<div dir="ltr"><p style="font-size:12.8px"><font face="arial, helvetica, sans-serif">Estimados,</font></p><p style="font-size:12.8px"><font face="arial, helvetica, sans-serif">Les agradezco la difusión del <span class="gmail-m_217300597860105917gmail-m_-6941790403822833072gmail-m_-7147533385902873527gmail-m_9194933881212233703gmail-il"><span class="gmail-m_217300597860105917gmail-m_-6941790403822833072gmail-il"><span class="gmail-m_217300597860105917gmail-il"><span class="gmail-il">anuncio</span></span></span></span> del próximo seminar<span class="gmail-m_217300597860105917gmail-m_-6941790403822833072gmail-m_-7147533385902873527gmail-m_9194933881212233703gmail-m_-783468885696854435gmail-m_-167443931672407118gmail-m_2645097548491923312il"><span class="gmail-m_217300597860105917gmail-m_-6941790403822833072gmail-m_-7147533385902873527gmail-m_9194933881212233703gmail-il">io</span></span> del Ciclo de Coloquios y <span class="gmail-m_217300597860105917gmail-m_-6941790403822833072gmail-m_-7147533385902873527gmail-m_9194933881212233703gmail-m_-783468885696854435gmail-m_-167443931672407118gmail-m_2645097548491923312il"><span class="gmail-m_217300597860105917gmail-m_-6941790403822833072gmail-m_-7147533385902873527gmail-m_9194933881212233703gmail-il"><span class="gmail-m_217300597860105917gmail-m_-6941790403822833072gmail-il"><span class="gmail-m_217300597860105917gmail-il"><span class="gmail-il">Seminarios</span></span></span></span></span> que se organizan el Instituto de Física La Plata y el Departamento de Física. </font></p><p style="font-size:12.8px"><span style="font-family:arial,helvetica,sans-serif;font-size:12.8px">Se adjunta el archivo para difundir en carteleras.</span></p><p style="font-size:12.8px"><span style="font-size:12.8px">Saludos cordiales,</span><br style="font-size:12.8px"><span style="font-size:12.8px">Virginia Manías</span><br style="font-size:12.8px"><span style="font-size:12.8px">Secretaria Científica del IFLP</span></p><div><br></div><div><p class="MsoNormal" align="center" style="text-align:center"><b><u><span lang="ES" style="font-family:arial,sans-serif">SEMINARIOS  DEL
IFLP y DEL DEPARTAMENTO</span></u></b></p>

<p class="MsoNormal" align="center" style="text-align:center"><b><u><span style="font-family:arial,sans-serif">Día y horario especiales<span></span></span></u></b></p>

<p class="MsoNormal" align="center" style="text-align:center"><b><u><span style="font-family:arial,sans-serif">MARTES 22 de MAYO – 12:30 hs<span></span></span></u></b></p>

<p class="MsoNormal" align="center" style="text-align:center"><b><u><span lang="EN-US" style="font-family:arial,sans-serif">AULA CHICA<span></span></span></u></b></p>

<p class="MsoNormal" style="text-align:justify"><br></p>

<p class="MsoNormal"><b><u><span lang="EN-US" style="font-family:arial,sans-serif">TÍTULO</span></u></b><b><span lang="PT-BR" style="font-family:arial,sans-serif">: </span></b><b><span lang="EN-US" style="font-family:"antique olive",sans-serif">"Parity
anomaly in four dimensions"</span></b><span lang="PT-BR" style="font-family:arial,sans-serif;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span></span></span></p>

<p class="MsoNormal" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span lang="EN-US" style="font-family:arial,sans-serif;color:rgb(69,69,69)"><span> </span></span></p>

<p class="MsoNormal" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><b><u><span style="font-family:arial,sans-serif">EXPOSITOR:</span></u></b><b><span style="font-family:arial,sans-serif"> </span></b><span class="gmail-Ninguno"><b><span lang="PT-BR">Dmitry Vassilevich</span></b></span></p><p class="MsoNormal" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><i><span lang="PT-BR"><font size="2">Tomsk State
University & Universidade Federal do ABC</font></span></i></p><p class="MsoNormal" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><i><span lang="PT-BR"><font size="2"><br></font></span></i></p>

<p class="MsoNormal"><b><u><span lang="EN-US" style="font-family:arial,sans-serif">Resumen:</span></u></b><span lang="EN-US" style="font-family:arial,sans-serif"> </span><span lang="PT-BR" style="font-family:arial,sans-serif">It is known for more than 30 years that quantum Dirac fermions
in odd dimensional spaces possess the so called parity anomaly related to the
spectral asymmetry of the Dirac operator. As a result, the Chern-Simons action
with the level k=1/2 is induced in 3D. We have studied Dirac fermions on
four-dimensional manifolds with boundaries and demonstrated that a similar
phenomenon takes place: spectral asymetry of the Dirac operator leads to a
boundary Chern-Simons term. We found a somewhat unusual Chern-Simons level
k=1/4, which is however consistent with the counting of boundary degrees of
freedom.</span><span></span></p>

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