Graduate Program in Physics at UFSC, Florianópolis

 The Physics Graduate Program invites everyone to:

Defence of M.Sc. dissertation

 Susane Calegari

 INVARIÂNCIA CONFORME NA FÍSICA

Defense Commitee

 Prof. Dr. Jeferson de Lima Tomazelli – (president) – UFSC/FSC

Prof. Dr. Eliezer Baptista – (external member) – UFSC/MTM

Prof. Dr. Pawel Klimas – (local member) – UFSC/FSC

Dr. Rodrigo Turcati – (local member) – UFSC/FSC

Prof. Dr. Paulo Juliano Liebgott – (supplementary member) – UFSC/FSC

Date: 4/April/2017 – friday – Time: 10:00 am – Place: Sala 114 – Sala de Reuniões do Departamento de Física

THE PHYSICS GRADUATE PROGRAM invites everyone to the seminar: 

  Quase-Integrabilidade 

Prof. Dr. Pawel Klimas – FSC/UFSC

Abstract:

Os modelos integráveis em física possuem propriedades matemáticas muito especiais o que faz com que os mesmos sejam muito raros. Uma destas propriedades manifesta-se na existência de soluções chamadas sólitons. Os sólitons propagam-se sem dispersão, e quando colidem não geram radiação. Esta propriedade é bem entendida dentro de formalismo matemático que descreve teorias integráveis. Os sólitons aparecem em grande abundância em muitas áreas da física: teoria de campos, óptica não-linear (fibras ópticas), cadeias de spin e até em cadeias de DNA. Os sólitons observados na natureza comportam-se de maneira muito parecida aos sólitons ideais em modelos integráveis. Isto leva à hipótese de que a natureza pode ser descrita por deformações de modelos integráveis, que apesar de perderem a integrabilidade, ainda preservam as características principais dos modelos integráveis. Este fenômeno foi chamado de quase-integrabilidade e foi testado em alguns modelos, como por exemplo, o modelo modificado de Schrodinger não-linear. Neste seminário será apresentada uma visão geral deste fenômeno e a sua ilustração, tomando-se como exemplo o modelo de Toda afim com dois campos.

Date: 31/March/217 – (friday) – Place: Sala 212 – Auditório do Departamento de Física- Time: 10h15min

The Physics Graduate Program invites everyone to:

 Qualifying Examination for Doctoral Thesis

 Giovanni Formighieri

 Esferoides compactos em alta rotação com campos magnéticos intensos

Defense Committee:

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

Prof. Dr. Alexandre Magno Silva Santos – (local member) – UFSC/FSC

Prof. Dr. José Ricardo Marinelli – (local member) – UFSC/FSC

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

Date: 31/March/21017 – friday – Time: 3:30 pm – Place: Sala 114 – Sala de Reuniões do Departamento de Física

The Physics Graduate Program invites everyone to:

 Defense of Doctoral Thesis

 Bruno Pavani Bertolino

MODELOS EFETIVOS SOB A AÇÃO DE CAMPOS MAGNÉTICOS FORTES NO FORMALISMO DE VLASOV

Defense Committee:

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

Prof. Dr. Clebson Abati Graeff – (external member) – UTFPR/Pato Branco

Prof. Dr. Rafael Camargo Rodrigues de Lima – (external member) – UDESC

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

Prof. Dr. José Ricardo Marinelli – (local member) – UFSC/FSC

Prof. Dr. Alexandre Magano Silva Santos – (local member) – UFSC/FSC

Date: 24/March/2017 – friday – Times: 9:30 am – Place: Sala 212 – Auditório do Departamento de Física

The Physics Graduate Program invites everyone to:

Defence of M.Sc. dissertation

 Letícia Martendal

 EXCITAÇÃO VIBRACIONAL NA MOLÉCULA DE N2 POR IMPACTO DE ELÉTRONS

Defense Commitee

 Prof. Dr. Kahio Tibério Mazon – (president) – UFSC/FSC

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

Prof. Dr. Sérgio Eduardo Michelin – (local member) – UFSC/FSC

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

Prof. Dr. Felipe Arretche – (supplementary member) – UFSC/FSC

Date: 22/March/2017 – wednesday – Time: 2:00 pm – Place: Sala 202 – Departamento de Matemática

The Physics Graduate Program invites everyone to:

 Defence of M.Sc. dissertation

  Kewin Sachtleben

 ESTUDOS DE EFEITOS NÃO ADIABÁTICOS EM DINÂMICA QUÂNTICA

Defense Commitee

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

Prof. Dr. José Arruda de Oliveira Freire – (external member) – DF/UFPR

Prof. Dr. Eduardo Cerutti Mattei – (local member) – UFSC/FSC

Prof. Dr. Bruno Gouvêa Taketani – (local member) – UFSC/FSC

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

Date: 17/March/2017 – friday – Time: 9:00 am – Place: Sala 212 – Auditório do Departamento de Física

The Physics Graduate Program invites everyone to:

