Výsledky vyhledávání - "Francesc Malet"

Wigner-localized states in spin-orbit-coupled bosonic ultracold atoms with dipolar interaction

Autor: Francesc Malet, Stephanie Reimann, Jonas Cremon, Elife Karabulut, Yousef Yousefi

Publikováno v: The European Physical Journal Special Topics. 224:545-551

We investigate the occurence of Wigner-localization phenomena in bosonic dipolar ultracold few-body systems with Rashba-like spin-orbit coupling. We show that the latter strongly enhances the effects of the dipole-dipole interactions, allowing to rea

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1732c4d395cbe6252a9c4b7b589b0b62
https://doi.org/10.1140/epjst/e2015-02385-y

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Spin-orbit-coupled Bose-Einstein-condensed atoms confined in annular potentials

Autor: Elife Karabulut, Georgios Kavoulakis, Stephanie Reimann, Alexander L. Fetter, Francesc Malet

WOS: 000372365300002
A spin-orbit-coupled Bose-Einstein-condensed cloud of atoms confined in an annular trapping potential shows a variety of phases that we investigate in the present study. Starting with the non-interacting problem, the homogen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::efae5017db58fa84db05651ada33f037
https://hdl.handle.net/20.500.12395/34025

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Magnetic‐field‐induced electron transitions in concentric double quantum rings

Autor: Martí Pi, José María Escartín, Manuel Barranco, Francesc Malet

Publikováno v: physica status solidi c. 7:2608-2611

Within local spin-density functional theory, we show that changes in the intensity of a magnetic field perpendicularly applied to a few-electron concentric double quantum ring may alter the electron distribution in the constituent rings producing an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c408cfe180cce66e56ab87ceab1b2fd7
https://doi.org/10.1002/pssc.200983802

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Density-Functional Theory for Strongly Correlated Bosonic and Fermionic Ultracold Dipolar and Ionic Gases

Autor: Francesc Malet, Paola Gori-Giorgi, Johannes Bjerlin, Elife Karabulut, Stephanie Reimann, André Mirtschink, Christian B. Mendl

Publikováno v: Physical Review Letters. 115

We introduce a density functional formalism to study the ground-state properties of strongly-correlated dipolar and ionic ultracold bosonic and fermionic gases, based on the self-consistent combination of the weak and the strong coupling limits. Cont

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ca638bcbaaa91256deae7de77142d19
https://doi.org/10.1103/physrevlett.115.033006

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Exchange-correlation functionals from the strongly-interacting limit of DFT: Applications to model chemical systems

Autor: Francesc Malet, André Mirtschink, Paola Gori-Giorgi, Klaas J. H. Giesbertz, Lucas O. Wagner

Publikováno v: Physical Chemistry Chemical Physics-PCCP, 16. The Royal Society of Chemistry
Malet, F, Mirtschink, A P, