The Graduate Program in Physics of the Federal University of Santa Catarina – UFSC – announces the list of the approved applications to the Admission Process entrance at the semester 2023/1.

Click here and have access to the registered candidates’ list and their respective situations in the admission process.

Appeals must be sent from November 21, 2022 to November 25, 2022 at 5 pm.

The Physics Graduate Program invites everyone to:

Qualifying Examination for Doctoral Thesis

Haimon Otto Melchiors Trebien

RESISTIVE SWITCHING USING LIQUID CRYSTALS AS ACTIVE LAYER

Defense Committee:

Prof. Dr. Emmanuel Gräve de Oliveira (president) – UFSC/FSC

Prof. Dr. Magno Valério Trindade Machado (titular member) – UDESC

Prof. Dr. Bruno Duarte da Silva Moreira (titular member) – UDESC

Prof. Dr. Tiago José Nunes da Silva (titular member) – UFSC/FSC

Profª. Drª. Débora Peres Menezes (supplementary member) – UFSC/FSC

Date: November 22,2022 – tuesday – Times: 10:00 a.m – Place: sala virtual da Conferência Web da Rede Nacional de Ensino e Pesquisa (RNP)

Virtual room access link: https://conferenciaweb.rnp.br/webconf/floripa-hep

THE PHYSICS GRADUATE PROGRAM invites everyone to the seminar:

Aspectos importantes de complexidade através de modelos matemáticos simples

Prof. Marcos Gomes Eleuterio da Luz

Departamento de Física, UFPR

Abstract:

Complexidade é mais um conceito amplo do que realmente um conjunto de propriedades bem estabelecidas sobre um sistema natural. Entretanto, aspectos gerais e caracteristicas claras podem ser delineadas na definição do que seja um sistema complexo. Neste seminário iremos discutir a idea universal de sistemas complexos, pontuando seus atributos mais determinantes. Modelos matemáticos muito simples serão discutidos na tentativa de exemplificar as “impressões digitais” da complexidade.

Date: November 25, 2022 – (friday) – Time: 10:15 a.m.

Local: Sala virtual do conferênciaweb da Rede Nacional de Pesquisa

The Physics Graduate Program invites everyone to:

Qualifying Examination for Doctoral Thesis

Pedro Ricardo Piccini

MODULATED PHASES IN SYSTEMS WITH COMPETING INTERACTIONS

Defense Committee:

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

Prof. Dr. Silvio Roberto de Azevedo Salinas (titular member) – IF-UFF

Prof. Dr. Paulo Murilo Castro de Oliveira (external member) – IF-UFF

Prof. Dr. Maurício Girardi Schappo (external member) – UFSC/FSC

Prof. Dr. Nilton da Silva Branco (supplementary member) – UFSC/FSC

Date: November 21, 2022 – Monday – 14:00 a.m – Place: sala virtual da Conferência Web da Rede Nacional de Ensino e Pesquisa (RNP)

Virtual room access link: https://conferenciaweb.rnp.br/webconf/pedro-ricardo-4

The Physics Graduate Program invites everyone to:

Defense of M.Sc. dissertation

João Vitor da Costa Lovato

Anomalias do modelo padrão e a possível solução de leptoquark

Defense Committee:

Prof. Dr. Emmanuel Gräve de Oliveira (president) – UFSC/FSC

Prof. Dr. Gustavo Alberto Burdman (external member) – USP

Prof. Dr. Celso de Camargo Barros Junior (titular member) – UFSC/FSC

Prof. Dr. Sidney dos Santos Avancini (supplementary member) – UFSC/FSC

Prof. Dr. Ricardo D’Elia Matheus (external member) – USP

Date: November 17,2022 – Thursday – Times: 14:30 pm – Place: Sala 114 – Sala de Reuniões do Departamento de Física

Virtual room access link: https://conferenciaweb.rnp.br/webconf/joao-vitor-costa-6

The seminar’s attendance list will only be available for in-person attendance.

THE PHYSICS GRADUATE PROGRAM invites everyone to the seminar:

Buracos negros supermassivos e seu impacto sobre a evolução das galáxias

Prof. Dr. Daniel Ruschel Dutra

Departamento de Física | UFSC

Abstract:

Sabemos que toda a galáxia possui em seu centro um buraco negro com uma massa de milhões a bilhões de vezes a massa do Sol. O acúmulo de correlações observadas entre as propriedades de bojos galáticos e dos seus respectivos buracos negros supermassivos (SMBH) sugere uma ligação entre a evolução dos dois. Simulações hidrodinâmicas demonstram que a coevolução entre ambos é uma consequência natural do fluxo de material em direção ao centro da galáxia, provocando tanto a acresção que dá origem ao núcleo galático ativo (AGN), quanto favorecendo a formação de estrelas na região circum-nuclear pelo aumento da densidade do gás. Em contrapartida, os ventos e a radiação advindas do AGN, fenômenos que em conjunto são conhecidos como feedback, podem suprimir a formação estelar, impondo um limite para a massa de estrelas do bojo, um efeito que tem se provado necessário nas simulações cosmológicas. Neste seminário apresentarei um resumo de como chegamos ao presente entendimento acerca dos SMBHs, e discutirei alguns pontos ainda não completamente esclarecidos relacionados à conexão entre o AGN e sua galáxia hospedeira, abordando principalmente três aspectos da pesquisa atual na área: i) estudos observacionais do meio interestelar e das populações estelares; ii) simulações computacionais de sistema dinâmicos; e iii) análise de AGNs que apresentam grandes variações na sua emissão em períodos de anos ou menos.