Qualifying Examination for Doctoral Thesis

 Pedro Ricardo Piccini

 FASES MODULADAS EM SISTEMAS COM INTERAÇÕES COMPETITIVAS

Defense Committee:

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

Prof. Dr. Daniel Adrián Stariolo – (local member) – UFF

Prof. Dr. Wagner Figueiredo – (local member) – UFSC/FSC

Prof. Dr. Alejandro Mendoza Coto – (local member) – UFSC/FSC

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

Date: 17/March/2018 – wednesday – Time: 3:30 pm – Place: Sala 114 – Sala de Reuniões do Departamento de Física

The Physics Graduate Program invites everyone to:

Qualifying Examination for Doctoral Thesis

 Ariel Werle

 Análise Simultânea de Espectros Ópticos e Fotometria Ultravioleta com o STARLIGHT

Defense Committee:

 Prof. Dr. Roberto Cid Fernandes Junior – (president) – UFSC/FSC

Prof. Dr. Reinaldo Ramos de Carvalho – (local member) – INPE

Prof. Dr. Abilio Mateus Junior – (local member) – UFSC/FSC

Profª. Drª. Natalia Vale Asari – (local member) – UFSC/FSC

Dr. André Luiz de Amorim – (supplementary member) – UFSC/FSC

Date: 15/March/2017 – wednesday – Time: 2:00 pm – Place: Sala 114 – Sala de Reuniões do Departamento de Física

 THE PHYSICS GRADUATE PROGRAM invites everyone to the seminar: 

  Memristors: a primer and perspectives 

Prof. Dr. Gilberto Medeiros

UFMG

 Abstract:

Memristors are one class of devices that cannot be described or emulated by association of resistors, capacitors and inductors. A pinched hysteresis is usually the fingerprint of memristive behaviour [1,2]. Beyond simple modelling presented in the early 70s [1,2], significant experimental progress has been achieved, to the point where now there are several companies and research teams working with these devices in a number of applications ranging from neuromorphic computing [3,4] to non-volatile memories [5]. Here I will discuss the anatomy of conductive channels in memristors, by means of structural and chemical characterization afterproper identification through pressure modulated conductance experiments [6]. Subsequently, the upper limits of switching speeds of these devices will be discussed [7], as well as our modelling results [8]. Finally, complementing the modelling picture I will conclude showing our latest results on noise characteristics of these intriguing devices [9].

References

[1] L. O. Chua, “Memristor – missing circuit element”. IEEE Trans. Circuit Theory CT-18, 507-519 (1971).

[2] L. O. Chua, & S. M. Kang, “Memristive devices and systems”. Proceedings of the IEEE 64,209-223 (1976).

[3] M. Prezioso, et al. “Training and operation of an integrated neuromorphic network basedon metal-oxide memristors”, Nature 521, 61-64 (2015).

[4] J.J. Yang, D.B. Strukov & D.R. Stewart, “Memristive devices for computing”, Nature Nanotech. 8, 13-24 (2013).

[5] for example, http://www.crossbar-inc.com/

[6] F. Miao et al., “Anatomy of a Nanoscale Conduction Channel Reveals the Mechanism of a High-Performance Memristor”, Adv. Mater. 23, 5633-5640 (2011).

[7] A. C. Torrezan, J. P. Strachan, G. Medeiros-Ribeiro, & R.S. Williams, “Sub-nanosecondswitching of a tantalum oxide memristor”, Nanotechnology 22, 485203 (2011).

[8] J.P. Strachan, et al. “State Dynamics and Modeling of Tantalum Oxide Memristors”, IEEETransactions on Electron Devices 60, 2194-2202 (2013).

[9] W. Yi, et al., “Quantized Conductance coincides with State Instability and Excess Noise inTantalum Oxide Memristors”, Nature Communications, in press.

Date: 17/March/2017 – (friday) – Place: Sala 212 – Auditório do Departamento de Física- Time: 10h15min

RESULT OF THE SELECTION FOR HIRING OF FOREIGN VISITING PROFESSOR AT THE GRADUATE PROBRAM OF PHYSICS 

On the March 8^th, 2017, at 9:00am, in the Meeting Room of the Coordination of the Graduate Program in Physics, the Committee of the Selective Process for hiring of foreign visiting professor, referring to EDITAL N^o.39/DDP/ PRODEGESP/2016, formed through the ordinance no.08/PPGFSC/2017, of FEBRUARY 16th, 2017, in order to establish the final result of the selection process for hiring of foreign visiting professor in the scope of the Graduate Program of Physics. Based on the analysis of the documentation submitted by the candidates, the evaluation was carried out in accordance with the norms expressed in the mentioned EDITAL, giving a score of 10 (ten) for the highest score achieved and the scores of the other candidates calculated proportionally from their score obtained. The candidate with a final score equal to or greater than 7 (seven) was considered approved. Below is the result:

Final Result

The resources regarding the final result must be sent to the e-mail until 5:00 pm on March 11, 2017