https://ecfm.usac.edu.gt/ Mas sobre esta persona es https://ecfm.usac.edu.gt/node/593 <div data-history-node-id="593" class="node node--type-publicaciones node--view-mode-rss ds-2col-stacked clearfix"> <div class="group-header"> <div class="field field--name-node-title field--type-ds field--label-hidden field__item"><h2> Gravitational realization of magnons in a ferromagnetic spin chain </h2> </div> </div> <div class="group-left"> <div class="field field--name-field-numero-ecfm field--type-string field--label-above"> <div class="field__label">Número ECFM</div> <div class="field__item">IFM-2019-11</div> </div> <div class="field field--name-field-ano field--type-datetime field--label-above"> <div class="field__label">Fecha de Publicación</div> <div class="field__item"><time datetime="2019-12-18T12:00:00Z" class="datetime">Mié, 18/12/2019 - 12:00</time> </div> </div> </div> <div class="group-right"> <div class="field field--name-field-autores field--type-entity-reference field--label-inline clearfix"> <div class="field__label">Autores</div> <div class="field__items"> <div class="field__item"><a href="/index.php/taxonomy/term/24" hreflang="es">MSc. Juan Diego Chang</a></div> <div class="field__item"><a href="/index.php/taxonomy/term/734" hreflang="es">Dr. Rodrigo de León Ardón</a></div> <div class="field__item"><a href="/index.php/taxonomy/term/28" hreflang="es">Dr. Juan Ponciano</a></div> <div class="field__item"><a href="/index.php/taxonomy/term/92" hreflang="es">Dr. Giovanni Ramírez García</a></div> </div> </div> <div class="field field--name-field-enlace-a-publicacion field--type-link field--label-inline clearfix"> <div class="field__label">Enlace a arXiv</div> <div class="field__item"><a href="https://arxiv.org/abs/1912.08761">arXiv:1912.08761 [hep-th]</a></div> </div> <div class="field field--name-field-revista field--type-link field--label-inline clearfix"> <div class="field__label">Revistas</div> <div class="field__items"> <div class="field__item"><a href="https://arxiv.org/abs/1912.08761">arXiv:1912.08761 [hep-th]</a></div> </div> </div> </div> <div class="group-footer"> </div> </div> Fri, 10 Jan 2020 18:11:40 +0000 ramirez 593 at https://ecfm.usac.edu.gt https://ecfm.usac.edu.gt/node/450 <div data-history-node-id="450" class="node node--type-tesis node--view-mode-rss ds-2col-stacked-fluid clearfix"> <header class="Titulo group-header"> <div class="field field--name-node-title field--type-ds field--label-hidden field__item"><TituloTesis class="TituloTesis"> PROPUESTA DE UNA FUNCIÓN DE CRECIMIENTO POBLACIONAL PARA EL MICRO ALGA SCENEDESUS ACUTUS </TituloTesis> </div> </header> <div class="group-left"> <div class="field field--name-field-autor field--type-entity-reference field--label-inline clearfix"> <div class="field__label">Autor</div> <div class="field__item"><a href="/taxonomy/term/483" hreflang="es">Werner Omar Chanta Bautista</a></div> </div> <div class="field field--name-field-carne field--type-integer field--label-inline clearfix"> <div class="field__label">Carné</div> <div class="field__item">200714976</div> </div> <div class="field field--name-field-asesor field--type-entity-reference field--label-inline clearfix"> <div class="field__label">Asesor</div> <div class="field__items"> <div class="field__item"><a href="/taxonomy/term/24" hreflang="es">MSc. Juan Diego Chang</a></div> <div class="field__item"><a href="/taxonomy/term/482" hreflang="es">MSc. Erick Estrada</a></div> </div> </div> </div> <div class="group-right"> <div class="field field--name-field-tesis field--type-file field--label-hidden field__item"> <span class="file file--mime-application-pdf file--application-pdf"> <a href="https://ecfm.usac.edu.gt/sites/default/files/2018-11/Tesis%20Werner%20Omar%20Chanta.pdf" type="application/pdf; length=13022061" title="Tesis Werner Omar Chanta.pdf">PROPUESTA DE UNA FUNCIÓN DE CRECIMIENTO POBLACIONAL PARA EL MICRO ALGA SCENEDESUS ACUTUS</a></span> </div> <div