Date: November 18, 2022 – (friday) – Time: 10:15 a.m.

Local: Sala 212 – Auditório do Departamento de Física

The Physics Graduate Program invites everyone to:

Qualifying Examination for Doctoral Thesis

Lindiomar Borges de Avila Junior

RESISTIVE SWITCHING USING LIQUID CRYSTALS AS ACTIVE LAYER

Defense Committee:

Prof. Dr. Ivan Helmuth Bechtold (president) – UFSC/FSC

Profª. Drª. Maria Luisa Sartorelli (titular member) – UFSC/FSC

Profª. Drª. Juliana Eccher (titular member) – UFSC/FSC

Prof. Dr. Luis Guilherme de Carvalho Rego (titular member) – UFSC/FSC

Prof. Dr. Eduard Westphal (external member) – UFSC/QMC

Prof. Dr. Gustavo Nicolodelli (supplementary member) – UFSC/FSC

Date: November 11,2022 – Friday – Times: 8:30am – Place: Sala 114 – Sala de Reuniões do Departamento de Física

The Physics Graduate Program invites everyone to:

Defense of Doctoral Thesis

Marcos Vinicios Barp

POSITRON SCATTERING BY OPEN-SHELL ATOMS AND MOLECULES

Defense Committee:

Prof. Dr. Felipe Arretche (president) – (UFSC/FSC)

Prof. Dr. Wagner Tenfen (external member) – UFPEL

Prof. Dr. Roberto Kalbusch Saito (local member) – UFSC/FSC

Prof. Dr. Tiago José Nunes da Silva (local member) – UFSC/FSC

Prof. Dr. José Rafael Bordin (supplementary member) – ICE/UFMG

Prof. Dr. Kahio Tiberio Mazon (supplementary member) – UFSC/FSC

Date: November 11, 2022 – friday – Times: 2:00 pm – Place: sala virtual da Conferência Web da Rede Nacional de Ensino e Pesquisa (RNP)

Virtual room access link: https://conferenciaweb.rnp.br/conference/rooms/felipe-99/invite

THE PHYSICS GRADUATE PROGRAM invites everyone to the seminar:

Analytically Solvable Problems in Quantum Mechanics and SWKB Quantization Condition

Yuta Nasuda

Tokyo University of Science

Abstract:

The Schrödinger-type equation appears not only in quantum mechanics but also in every corner of physics. It has long been studied what the basic feature of solvable potentials is, and how one solves the equation with those potentials analytically. Today we know infinitely many solvable potentials, but we still have no whole notion of the solvability of the Schrödinger equation. In this seminar, we first review several essential concepts in the solvability of the Schrödinger equation: factorization of Hamiltonian, shape invariance, and so on. Then we introduce the SWKB quantization condition, which is relevant to the solvability of the Schrödinger equation. We apply the condition to several solvable problems and show how they are closely connected.

Date: November 11, 2022 – (friday) – Time: 10:15 a.m.

Local: Auditório do Departamento de Física

THE PHYSICS GRADUATE PROGRAM invites everyone to the seminar:

Optical spectroscopy: from a luminescent molecule to working OLED devices

MSc Larissa Gomes França

Department of Physics , Durham University – UK

Abstract:

Organic light-emitting diodes (OLEDs) have attracted tremendous interest from the luminescent display industry over the last years. Nowadays, this technology is already a part of peoples’ lives as being used in everyday items such as in mobile phones and televisions. Using organic semiconductors instead of the more traditional inorganic (i.e. GaN, InGaN, GaAs, etc.) introduces many technological advantages. Among them are flexibility, very low thickness of final luminescent displays as well as possibility to produce transparent displays and luminaries. In an OLED device, applied voltage bias induces injection of electrons and holes through the device cathode and anode, respectively. The charge carriers are transported through the device and migrate to the emissive layer where they recombine, generating light. Spin statistics based on the spin states of holes and electrons undergoing recombination leads to a 1:3 ratio between multiplicities of thus produced excited states: singlets and triplets. Considering that often triplet states do not contribute to the luminescent output of an OLED the efficiency of these devices becomes limited to 25% of what it could be. Mechanisms that enable turning non-emissive triplet states into luminescent singlets will be discussed in this talk. Key parameters to maximise efficiency of these mechanisms allowing 100% utilisation of all electron-hole recombination will also be covered.

Date: November 4, 2022 – (friday) – Time: 10:15 a.m.

Local: Auditório do Departamento de Física