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DW
Aug31-04, 03:39 PM
<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>Warren has written a QFT, it\'s free\nhttp://insti.physics.sunysb.edu/%7Esiegel/Fields2.pdf\n\nbut I found his approach very difficult to follow his approach.\nI often get lost when reading his book. Can anyone give a "big picture"\nof his approach and some advices about reading this book?\n\nThanks!\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">&nbsp;&nbsp;View this Usenet post in original ASCII form </a></div><P></jabberwocky>Warren has written a QFT, it's free
http://insti.physics.sunysb.edu/%7Esiegel/Fields2.pdf

but I found his approach very difficult to follow his approach.
I often get lost when reading his book. Can anyone give a "big picture"
of his approach and some advices about reading this book?

Thanks!

Danny Ross Lunsford
Sep1-04, 04:43 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>\nDW &lt;an_eyas@yahoo.com.cn&gt; wrote in message news:&lt;AkLYc.2367\\$RP5.821@fe51.usenetserver.com&gt;. ..\n&gt; Warren has written a QFT, it\'s free\n&gt; http://insti.physics.sunysb.edu/%7Esiegel/Fields2.pdf\n&gt;\n&gt; but I found his approach very difficult to follow his approach.\n&gt; I often get lost when reading his book. Can anyone give a "big picture"\n&gt; of his approach and some advices about reading this book?\n&gt;\n&gt; Thanks!\n\nAlthough this looks like a very comprehensive book, it may be better\nfor a beginner or intermediate student to start with something like\nRyder, "Quantum Field Theory". Whatever book you pick, you should be\ncompletely at home in special relativity and Schroedinger quantum\nmechanics first, and go through an elementary treatment of the Dirac\nequation and its application to the hydrogen spectrum and tunneling\n(Klein paradox). You should also realize that QFT is not a complete\ntheory like gravity or NRQM. A lot of it has to be swallowed with a\ngrain of cyanide.\n\nBut thanks for pointing out this nice work of Siegel!\n\n-drl\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">&nbsp;&nbsp;View this Usenet post in original ASCII form </a></div><P></jabberwocky>DW <an_eyas@yahoo.com.cn> wrote in message news:<AkLYc.2367$RP5.821@fe51.usenetserver.com>...
> Warren has written a QFT, it's free
> http://insti.physics.sunysb.edu/%7Esiegel/Fields2.pdf
>
> but I found his approach very difficult to follow his approach.
> I often get lost when reading his book. Can anyone give a "big picture"
> of his approach and some advices about reading this book?
>
> Thanks!

Although this looks like a very comprehensive book, it may be better
for a beginner or intermediate student to start with something like
Ryder, "Quantum Field Theory". Whatever book you pick, you should be
completely at home in special relativity and Schroedinger quantum
mechanics first, and go through an elementary treatment of the Dirac
equation and its application to the hydrogen spectrum and tunneling
(Klein paradox). You should also realize that QFT is not a complete
theory like gravity or NRQM. A lot of it has to be swallowed with a
grain of cyanide.

But thanks for pointing out this nice work of Siegel!

-drl

Brian J Flanagan
Sep2-04, 04:44 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(Danny Ross Lunsford) wrote:\n&gt; DW wrote:\n\n&gt; Although this looks like a very comprehensive book, it may be better\n&gt; for a beginner or intermediate student to start with something like\n&gt; Ryder, "Quantum Field Theory".\n\nI like Ryder also. For the math, check out \'Analysis, Manifolds, &\nPhysics\' by Choquet-Bruhat et al. and/or Mathematics of Classical &\nQuantum Physics,\' by Byron & Fuller.\n\nDeWitt\'s recent \'Global Approach to QFT\' is also very nice, with a\nthoroughly modern approach and a pleasant pedagogical style -- though\nsome of it may be a bit abstract for the beginner.\n\nFor a good sketch of the history, see \'Inward Bound,\' by A. Pais.\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">&nbsp;&nbsp;View this Usenet post in original ASCII form </a></div><P></jabberwocky>(Danny Ross Lunsford) wrote:
> DW wrote:

> Although this looks like a very comprehensive book, it may be better
> for a beginner or intermediate student to start with something like
> Ryder, "Quantum Field Theory".

I like Ryder also. For the math, check out 'Analysis, Manifolds, &
Physics' by Choquet-Bruhat et al. and/or Mathematics of Classical &
Quantum Physics,' by Byron & Fuller.

DeWitt's recent 'Global Approach to QFT' is also very nice, with a
thoroughly modern approach and a pleasant pedagogical style -- though
some of it may be a bit abstract for the beginner.

For a good sketch of the history, see 'Inward Bound,' by A. Pais.

humanino
Sep4-04, 03:05 AM
By the way, this lecture on Field theory (not just QFT : a large part is classical) is totally amazing ! This could have made a lot of money, but Warren Siegel decided to let it freely available. This is remarquable.