Urs Schreiber
Jun13-04, 04:15 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>"Urs Schreiber" <Urs.Schreiber@uni-essen.de> schrieb im Newsbeitrag\nnews:2iuionFrqg3lU1-100000@uni-berlin.de...\n> I have been looking at some papers by Koji Hashimoto, e.g. hep-th/0401043,\n> hep-th/0312260 concerning deformations of boundary states in order to\n> describe open string background field\n> (http://golem.ph.utexas.edu/string/archives/000381.html).\n\nA while ago Lubos has asked me concerning Pohlmeyer invariants:\n\n> If Pohlmeyer charges can be used to organize the standard stringy\nspectrum, how should I imagine their > eigenvalues and eigenvectors?\n\n(http://golem.ph.utexas.edu/string/archives/000300.html#c000862)\n\nNow that I have learned a little bit about boundary state formalism and\nthought about it for a while I think that I can partially answer this\nquestion:\n\nThe Pohlmeyer invariants should probably be best thought of as operators\nwhich send boundary states describing stacks of coincident bare Dp-branes to\na) distributed branes and b) branes with gauge fields turned on.\n\nEigenstates should hence be (generalized) "plane waves" of Dp-brane boundary\nstates, as well as their T-duals. For details about what I mean by that\nplease see the following SCT entry:\n\nhttp://golem.ph.utexas.edu/string/archives/000382.html .\n\nI think I got that right, but if I made a mistake please somebody let me\nknow.\n\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>"Urs Schreiber" <Urs.Schreiber@uni-essen.de> schrieb im Newsbeitrag
news:2iuionFrqg3lU1-100000@uni-berlin.de...
> I have been looking at some papers by Koji Hashimoto, e.g. http://www.arxiv.org/abs/hep-th/0401043,
> http://www.arxiv.org/abs/hep-th/0312260 concerning deformations of boundary states in order to
> describe open string background field
> (http://golem.ph.utexas.edu/string/archives/000381.html).
A while ago Lubos has asked me concerning Pohlmeyer invariants:
> If Pohlmeyer charges can be used to organize the standard stringy
spectrum, how should I imagine their > eigenvalues and eigenvectors?
(http://golem.ph.utexas.edu/string/archives/000300.html#c000862)
Now that I have learned a little bit about boundary state formalism and
thought about it for a while I think that I can partially answer this
question:
The Pohlmeyer invariants should probably be best thought of as operators
which send boundary states describing stacks of coincident bare Dp-branes to
a) distributed branes and b) branes with gauge fields turned on.
Eigenstates should hence be (generalized) "plane waves" of Dp-brane boundary
states, as well as their T-duals. For details about what I mean by that
please see the following SCT entry:
http://golem.ph.utexas.edu/string/archives/000382.html .
I think I got that right, but if I made a mistake please somebody let me
know.
news:2iuionFrqg3lU1-100000@uni-berlin.de...
> I have been looking at some papers by Koji Hashimoto, e.g. http://www.arxiv.org/abs/hep-th/0401043,
> http://www.arxiv.org/abs/hep-th/0312260 concerning deformations of boundary states in order to
> describe open string background field
> (http://golem.ph.utexas.edu/string/archives/000381.html).
A while ago Lubos has asked me concerning Pohlmeyer invariants:
> If Pohlmeyer charges can be used to organize the standard stringy
spectrum, how should I imagine their > eigenvalues and eigenvectors?
(http://golem.ph.utexas.edu/string/archives/000300.html#c000862)
Now that I have learned a little bit about boundary state formalism and
thought about it for a while I think that I can partially answer this
question:
The Pohlmeyer invariants should probably be best thought of as operators
which send boundary states describing stacks of coincident bare Dp-branes to
a) distributed branes and b) branes with gauge fields turned on.
Eigenstates should hence be (generalized) "plane waves" of Dp-brane boundary
states, as well as their T-duals. For details about what I mean by that
please see the following SCT entry:
http://golem.ph.utexas.edu/string/archives/000382.html .
I think I got that right, but if I made a mistake please somebody let me
know.