Graduate Program in Physics at UFSC, Florianópolis
  • Seminar with professor Peter Skabara – September 27, 2018 (thursday) – 10:15 a.m.

    Publicado em 23/09/2018 às 08:51 AM

    THE PHYSICS GRADUATE PROGRAM invites everyone to the seminar:

    Prof Peter Skabara is the Ramsay Chair of Chemistry at the University of Glasgow and the Deputy-Editor-in-Chief and Chair of the Journal of Materials Chemistry C. He is the author of over 180 papers, focusing on the synthesis and application of new materials for organic electronics. Prof Skabara is the recipient of a Royal Society Wolfson Research Merit Award holder, which was gained for his research into monodisperse macromolecular conjugated materials for photonic applications.

    Twisted and other non-conventional conjugated architectures: switching functionality from charge transport to photonic applications

    Prof Peter Skabara
    Ramsay Chair of Chemistry at the University of Glasgow

    Abstract:

    Keywords: Conjugated macromolecules, electron donors, oligofluorene, oligothiophene, charge transport
    Summary: The synthesis and properties of some complex star-shaped conjugated architectures will be reported.

    We have synthesised a series of well-defined, monodisperse oligothiophenes bearing a bridging, fused tetrathiafulvalene (TTF) unit and the much lesser known tetrathiocin heterocycle. The materials exhibit complex redox chemistry for longer conjugated analogues and they can be oxidised up to the octacation within a relatively narrow potential window. The methodology used to construct the end-capped oligothiophene chains has enabled us to explore a new range of Ge centred cruciform structures, in which the central bridging atom of the molecule provides a tetrahedral geometry. Whilst these materials are candidates for applications requiring good charge transport properties, we have also been investigating oligofluorene star-shaped structures for photonics and sensor applications and we report several series of new materials with multifunctional architectures. In this presentation we report on the synthesis, self-assembly and properties of these monodisperse macromolecules.

    Date: September 27, 2018 – (thursday) – Place: Sala 114 – Sala de reuniões do Departamento de Física – Time: 10:15 a.m.


  • Seminar with professor Prof. Przemyslaw Data – September 24, 2018 (monday) – 10:15 a.m.

    Publicado em 21/09/2018 às 08:47 AM

     THE PHYSICS GRADUATE PROGRAM invites everyone to the seminar: 

    Chemistry in the world of physics. How to unify the knowledge and get sensible results

    Prof. Przemyslaw Data
    Salesian University of Technology, Poland

     

     Date: September 24, 2018 – (monday) – Place: Sala 212 – Auditório do Departamento de Física – Time: 10:15 a.m.


  • Quinto Encontrinho sobre Física de Hádrons – September 18, 2018 (tuesday) – Das 9 horas às 11h30min

    Publicado em 13/09/2018 às 11:18 AM

    THE PHYSICS GRADUATE PROGRAM invites everyone to the seminar:

    Quinto Encontrinho sobre Física de Hádrons

    Abstract:

    9:00 – 9:20 – Kauan Marquez (D)– Transição de fases e conversão estelar
    9:20 – 9:30 – Maylon Morais (IC)– Estrelas de neutrons e o gás ideal
    9:30 – 9:50 – Tadeu Pires (IC)– Equações de Estado
    9:50 – 10:15 – Luiza Spanamberg (IC)+ Betânia Backes (IC) – Ordem de magnitude da física que descreve estrelas de nêutrons

    Intervalo

    10:30- 10:50 – Carline Biesdorf (M)– Transição de fases e o diagrama da QCD
    10:50- 11:10 – Clésio Evangelista (D)– Da TOV a gravidade modificada
    11:10 -11:30 – César Vasquez Flores (PD) – Estrelas compactas na era das ondas gravitacionais
    Com a participação especial de Isabella Marzola (M) e ajuda de Karina Buss (E) e Beatriz Nattrodt (E)

    PD= pós-doutorando / D= doutorando / M=mestranda / IC= alunos de iniciação científica / E = alunos de extensão

    Date: September 18, 2018 – (tuesday) – Place: Sala 114 – Sala de reuniões do Departamento de Física – Time: Das 9 horas às 11h30min


  • Seminar with professor Osame Kinouchi – September 18, 2018 (friday) – 10:15 a.m.

    Publicado em 11/09/2018 às 08:12 AM

    THE PHYSICS GRADUATE PROGRAM invites everyone to the seminar:

    Stochastic oscillations, power law avalanches and dragon kings in quasi-critical systems

    Prof. Dr. Osame Kinouchi
    Departamento de Física – FFCLRP – USP

    Abstract:

    In the last decade, several models with network adaptive mechanisms (link deletion-creation, dynamic synapses, dynamic gains) have been proposed as examples of self-organized criticality (SOC) to explain neuronal avalanches. However, all these systems present stochastic oscillations hovering around the critical region that are incompatible with standard SOC and has been called self-organized quasi-criticality (SOqC). Here we make a linear stability analysis of the mean field fixed points of a SOqC model of discrete time stochastic spiking neurons. Firing rate adaptation, produced by dynamic neuronal gains, tunes the system toward the critical region. We find that the fixed points correspond to barely stable spirals that turn out indifferent at criticality where a Neimark-Sacker bifurcation occurs. This near indifference means that finite-size fluctuations can excite stochastic oscillations and avalanches, producing a mechanism for the emergence of dragon king events. The coexistence of these different types of neuronal activity is an experimental prediction that differs from standard SOC models.