class="field field--name-field-ano-de-graduacion field--type-integer field--label-above"> <div class="field__label">Año de Graduación</div> <div class="field__item">2017</div> </div> </div> <div class="group-footer"> </div> </div> Fri, 23 Nov 2018 23:07:45 +0000 ederg 450 at https://ecfm.usac.edu.gt https://ecfm.usac.edu.gt/node/432 <div data-history-node-id="432" class="node node--type-publicaciones node--view-mode-rss ds-2col-stacked clearfix"> <div class="group-header"> <div class="field field--name-node-title field--type-ds field--label-hidden field__item"><h2> Modelo epidémico para el estudio regional de la Chikungunya </h2> </div> </div> <div class="group-left"> <div class="field field--name-field-numero-ecfm field--type-string field--label-above"> <div class="field__label">Número ECFM</div> <div class="field__item">IFM-2018-03</div> </div> <div class="field field--name-field-ano field--type-datetime field--label-above"> <div class="field__label">Fecha de Publicación</div> <div class="field__item"><time datetime="2018-06-27T12:00:00Z" class="datetime">Mié, 27/06/2018 - 12:00</time> </div> </div> </div> <div class="group-right"> <div class="field field--name-field-autores field--type-entity-reference field--label-inline clearfix"> <div class="field__label">Autores</div> <div class="field__items"> <div class="field__item"><a href="/index.php/taxonomy/term/28" hreflang="es">Dr. Juan Ponciano</a></div> <div class="field__item"><a href="/index.php/taxonomy/term/24" hreflang="es">MSc. Juan Diego Chang</a></div> <div class="field__item"><a href="/index.php/taxonomy/term/459" hreflang="es">Ing. Francisco Quiroa</a></div> </div> </div> <div class="field field--name-field-enlace-a-publicacion field--type-link field--label-inline clearfix"> <div class="field__label">Enlace a arXiv</div> <div class="field__item"><a href="https://digi.usac.edu.gt/ojsrevistas/index.php/cytes/article/view/412">Ciencia, Tecnología y Salud, 5 (1) 2018, 63-72</a></div> </div> <div class="field field--name-field-revista field--type-link field--label-inline clearfix"> <div class="field__label">Revistas</div> <div class="field__items"> <div class="field__item"><a href="https://digi.usac.edu.gt/ojsrevistas/index.php/cytes/article/view/412">Ciencia, Tecnología y Salud, 5 (1) 2018, 63-72</a></div> </div> </div> </div> <div class="group-footer"> </div> </div> Fri, 02 Nov 2018 21:08:39 +0000 ramirez 432 at https://ecfm.usac.edu.gt https://ecfm.usac.edu.gt/node/398 <div data-history-node-id="398" class="node node--type-publicaciones node--view-mode-rss ds-2col-stacked clearfix"> <div class="group-header"> <div class="field field--name-node-title field--type-ds field--label-hidden field__item"><h2> Broken phase solitons in the baby Skyrme model </h2> </div> </div> <div class="group-left"> <div class="field field--name-field-numero-ecfm field--type-string field--label-above"> <div class="field__label">Número ECFM</div> <div class="field__item">IFM-2018-02</div> </div> <div class="field field--name-field-ano field--type-datetime field--label-above"> <div class="field__label">Fecha de Publicación</div> <div class="field__item"><time datetime="2018-05-30T12:00:00Z" class="datetime">Mié, 30/05/2018 - 12:00</time> </div> </div> </div> <div class="group-right"> <div class="field field--name-field-autores field--type-entity-reference field--label-inline clearfix"> <div class="field__label">Autores</div> <div class="field__items"> <div class="field__item"><a href="/index.php/taxonomy/term/28" hreflang="es">Dr. Juan Ponciano</a></div> <div class="field__item"><a href="/index.php/taxonomy/term/346" hreflang="es">Emilio Estrada</a></div> <div class="field__item"><a href="/index.php/taxonomy/term/24" hreflang="es">MSc. Juan Diego Chang</a></div> </div> </div> <div class="field field--name-field-enlace-a-publicacion field--type-link field--label-inline clearfix"> <div class="field__label">Enlace a arXiv</div> <div