closest anyone\'s ever gotten to quantizing non-linear theories\nis via a perturbation-theoretic quasi-free-field type approximation\n\nALISTAIR writes:\n\nIs perturbation theory necessary - are there some quantizations that\ncan only be approximately right - or does the need to use perturbation\ntheory mean that\nthere is some fundamental physics that has not yet been discovered or\ntaken into account when the quantization of a field is attempted?\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>ALFRED EINSTEAD said in reply to ALISTAIR:
The closest anyone's ever gotten to quantizing non-linear theories
is via a perturbation-theoretic quasi-free-field type approximation
ALISTAIR writes:
Is perturbation theory necessary - are there some quantizations that
can only be approximately right - or does the need to use perturbation
theory mean that
there is some fundamental physics that has not yet been discovered or
taken into account when the quantization of a field is attempted?
The closest anyone's ever gotten to quantizing non-linear theories
is via a perturbation-theoretic quasi-free-field type approximation
ALISTAIR writes:
Is perturbation theory necessary - are there some quantizations that
can only be approximately right - or does the need to use perturbation
theory mean that
there is some fundamental physics that has not yet been discovered or
taken into account when the quantization of a field is attempted?