<?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>1870-3542</journal-id>
<journal-title><![CDATA[Revista mexicana de física E]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. fís. E]]></abbrev-journal-title>
<issn>1870-3542</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Física]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-35422006000200004</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Quantum bouncer with dissipation]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad de Guadalajara Departamento de Física ]]></institution>
<addr-line><![CDATA[Guadalajara Jalisco]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2006</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2006</year>
</pub-date>
<volume>52</volume>
<numero>2</numero>
<fpage>126</fpage>
<lpage>131</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-35422006000200004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-35422006000200004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-35422006000200004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Effects on the spectra of the quantum bouncer due to dissipation are given when a linear o quadratic dissipation in the velocity of the particle is taken into account. Classical constants of motion and Hamiltonians are deduced for these systems and their quantized eigenvalues are estimated through perturbation theory. Differences were found comparing the eigenvalues of the constants of motion and the eigenvalues of the Hamiltonians. The cases when the dissipation parameters go to zero are compared with the nondissipative cases.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Los efectos en el espectro del rebotador cuántico debido a la disipación son dados cuando una disipación lineal o cuadrática en la velocidad de la partícula es tomada en cuenta. Constantes de movimiento clásicas y Hamiltonianos se deducen para estos sistemas y sus eigenvalores cuantizados son estimados mediante la teoría de perturbaciones. Se encuentran diferencias comparando los eigenvalores de las constantes de movimiento y los eigenvalores de los Hamiltonianos. Los casos cuando los parámetros de disipación se hacen cero son comparados con los casos no disipativos.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Classical mechanics]]></kwd>
<kwd lng="en"><![CDATA[discrete systems]]></kwd>
<kwd lng="en"><![CDATA[formalism]]></kwd>
<kwd lng="es"><![CDATA[Mecánica clásica]]></kwd>
<kwd lng="es"><![CDATA[sistemas discretos]]></kwd>
<kwd lng="es"><![CDATA[formalismo]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  	    <p align="justify"><font face="verdana" size="4">Ense&ntilde;anza</font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="center"><font face="verdana" size="4"><b>Quantum bouncer with dissipation</b></font></p>  	    <p align="center"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="center"><font face="verdana" size="2"><b>G. L&oacute;pez and G. Gonz&aacute;lez</b></font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><i>Departamento de F&iacute;sica de la Universidad de Guadalajara, Apartado Postal 4&#45;137, 44410 Guadalajara, Jalisco, M</i>&eacute;<i>xico.</i></font></p>      <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2">Recibido el 25 de abril de 2005;    ]]></body>
<body><![CDATA[<br> 	aceptado el 17 de enero de 2006</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">Effects on the spectra of the quantum bouncer due to dissipation are given when a linear o quadratic dissipation in the velocity of the particle is taken into account. Classical constants of motion and Hamiltonians are deduced for these systems and their quantized eigenvalues are estimated through perturbation theory. Differences were found comparing the eigenvalues of the constants of motion and the eigenvalues of the Hamiltonians. The cases when the dissipation parameters go to zero are compared with the nondissipative cases.</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Keywords:</b> Classical mechanics; discrete systems; formalism.</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>  	    <p align="justify"><font face="verdana" size="2">Los efectos en el espectro del rebotador cu&aacute;ntico debido a la disipaci&oacute;n son dados cuando una disipaci&oacute;n lineal o cuadr&aacute;tica en la velocidad de la part&iacute;cula es tomada en cuenta. Constantes de movimiento cl&aacute;sicas y Hamiltonianos se deducen para estos sistemas y sus eigenvalores cuantizados son estimados mediante la teor&iacute;a de perturbaciones. Se encuentran diferencias comparando los eigenvalores de las constantes de movimiento y los eigenvalores de los Hamiltonianos. Los casos cuando los par&aacute;metros de disipaci&oacute;n se hacen cero son comparados con los casos no disipativos.</font></p>      <p align="justify"><font face="verdana" size="2"><b>Descriptores:</b> Mec&aacute;nica cl&aacute;sica; sistemas discretos; formalismo.</font></p>      <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">PACS: 03.20.+i; 03.65.Ca</font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><a href="/pdf/rmfe/v52n2/v52n2a4.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>References</b></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">1. R. Glauber and V.I. Man'ko,    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8445990&pid=S1870-3542200600020000400001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --> <i>Sov. Phys. JEPT</i> <b>60</b> (1984) 450;    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8445991&pid=S1870-3542200600020000400002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --> V.V. Dodonov, <i>Hadron J.</i> <b>4</b> (1981) 173;    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8445992&pid=S1870-3542200600020000400003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --> G. Lopez, M. Murgia, and M. Sosa, <i>Mod. Phys. Lett. B</i><b>11</b> (1997) 625.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8445993&pid=S1870-3542200600020000400004&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font face="verdana" size="2">2. M. Razavy, <i>Can. J. Phys.</i> <b>50</b> (1972) 2037;    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8445995&pid=S1870-3542200600020000400005&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --> S. Okubo, <i>Phys. Rev. A</i> <b>23</b> (1981) 2776;    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8445996&pid=S1870-3542200600020000400006&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --> G. Lopez, M. Murgia, and M. Sosa, <i>Mod. Phys. Lett. B</i><b>15</b> (2001) 965.