<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0035-001X</journal-id>
<journal-title><![CDATA[Revista mexicana de física]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. fis.]]></abbrev-journal-title>
<issn>0035-001X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Física]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0035-001X2007001000024</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Dinámica de membranas superconductoras]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zelin]]></surname>
<given-names><![CDATA[Miguel-Pilar]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Instituto Politécnico Nacional Escuela Superior de Física y Matemáticas ]]></institution>
<addr-line><![CDATA[México D.F]]></addr-line>
<country>MÉXICO</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2007</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2007</year>
</pub-date>
<volume>53</volume>
<fpage>129</fpage>
<lpage>132</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2007001000024&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2007001000024&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2007001000024&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[En este trabajo se presenta una descripción geométrica para membranas superconductoras aplicada a ejemplos concretos. Se considera una acción general efectiva la cual incluye una clase general de objetos extendidos superconductores. Además de la descripción lagrangiana, se presenta una descripción hamiltoniana inspirada en el formalismo ADM de la relatividad general. Las descripciones son usadas considerando diversas configuraciones de paredes de dominio: esfera, pared infinita, cilindro y cuerda cerrada, en distintos espacios-tiempo de trasfondo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[In this work we present a geometrical description for superconducting membranes in concise examples. A general effective action is considered, which includes a general class of extended superconducting objects. Besides the Lagrangian description, a Hamiltonian description based on the ADM fashion of general relativity is considered. Both descriptions are used considering different domain walls configurations: sphere, infinite wall, cylinder and closed string, in several spacetime backgrounds.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Cuerdas]]></kwd>
<kwd lng="es"><![CDATA[membranas]]></kwd>
<kwd lng="es"><![CDATA[objetos relativistas superconductores]]></kwd>
<kwd lng="es"><![CDATA[defectos topológicos]]></kwd>
<kwd lng="es"><![CDATA[rayos cósmicos]]></kwd>
<kwd lng="en"><![CDATA[Strings]]></kwd>
<kwd lng="en"><![CDATA[branes]]></kwd>
<kwd lng="en"><![CDATA[relativistic superconducting objects]]></kwd>
<kwd lng="en"><![CDATA[topological defects]]></kwd>
<kwd lng="en"><![CDATA[cosmic rays]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="center"><font face="verdana" size="4"><b>Din&aacute;mica de membranas superconductoras</b></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2"><b>Zelin Miguel&#150;Pilar</b></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><i>Escuela Superior de F&iacute;sica y Matem&aacute;ticas del Instituto Polit&eacute;cnico Nacional, Edificio 9, Unidad Profesional Adolfo L&oacute;pez Mateos, Zacatenco, 07738 M&eacute;xico D.F., M&Eacute;XICO, e&#150;mail: <a href="mailto:zelin@esfm.ipn.mx" target="_blank">zelin@esfm.ipn.mx</a></i></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">Recibido el 1 de mayo de 2006    <br> Aceptado el 1 de noviembre de 2006</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">En este trabajo se presenta una descripci&oacute;n geom&eacute;trica para membranas superconductoras aplicada a ejemplos concretos. Se considera una acci&oacute;n general efectiva la cual incluye una clase general de objetos extendidos superconductores. Adem&aacute;s de la descripci&oacute;n lagrangiana, se presenta una descripci&oacute;n hamiltoniana inspirada en el formalismo <i>ADM </i>de la relatividad general. Las descripciones son usadas considerando diversas configuraciones de paredes de dominio: esfera, pared infinita, cilindro y cuerda cerrada, en distintos espacios&#150;tiempo de trasfondo.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Descriptores: </b>Cuerdas; membranas; objetos relativistas superconductores; defectos topol&oacute;gicos; rayos c&oacute;smicos.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>     <p align="justify"><font face="verdana" size="2">In this work we present a geometrical description for superconducting membranes in concise examples. A general effective action is considered, which includes a general class of extended superconducting objects. Besides the Lagrangian description, a Hamiltonian description based on the <i>ADM </i>fashion of general relativity is considered. Both descriptions are used considering different domain walls configurations: sphere, infinite wall, cylinder and closed string, in several spacetime backgrounds.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Keywords: </b>Strings; branes; relativistic superconducting objects; topological defects; cosmic rays.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">PACS:  04.20.Fy; 11.25.Wx; 11.27.+d; 46.70Hg; 47.10.Df; 98.80.Cq</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><a href="/pdf/rmf/v53s4/v53s4a24.pdf">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Agradecimientos</b></font></p>     <p align="justify"><font face="verdana" size="2">Agradezco a PIFI&#150;IPN, a Ruben Cordero y CGPI&#150;IPN a trav&eacute;s de 20051855 y a Efra&iacute;n Rojas y CONACYT a trav&eacute;s de C01&#150;41639, por el apoyo recibido.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Referencias</b></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">1. B. Carter, "Brane dynamics for treatment of cosmic strings and vortons". Proc. 2nd Mexican School on Gravitation and Mathematical Physics, Tlaxcala, 1996, ed. A. Garc&iacute;a, C. Lammerzahl, A. Macias, D. N&uacute;&ntilde;ez (Science Network Publishing, Konstanz, 1997), hep&#150;th/9705172.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8394770&pid=S0035-001X200700100002400001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">2. R. Capovilla and J. Guven,<i> Phys. Rev. D </i><b>51</b> (12) (1995) 6736 (8).</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8394771&pid=S0035-001X200700100002400002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">3. R. Capovilla and J. Guven, <i>Class. 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