    Date: September 18, 2018 – (friday) – Place: Sala 212 – Auditório do Departamento de Física – Time: 10:15 a.m.


  • Qualifying Examination for Doctoral Thesis of Igor Dornelles Schoeller Siciliani – September 13, 2018 – thursday – 2 p.m.

    Publicado em 09/09/2018 às 05:03 PM

    The Physics Graduate Program invites everyone to:

    Qualifying Examination for Doctoral Thesis

    Igor Dornelles Schoeller Siciliani

    Aplicações de Mecânica Estatística em Econofísica, Mineração de Textos e Neurociência

    Defense Committee:

    Prof. Dr. Marcelo Henrique Romano Tragtenberg – (president) – UFSC/FSC
    Prof. Dr. Osame Kinouchi Filho – (external member) – USP
    Prof. Dr. Lucas Nicolao – (local member) – UFSC/FSC
    Prof. Dr. Eraldo Sérgio Barobosa da Silva – (local member) – UFSC/CMN

    Date: September 13, 2018 – thursday – Time: 2 p.m. – Place: Auditório Airton Silva – (piso térreo do Departamento de Matemática)


  • Defence of M.Sc. dissertation of Thomas Zerrenner Flórido – September 12, 2018 – 2:00 p.m.

    Publicado em 06/09/2018 às 02:53 PM

    The Physics Graduate Program invites everyone to:

    Defence of M.Sc. dissertation

    Thomas Zerrenner Flórido

    ANALYSIS OF EMISSION LINES IN GALAXIES: THE DIFFUSED IONIZED GAS IN MaNGA

    Defense Commitee

    Profª. Drª. Natalia Vale Asari – (president) – UFSC/FSC
    Prof. Dr. Rogemar André Riffel – (external member) – UFSM
    Prof. Dr. Abilio Mateus Junior – (local member) – UFSC/FSC

    Date: September 12, 2018 – wednesday – Time: 2:00 p.m. – Place: Sala 202 – Departamento de Matemática


  • Defence of M.Sc. dissertation of Mateus Tomazini Kinasz – September 11, 2018 – 2:00 p.m.

    Publicado em 06/09/2018 às 10:05 AM

    The Physics Graduate Program invites everyone to:

    Defence of M.Sc. dissertation

    Mateus Tomazini Kinasz

    Defense Commitee

    Prof. Dr. Marcelo Henrique Romano Tragtenberg – (president) – UFSC/FSC
    Prof. Dr. Nuno Miguel Melo Crokidakis Peregrino – (external member) – UFF
    Prof. Dr. Nilton da Silva Branco – (local member) – UFSC/FSC

    Date: September 11, 2018 – tuesday – Time: 2:00 p.m. – Place: Sala PG-1 – Departamento de Química (subsolo)


  • Defence of M.Sc. dissertation of Laura Antonia Barth Martinez – September 5, 2018 – 9:00 a.m.

    Publicado em 31/08/2018 às 08:00 AM

    The Physics Graduate Program invites everyone to:

    Defence of M.Sc. dissertation

    Laura Antonia Barth Martinez

    Phase transition in a layered neuronal network

    Defense Commitee

    Prof. Dr. Marcelo Henrique Romano Tragtenberg – (president) – UFSC/FSC
    Prof. Dr. Marco Aurélio Pires Idiart – (external member) – UFRGS
    Prof. Dr. Germano Heinzelmann – (local member) – UFSC/FSC

    Date: September 5, 2018 – wednesday – Time: 9:00 a.m. – Place: Sala 114 – Sala de Reuniões do Departamento de Física


  • Seminar with professor Ernesto F. Galvão – August 31, 2018 (friday) – 10:15 a.m.

    Publicado em 27/08/2018 às 06:52 AM

    THE PHYSICS GRADUATE PROGRAM invites everyone to the seminar:

    Classical and quantum bounds on multi-system equality

    Ernesto F. Galvão – UFF

    Abstract:

    I will describe how we can use logic to impose constraints on the probability of the conjunction (AND) of n propositions. This is an example of logical coherence inequalities that were first investigated by George Boole (1854). By taking each proposition to be about the equality of two systems, we obtain a logical coherence condition for the joint equality of multiple systems. I will then show that quantum mechanics violates this condition, and obtain bounds for the quantum violation. This enables us to bound the value of unmeasured two-state overlaps, with applications in quantum optics and quantum information.
    This is joint work with Daniel Brod.

    Date: August 31, 2018 – (friday) – Place: Sala 212 – Auditório do Departamento de Física – Time: 10:15 a.m.


  • Defence of M.Sc. dissertation of Eduardo Lucas Lorenzon – August 28, 2018 – 10:00 a.m.

    Publicado em 23/08/2018 às 12:00 PM

    The Physics Graduate Program invites everyone to:

    Defence of M.Sc. dissertation

    Eduardo Lucas Lorenzon

    SIMULAÇÃO DE MONTE CARLO PARA A TRANSIÇÃO DE FASE DE UMA LIGA DE FERRO E PLATINA

    Defense Commitee

    Prof. Dr. Lucas Nicolao – (president) – UFSC/FSC

    Prof. Dr. Evy Augusto Salcedo Torres – (external member) – UFSC/FSC

    Prof. Dr. Marcelo Henrique Romano Tragtenberg – (local member) – UFSC/FSC

     

    Date: August 28, 2018 – tuesday – Time: 10:00 a.m. – Place: Sala 114 – Sala de Reuniões do Departamento de Física


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