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8445997&pid=S1870-3542200600020000400007&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">3. M. Mijatovic, B. Veljanoski, and D. Hajdukovic, <i>Hadronic J.</i> <b>7</b> (1984) 1207;    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8445999&pid=S1870-3542200600020000400008&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --> G. Lopez, <i>Ann. Phys.</i> <b>251</b> (1996) 372;    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8446000&pid=S1870-3542200600020000400009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --> G. Lopez and G. Gonzalez, <i>IL Nuo. Cim. B,</i> <b>118</b> (2003) 107.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8446001&pid=S1870-3542200600020000400010&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">4. A. O. Caldeira and A.T. Leggett, <i>Physica A</i> <b>121</b> (1983) 587;    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8446003&pid=S1870-3542200600020000400011&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --> W.G. Unruh and W.H. Zurek, <i>Phys. Rev. D</i> <b>40</b> (1989) 1071;    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8446004&pid=S1870-3542200600020000400012&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --> B. L. Hu, J.P. Paz, and Y. Zhang, <i>Phys. Rev. D</i> <b>45</b> (1992) 2843;    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8446005&pid=S1870-3542200600020000400013&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --> G.P. Berman, F. Borgonovi, G.V. Lopez, and V.I. Tsifrinovich, <i>Phys. Rev. A</i> <b>68</b> (2003) 012102.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8446006&pid=S1870-3542200600020000400014&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">5. G. Lopez, <i>Rev. Mex. F&iacute;s.</i> <b>48</b> (2002) 10.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8446008&pid=S1870-3542200600020000400015&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">6. J. Gean&#45;Banacloche, <i>Am. J. Phys.</i> <b>67</b> (1999) 776;    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8446010&pid=S1870-3542200600020000400016&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --> D.M. Good&#45;manson, <i>Am. J. Phys.</i> <b>68</b> (2000) 866.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8446011&pid=S1870-3542200600020000400017&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">7. R. Onofrio and L. Viola, quant&#45;ph/9606024 v1 (1996).    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8446013&pid=S1870-3542200600020000400018&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font face="verdana" size="2">8. G. L&oacute;pez, <i>Rev. Mex. F&iacute;s.</i> <b>45</b> (1999) 1817.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8446015&pid=S1870-3542200600020000400019&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>      <!-- ref --><p align="justify"><font face="verdana" size="2">9. G. Lopez, <i>Partial Differential Equations of First Order and Their Applications to Physics</i> (World Scientific, 1999) p. 37.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8446017&pid=S1870-3542200600020000400020&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">10. F. Negro and A. Tartaglia, <i>Phys. Lett. A</i> <b>77</b> (1980); F. Negro and A. Tartaglia, <i>Phys. Rev. A</i> <b>23</b> (1981) 1591.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8446019&pid=S1870-3542200600020000400021&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">11. P.A.M. Dirac, <i>The Principles of Quantum Mechanics</i> (Oxford Science Publications, 1992).    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8446021&pid=S1870-3542200600020000400022&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">12. J.S. Borges, L.N. Epele, and H. Fanchiotti, <i>Phys. Rev. A</i> <b>38</b> (1988) 3101;    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8446023&pid=S1870-3542200600020000400023&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --> C. Stuckeno and D.H. Kobe, <i>Phys. Rev. A</i> <b>34</b> (1986) 3565;    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8446024&pid=S1870-3542200600020000400024&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --> M. Mijatovic, B. Veljanoski, and D. Hajdukovic, <i>Hadronic J.</i> <b>7</b> (1984) 1207;    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8446025&pid=S1870-3542200600020000400025&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --> B.W. Huang, Z.V. Gu, and S.W. Qiam, <i>Phys. Lett A</i> <b>142</b> (1989) 203;    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8446026&pid=S1870-3542200600020000400026&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --> M. Razavy, <i>Hadronic J.,</i> <b>6</b> (1983)406.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8446027&pid=S1870-3542200600020000400027&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>      ]]></body><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Glauber]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Man'ko]]></surname>
<given-names><![CDATA[V.I.]]></given-names>
</name>
</person-group>
<source><![CDATA[]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<source><![CDATA[Sov. Phys. JEPT]]></source>
<year>1984</year>
<volume>60</volume>
<page-range>450</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dodonov]]></surname>
<given-names><![CDATA[V.V.]]></given-names>
</name>
</person-group>
<source><![CDATA[Hadron J.]]></source>
<year>1981</year>
<volume>4</volume>
<page-range>173</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lopez]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Murgia]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Sosa]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Mod. Phys. Lett.]]></source>
<year>1997</year>
<volume>B11</volume>
<page-range>625</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Razavy]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<source><![CDATA[Can. J. Phys.]]></source>
<year>1972</year>
<volume>50</volume>
<page-range>2037</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Okubo]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Phys. Rev.]]></source>
<year>1981</year>
<volume>A 23</volume>
<page-range>2776</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lopez]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Murgia]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Sosa]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Mod. Phys. Lett.]]></source>
