Výsledky vyhledávání - "M A Caracanhas"

Akademický článek

Autor: M A Caracanhas, F Schreck, C Morais Smith

Publikováno v: New Journal of Physics, Vol 19, Iss 11, p 115011 (2017)

One of the challenging goals in the studies of many-body physics with ultracold atoms is the creation of a topological ${p}_{x}+{{\rm{i}}{p}}_{y}$ superfluid for identical fermions in two dimensions (2D). The expectations of reaching the critical tem

Externí odkaz: https://doaj.org/article/f9d1b8c9c5af4ba1997772e83b00e613

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Superfluid vortex dynamics on a spherical film

Autor: Sálvio Jacob Bereta, M. A. Caracanhas, Alexander L. Fetter

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Motivated by ongoing experimental efforts to make closed Bose-Einstein condensate (BEC) shells in microgravity environments, this work studies the energy and dynamics of singly quantized vortices on a thin spherical superfluid shell, where the overal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71f20c8320b84e6fb4695d715dc28ef5
http://arxiv.org/abs/2101.06672

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Quantum turbulence in Bose-Einstein condensates: present status and new challenges ahead

Autor: F. E. A. dos Santos, Lucas Madeira, M. Hemmerling, M. A. Caracanhas, A. Cidrim, Vanderlei Salvador Bagnato

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

The field of quantum turbulence is related to the manifestation of turbulence in quantum fluids, such as liquid helium and ultracold gases. The concept of turbulence in quantum systems was conceived more than 70 years ago by Onsager and Feynman, but

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3378052a039b3d50e90e40f2d22d9918

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Quantum turbulence in quantum gases

Autor: F. E. A. dos Santos, M. A. Caracanhas, Vanderlei Salvador Bagnato, Lucas Madeira

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Turbulence is characterized by a large number of degrees of freedom, distributed over several length scales, that result into a disordered state of a fluid. The field of quantum turbulence deals with the manifestation of turbulence in quantum fluids,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51a199c22dd14152e16b1a96a7c85323

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Bound states in two-dimensional Fermi systems with quadratic band touching

Autor: Rodrigo G. Pereira, M. C. O. Aguiar, Flávio L. N. Santos, M. A. Caracanhas

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

The formation of bound states between mobile impurity particles and fermionic atoms has been demonstrated in spin-polarized Fermi gases with attractive interspecies interaction. We investigate bound states of mobile impurities immersed in a two-dimen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a1aa5809220d853804e9925e1ef40b00
http://arxiv.org/abs/2001.00075

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Density-dependent hopping for ultracold atoms immersed in a Bose-Einstein-condensate vortex lattice

Autor: M. A. Caracanhas, M. Di Liberto, Tommaso Comparin, R. H. Chaviguri

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Physical Review A
Physical Review A, 97 (2

Both mixtures of atomic Bose-Einstein condensates and systems with atoms trapped in optical lattices have been intensely explored theoretically, mainly due to the exceptional developments on the experimental side. We investigate the properties of ult

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8469f6238bb91bea5bf9a17cc66e5124
https://doi.org/10.1103/physreva.97.023614

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Free expansion of Bose-Einstein condensates with a multicharged vortex

Autor: Vanderlei Salvador Bagnato, Rafael Poliseli Teles, F. E. A. dos Santos, M. A. Caracanhas

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

In this work, we analyze the free expansion of Bose-Einstein condensates containing multicharged vortices. The atomic cloud is initially confined in a three-dimensional asymmetric harmonic trap. We apply both approximate variational solutions and num

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e272b20114535b5ec0eee50008e9c4d
http://arxiv.org/abs/1710.01384

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Laser cooling techniques: standard and alternated optical molasses

Autor: M. A. Caracanhas, Naomy Duarte Gomes, Vanderlei Salvador Bagnato, Kilvia Mayre Farias

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Revista Brasileira de Ensino de Física v.39 n.4 2017
Revista Brasileira de Ensino de Física
Sociedade Brasileira de Física (SBF)
instacron:SBF
Revista Brasileira de Ensino de Física, Volume: 39, Issue: 4, Article number: e4305, Published: 22 MAY 2017
Revista Brasileira de Ensino de Física, Vol 39, Iss 4

The technique of laser cooling, whose basic idea was proposed in 1975 [1], provided the development of many important areas like high-resolution spectroscopy [2], atomic clocks [3] and quantum gases confined in magnetic or optical traps [4, 5]. Among

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f14c08894a531ef7a225cba960c61dd

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Phase transition of ultracold atoms immersed in a Bose-Einstein-condensate vortex lattice

Autor: M. A. Caracanhas, R. H. Chaviguri, Vanderlei Salvador Bagnato, Tommaso Comparin

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

We investigate the quantum phases of ultracold atoms trapped in a vortex lattice using a mixture of two bosonic species ($A$ and $B$), in the presence of an artificial gauge field. Heavy atoms of species $B$ are confined in the array of vortices gene

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15bdfe3a293efac5300e9470a59f599e

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Tunable breakdown of the polaron picture for mobile impurities in a topological semimetal

Autor: M. A. Caracanhas, Rodrigo G. Pereira

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Mobile impurities in cold atomic gases constitute a new platform for investigating polaron physics. Here we show that when impurity atoms interact with a two-dimensional Fermi gas with quadratic band touching the polaron picture may either hold or br

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15558e2b049f06a900f9f6f2e2ac2315
http://arxiv.org/abs/1604.06249

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