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Seminário con el prof. Prof. Pawel Klimas – Exact vortex solutions in the extended CPN Skyrme-Faddeev model. – 20 de septiembre de 2013 – 10:00
EL PROGRAMA DE POSGRADO EN FÍSICA invita a todos para lo seminario:
Exact vortex solutions in the extended CPN Skyrme-Faddeev model.
Prof. Pawel Klimas
Departamento de Física – UFSC
Resumen:
The Skyrme-Faddeev model is a candidate for an effective classical model of the pure Yang-Mills theory in the low-energy (non-perturbative) limit. Its extended version possesses an integrable sector presenting an infinite number of local conservation laws, which are associated to the hidden symmetries of the zero curvature representation of the theory in loop space. In this sector one can construct some exact vortex solutions with waves traveling along them.
Fecha: 20 de septiembre de 2013 – (Viernes) – Lugar: Auditorio del bloque G – Sala 419 – Horário: 10:00
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Publicado la norma del proceso selectivo para el ingreso en semestre 2014/1
Publicado la norma do proceso selectivo para ingreso en 2014/1. Haga click aquí para visitar la página do proceso selectivo
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(Português) Minicursos de Física I (Movimento Unidimensional, Vetores e Movimento Bidimensional e Colisões) e Cálculo I (Funções)
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Seminário con el prof. Prof. Heinz von Seggern – Colour-tuneable organic light-emitting transistors – 13 de septiembre de 2013 – 10:00
EL PROGRAMA DE POSGRADO EN FÍSICA invita a todos para lo seminario:
Colour-tuneable organic light-emitting transistors
Prof. Heinz von Seggern
Electronic Materials, Technische Universität Darmstadt, 64287 Darmstadt, Germany.
Resumen:
The unique property of ambipolar organic light emitting field-effect transistors (OLETs) is the ability to position the light emission zone within the transistor channel through the applied biases. In this talk the basics of the ambipolar OLET will be discussed and two examples for colour conversion will be demonstrated. Both approaches take advantage of the ability of a controlled displacement of the recombination zone through the organic semiconductors. In the first approach two different acenes with different emission colours are employed in a parallel stack in a top-contact bottom-gate FET configuration. It will be demonstrated that due to thermionic emission of electrons at the source, light of one colour can be generated near the source contact even in hole accumulation. Due to the electrically controllable positioning the charge carrier recombination zone can be directed from the top acene layer to in the bottom acene layer. Thereby the emitted light can be continuously shifted by about 50 nm from green to red. A second approach takes advantage of the horizontal displacement of the recombination zone within the channel of the transistor. On top of the semi-transparent gate electrode of a F8BT transistor a colour conversion layer is deposited in a wedge-like shape partially covering the channel. In the ambipolar regime the charge carrier recombination takes place in the F8BT layer, and dependent on the position of the recombination zone either the emitted light of the F8BT layer or the partially absorbed and converted light from the colour conversion layer can be detected. The electroluminescence maximum of the emitted light can be shifted by about 30 nm. The physics and potential applications of such colour tuneable OLETs will be discussed.
Fecha: 13 de septiembre de 2013 – (Viernes) – Lugar: Auditorio del bloque G – Sala 419 – Horário: 10:00
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(Português) Informações sobre o procedimento para cancelamento de matrícula
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Seminário con el prof. Prof. Norberto Scoccola – Quark matter under strong magnetic fields – 6 de septiembre de 2013 – 10:00
EL PROGRAMA DE POSGRADO EN FÍSICA invita a todos para lo seminario:
Quark matter under strong magnetic fields
Prof. Norberto Scoccola / Depto. de Fisica, Lab. TANDAR – Argentina
Resumen:
The phase structure of magnetized cold quark matter is analyzed in the framework of the two-flavor Nambu-Jona-Lasinio models paying special attention to its dependence on the model parameters as different values within the phenomenological allowed range are consid- ered. We first discuss the simpler chiral limit case, and then the more realistic situation of finite current masses. We show that in spite of the difference in the nature of some transi- tions, both cases are alike and exhibit a rather rich phase structure for a significant range of acceptable parameters. A simplification of the phase structure is obtained as parameters leading to larger values of the dressed quark mass in the vacuum are considered. Finally, we consider the so-called “inverse catalysis effect” showing that in some phases it implies an actual decrease of the order parameter as the magnetic field increases.