class="field__item"><a href="https://journals.aps.org/prd/abstract/10.1103/PhysRevD.97.105028">Phys. Rev. D 97, 105028, 2018</a></div> </div> <div class="field field--name-field-revista field--type-link field--label-inline clearfix"> <div class="field__label">Revistas</div> <div class="field__items"> <div class="field__item"><a href="https://journals.aps.org/prd/abstract/10.1103/PhysRevD.97.105028">Phys. Rev. D 97, 105028, 2018</a></div> </div> </div> </div> <div class="group-footer"> </div> </div> Thu, 31 May 2018 06:03:53 +0000 ramirez 398 at https://ecfm.usac.edu.gt https://ecfm.usac.edu.gt/node/392 <div data-history-node-id="392" class="view-mode-rss ds-2col-stacked clearfix"> <div class="group-header"> <div class="field field--name-node-title field--type-ds field--label-hidden field__item"><h2> Correlaciones en cadenas de espín 1/2 inhomogéneas: una solución analítica </h2> </div> <div class="field field--name-field-tipo-evento field--type-list-string field--label-above"> <div class="field__label">Tipo</div> <div class="field__items"> <div class="field__item">Seminario</div> </div> </div> </div> <div class="group-left"> <div class="field field--name-field-logo-evento field--type-image field--label-hidden field__item"> <a href="https://ecfm.usac.edu.gt/sites/default/files/2018-05/quantummagne.jpg"><img src="/sites/default/files/styles/bigeventos/public/2018-05/quantummagne.jpg?itok=SfTbso4e" width="500" height="85" alt="Quantum Many Body" typeof="foaf:Image" class="image-style-bigeventos" /> </a> </div> <div class="field field--name-field-credito-al-autor-de-imagen field--type-link field--label-hidden field__item"><a href="https://phys.org/news/2013-03-scientists-coherent-propagation-impurity-chain.html">Scientists observe coherent propagation of single spin impurity in a chain of u…</a></div> </div> <div class="group-right"> <div class="field field--name-field-fecha-evento field--type-datetime field--label-above"> <div class="field__label">Fecha de Inicio</div> <div class="field__item"><time datetime="2018-05-10T16:00:00Z" class="datetime">Jue, 10/05/2018 - 10:00</time> </div> </div> <div class="clearfix text-formatted field field--name-field-lugar-del-evento field--type-text-long field--label-above"> <div class="field__label">Lugar del Evento</div> <div class="field__item"><div class="tex2jax_process"><p>Salón Rocas y Minerales (CESEM)</p> <p><span>Tercer nivel edificio T-1</span></p> <p><span>Ciudad Universitaria, USAC. Zona 12</span></p> <p> </p></div></div> </div> <div class="field field--name-field-expositores field--type-entity-reference field--label-above"> <div class="field__label">Expositores</div> <div class="field__items"> <div class="field__item"><a href="/taxonomy/term/24" hreflang="es">MSc. Juan Diego Chang</a></div> </div> </div> <div class="clearfix text-formatted field field--name-body field--type-text-with-summary field--label-above"> <div class="field__label">Descripción</div> <div class="field__item"><div class="tex2jax_process"><p>En esta charla, hablaremos un poco sobre cadenas de espín inhomogéneas. Presentaremos una expresión exacta del espectro de algunas cadenas inhomogéneas XX, así como sus funciones de correlación.</p></div></div> </div> </div> <div class="group-footer"> <div class="field field--name-field-tags field--type-entity-reference field--label-above"> <div class="field__label">Temas Relevates</div> <div class="field__items"> <div class="field__item"><a href="/taxonomy/term/405" hreflang="es">Correlaciones en cadenas</a></div> <div class="field__item"><a href="/taxonomy/term/406" hreflang="es">espín 1/2</a></div> <div class="field__item"><a href="/taxonomy/term/407" hreflang="es">inhomogéneas</a></div> <div class="field__item"><a href="/taxonomy/term/408" hreflang="es">solución analítica</a></div> <div class="field__item"><a href="/taxonomy/term/409" hreflang="es">Quatum</a></div> </div> </div> </div> </div> Tue, 08 May 2018 14:47:19 +0000 roes 392 at https://ecfm.usac.edu.gt https://ecfm.usac.edu.gt/node/328 <div data-history-node-id="328" class="view-mode-rss ds-2col-stacked clearfix"> <div class="group-header"> <div class="field field--name-node-title field--type-ds field--label-hidden field__item"><h2> Ansatz de Bethe para la cadena de Fibonacci XX </h2> </div> <div class="field field--name-field-tipo-evento field--type-list-string field--label-above"> <div class="field__label">Tipo</div> <div class="field__items"> <div class="field__item">Seminario</div> </div> </div> </div> <div class="group-left"> <div class="field field--name-field-logo-evento field--type-image field--label-hidden field__item"> <a href="https://ecfm.usac.edu.gt/sites/default/files/2017-08/640px-Fibonacci_spiral_34.svg_.png"><img src="/sites/default/files/styles/bigeventos/public/2017-08/640px-Fibonacci_spiral_34.svg_.png?itok=kFPUV_sE" width="500" height="316" alt="fibo" typeof="foaf:Image" class="image-style-bigeventos" /> </a> </div> <div class="field field--name-field-credito-al-autor-de-imagen field--type-link field--label-hidden field__item"><a href="https://commons.wikimedia.org/w/index.php?curid=3730979">Dicklyon - Trabajo propio utilizando: Inkscape, Dominio público, </a></div> </div> <div class="group-right"> <div class="field field--name-field-fecha-evento field--type-datetime field--label-above"> <div class="field__label">Fecha de Inicio</div> <div class="field__item"><time datetime="2017-08-24T16:00:00Z" class="datetime">Jue, 24/08/2017 - 10:00</time> </div> </div> <div class="clearfix text-formatted field field--name-field-lugar-del-evento field--type-text-long field--label-above"> <div class="field__label">Lugar del Evento</div> <div class="field__item"><div class="tex2jax_process"><p><span>Aula virtual</span></p> <p><span>Segundo nivel edificio T-1</span></p> <p><span>Ciudad Universitaria, USAC. Zona 12</span></p> <p> </p></div></div> </div> <div class="field field--name-field-expositores field--type-entity-reference field--label-above"> <div class="field__label">Expositores</div> <div class="field__items"> <div class="field__item"><a href="/taxonomy/term/24" hreflang="es">MSc. Juan Diego Chang</a></div> </div> </div> <div class="field field--name-field-posicionevento field--type-string field--label-hidden field__item">Investigador (ECFM-USAC)</div> <div class="clearfix text-formatted field field--name-body field--type-text-with-summary field--label-above"> <div class="field__label">Descripción</div> <div class="field__item"><div class="tex2jax_process"><p> En este trabajo intentamos calcular la entropía de entrelazamiento de una cadena de espines 1/2 de Fibonacci. Primero introduciré la cadena de Fibonacci y el concepto físico y matemático de cuasi-cristales. Luego mostraré y analizaré la ecuación de Schrödinger de dicho sistema. Después, mostraré cómo intenté aplicar el Ansatz de Bethe para resolverlo. Finalmente, traté de calcular el estado fundamental de dicho sistema. Sin embargo, esta técnica lleva a resolverlo ya sea con la cadena homogénea o bien el caso en que las constantes de acoplamiento sean complejos conjugados, haciendo que se consideren casos particulares de la modulación de Fibonacci. Es por esto que se considera cambiar el método a la transformación de Jordan-Wigner y el estudio de funciones cuasi-periódicas para generalizar el Ansatz de Bethe utilizando la generalización de las series de Fourier</p></div></div> </div> </div> <div class="group-footer"> <div class="field field--name-field-tags field--type-entity-reference field--label-above"> <div class="field__label">Temas Relevates</div> <div class="field__items"> <div class="field__item"><a href="/taxonomy/term/324" hreflang="es">Spin 1/2</a></div> <div class="field__item"><a href="/taxonomy/term/326" hreflang="es">Cadenas de Fibonacci</a></div> </div> </div> </div> </div> Wed, 23 Aug 2017 20:34:27 +0000 brayest3 328 at https://ecfm.usac.edu.gt