The Physics Graduate Program invites everyone to:
Defense of M.Sc. dissertation
Luiz Carlos Kubaski Medeiros
ELECTRICALLY CHARGED COMPACT Q-BALLS AND Q-SHELLS IN A MULTI COMPONENT CPN MODEL
Defense Committee:
Prof. Dr. Pawel Klimas (president) – UFSC/FSC
Prof. Dr. Paulo Eduardo Gonçalves de Assis (external member) – UFCAT
Prof. Dr. Gabriel Luchini Martins (external member) – UFES
Prof. Dr. Sidney dos Santos Avancini (supplementary member) – UFSC/FSC
Date: July 15, 2022 – friday – Times: 1:00 pm – Place: sala virtual Conferência Web da Rede Nacional de Ensino e Pesquisa (RNP)
Virtual room access link: https://conferenciaweb.rnp.br/webconf/defesa-de-mestrado-luiz-kubaski
The Physics Graduate Program invites everyone to:
Defense of Doctoral Thesis
André Gustavo de Oliveira
INTERACTION OF SCALAR AND VECTOR OPTICAL VORTICES IN STIMULATED PARAMETRIC DOWN-CONVERSION
Defense Committee:
Prof. Dr. Paulo Henrique Souto Ribeiro – (president) – (UFSC/FSC)
Prof. Dr. Cid Bartolomeu de Araújo – (external member) – UFPE
Prof. Dr. Ismael Andre Heisler – (external member) – UFPR
Prof. Dr. José Augusto Oliveira Huguenin – (external member) – UFF
Prof. Dr. Eduardo Cerutti Mattei – (supplementary member) – UFSC/FSC
Prof. Dr. Ivan Helmuth Bechtold – (supplementary member) – UFSC/FSC
Date: July 15, 2022 – friday – Times: 9:00 am – Place: por intermédio da plataforma ZOOM
Virtual room access link: https://us02web.zoom.us/j/87019953488?pwd=aGVVa3VkbCtnOEYyK2tLSHhUVDVyUT09
The Physics Graduate Program invites everyone to:
Qualifying Examination for Doctoral Thesis
Fernando Miguel Hahne
INTERACTION OF COMPACT SOLUTIONS IN MODELS WITH NON ANALYTIC POTENTIAL
Defense Committee:
Prof. Dr. Pawel Klimas – (president) – UFSC/FSC
Prof. Dr. Paulo Eduardo Gonçalves de Assis – (titular member) – UFCAT
Prof. Dr. Gabriel Luchini Martins – (titular member) – UFES
Prof. Dr. Tiago José Nunes da Silva – (local member) – UFSC/FSC
Date: June 29, 2022 – wednesday – Times: 1:00 pm – Place: sala virtual da Conferência Web da Rede Nacional de Ensino e Pesquisa (RNP)
Virtual room access link: https://conferenciaweb.rnp.br/webconf/qualificacao-fernando-miguel-hahne
The Physics Graduate Program invites everyone to:
Defense of Doctoral Thesis
Artur Marx Andermann
THEORETICAL STUDY OF THE CHARGE PHOTOGENERATION PROCESS IN ORGANIC INTERAFACES
Defense Committee:
Prof. Dr. Luis Guilherme de Carvalho Rego – (president) – (UFSC/FSC)
Prof. Dr. Marlus Koehler – (external member) – UFPR
Prof. Dr. Graziani Candiotto – (external member) – UFRJ
Prof. Dr. Ivan Helmuth Bechtold – (local member) – UFSC/FSC
Prof. Dr. Kahio Tiberio Mazon – (local member) – UFSC/FSC
Prof. Dr. Lucas Nicolao – (supplementary member) – UFSC/FSC
Date: June 24, 2022 – friday – Times: 9:00 am – Place: sala virtual da Conferência Web da Rede Nacional de Ensino e Pesquisa (RNP)
Virtual room access link: https://conferenciaweb.rnp.br/events/defesa-de-tese-de-artur-marx-andermann
THE PHYSICS GRADUATE PROGRAM invites everyone to the seminar:
Exploring quantum quasi-crystal patterns: A variational approach
Prof. Dr. Alejandro Mendoza Coto
UFSC/FSC
Abstract:
In the present seminar I will discuss the emergence of quasicrystal configurations in the ground-state phase diagram of bosonic systems interacting through pair potentials of Lifshitz’s type. By using a variational mean-field approach, we determine the relevant features of the corresponding potential interaction kind stabilizing such quasicrystalline states in two dimensions. Unlike their classical counterpart, in which the interplay between only two wave vectors determines the resulting symmetries of the solutions, the quantum picture relates in a more complex way to the instabilities of the homogeneous phase. Moreover, the quantum quasicrystal patterns are found to emerge as the ground state with no need of moderate thermal fluctuations. The study extends to the exploration of the excitation properties and the possible existence of superquasicrystals, i.e., supersolidlike quasicrystalline states in which the long-range nonperiodic density profile coexists with a nonzero superfluid fraction. Our calculations suggest that, in an intermediate region between the homogeneous superfluid and the normal quasicrystal phases, these exotic states indeed exist at zero temperature. Comparison with full numerical simulations provides a solid verification of the variational approach adopted in this paper.
Date: June 3, 2022 – (friday) – Time: 10:15 a.m.
link to access the youtube channel: https://youtu.be/st0dUS-X4FQ