Fecha: 6 de septiembre de 2013 – (Viernes) – Lugar: Auditorio del bloque G – Sala 419 – Horário: 10:00
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Examen de Cualificación al Doctorado de Luiz Laércio Lopes – 6 de septiembre de 2013 – Viernes – 2:00 pm
El Programa de Posgrado en Física invita a todos para:
Examen de Cualificación al Doctorado
Luiz Laércio Lopes
Estrelas de Nêutrons no Regime da Simetria SU(3)
Jurados
Prof. Dr. Marcus Emmanuel Benghi Pinto – (Presidente) – FSC/UFSC
Prof. Dr. Norberto N. Scoccola – (Miembro externo) – Depto de Física – Lab. TANDAR
Prof. Dr. Sidney dos Santos Avancini – (Miembro titular) – FSC/UFSC
Fecha: 6 de septiembre de 2013- sexta-feira – Horario: 2:00 pm -Lugar: Auditorio del bloque G – Sala 419
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(Português) Jornada de Lutas do Sintufsc – fechamento da secretaria do Programa
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Sustentación de Tesis de de Iuri Stefani Brandt – 2 de septiembre 2013 – Lunes – Horario: 2:00 pm
El programa de Posgrado en Fisica invita a todos para la:
Sustentación de Tesis
Iuri Stefani Brandt
PROPRIEDADES RELACIONADAS ÀS VACÂNCIAS DE Cu EM FILMES ELETRODEPOSITADOS DE Cu2O E EMISSÃO DE PARES PÓSITRON-ELÉTRON CORRELACIONADOS DE SUPERFÍCIES
Jurados:
Prof. Dr. André Avelino Pasa – (Presidente) – FSC/UFSC
Prof. Dr. Marcelo Knobel – (Miembro externo) – UNICAMP
Prof. Dr. Jandir Miguel Hickmann – (Miembro externo) – UFRGS
Prof. Dr. Alexandre da Cas Viegas – (Membro titular) – FSC/UFSC
Prof. Dr. Márcio Santos – (Miembro titular) – FSC/UFSC
Dr. Vinicius Claudio Zoldan – (Miembro titular) – FSC/UFSC
Dr. Jonathan Israel Avila Osses – (Miembro suplente) -FSC/UFSC
Dr. Mohmmad Khalid – (Miembro suplente) – FSC/UFSC
Fecha: 2 de septiembre 2013 – Lunes – Horario: 2:00 pm – Lugar: Auditorio del bloque G – Sala 419
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Examen de Cualificación al Doctorado de Rodrigo Pereira Rocha – 30 de agosto de 2013 – Viernes – 10:00 am
El Programa de Posgrado en Física invita a todos para:
Examen de Cualificación al Doctorado
Rodrigo Pereira Rocha
Difusão e Localização em Sistemas Desordenados Descritas por uma Equação Mestra Estocástica
Jurados
Prof. Dr. Wagner Figueiredo – (Presidente) – FSC/UFSC
Prof. Dr. Mario Jose de Oliveira – (Miembro externo) – IF/USP
Prof. Dr. Nilton da Silva Branco – (Miembro titular) – FSC/UFSC
Prof. Dr. Jeferson de Lima Tomazelli – (Miembro titular) – FSC/UFSC
Fecha: 30 de agosto de 2013- sexta-feira – Horario: 10:00 am -Lugar: Sala de Reuniones del bloque G – Sala 11