<year>2001</year>
<volume>B15</volume>
<page-range>965</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mijatovic]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Veljanoski]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Hajdukovic]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Hadronic J.]]></source>
<year>1984</year>
<volume>7</volume>
</nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lopez]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Ann. Phys.]]></source>
<year>1996</year>
<volume>251</volume>
<page-range>372</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lopez]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Gonzalez]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[IL Nuo. Cim. B]]></source>
<year>2003</year>
<volume>118</volume>
<page-range>107</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Caldeira]]></surname>
<given-names><![CDATA[A. O.]]></given-names>
</name>
<name>
<surname><![CDATA[Leggett]]></surname>
<given-names><![CDATA[A.T.]]></given-names>
</name>
</person-group>
<source><![CDATA[Physica A]]></source>
<year>1983</year>
<volume>121</volume>
<page-range>587</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Unruh]]></surname>
<given-names><![CDATA[W.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Zurek]]></surname>
<given-names><![CDATA[W.H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Phys. Rev.]]></source>
<year>1989</year>
<volume>D 40</volume>
<page-range>1071</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hu]]></surname>
<given-names><![CDATA[B. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Paz]]></surname>
<given-names><![CDATA[J.P.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<source><![CDATA[Phys. Rev.]]></source>
<year>1992</year>
<volume>D 45</volume>
<page-range>2843</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Berman]]></surname>
<given-names><![CDATA[G.P.]]></given-names>
</name>
<name>
<surname><![CDATA[Borgonovi]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Lopez]]></surname>
<given-names><![CDATA[G.V.]]></given-names>
</name>
<name>
<surname><![CDATA[Tsifrinovich]]></surname>
<given-names><![CDATA[V.I.]]></given-names>
</name>
</person-group>
<source><![CDATA[Phys. Rev.]]></source>
<year>2003</year>
<volume>A 68</volume>
<page-range>012102</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lopez]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<source><![CDATA[Rev. Mex. Fís.]]></source>
<year>2002</year>
<volume>48</volume>
<page-range>10</page-range></nlm-citation>
</ref>
<ref id="B16">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gean-Banacloche]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Am. J. Phys.]]></source>
<year>1999</year>
<volume>67</volume>
<page-range>776</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Good-manson]]></surname>
<given-names><![CDATA[D.M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Am. J. Phys.]]></source>
<year>2000</year>
<volume>68</volume>
<page-range>866</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Onofrio]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Viola]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<source><![CDATA[quant-ph/9606024]]></source>
<year>1996</year>
<volume>v1</volume>
</nlm-citation>
</ref>
<ref id="B19">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[López]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Rev. Mex. Fís]]></source>
<year>1999</year>
<volume>45</volume>
<page-range>1817</page-range></nlm-citation>
</ref>
<ref id="B20">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lopez]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Partial Differential Equations of First Order and Their Applications to Physics]]></source>
<year>1999</year>
<page-range>37</page-range><publisher-name><![CDATA[World Scientific]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B21">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Negro]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Tartaglia]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Negro]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Tartaglia]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<source><![CDATA[Phys. Lett.Phys. Rev.]]></source>
<year>1980</year>
<month>19</month>
<day>81</day>
<volume>A 77</volume><volume>A 23</volume>
<page-range>1591</page-range></nlm-citation>
</ref>
<ref id="B22">
<label>11</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dirac]]></surname>
<given-names><![CDATA[P.A.M.]]></given-names>
</name>
</person-group>
<source><![CDATA[The Principles of Quantum Mechanics]]></source>
<year>1992</year>
<publisher-name><![CDATA[Oxford Science Publications]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B23">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Borges]]></surname>
<given-names><![CDATA[J.S.]]></given-names>
</name>
<name>
<surname><![CDATA[Epele]]></surname>
<given-names><![CDATA[L.N.]]></given-names>
</name>
<name>
<surname><![CDATA[Fanchiotti]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Phys. Rev.]]></source>
<year>1988</year>
<volume>A 38</volume>
<page-range>3101</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Stuckeno]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Kobe]]></surname>
<given-names><![CDATA[D.H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Phys. Rev.]]></source>
<year>1986</year>
<volume>A 34</volume>
<page-range>3565</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mijatovic]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Veljanoski]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Hajdukovic]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Hadronic J.]]></source>
<year>1984</year>
<volume>7</volume>
</nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Huang]]></surname>
<given-names><![CDATA[B.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Gu]]></surname>
<given-names><![CDATA[Z.V.]]></given-names>
</name>
<name>
<surname><![CDATA[Qiam]]></surname>
<given-names><![CDATA[S.W.]]></given-names>
</name>
</person-group>
<source><![CDATA[Phys. Lett A]]></source>
<year>1989</year>
<volume>142</volume>
<page-range>203</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Razavy]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Hadronic J.]]></source>
<year>1983</year>
<volume>6</volume>
<page-range>406</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
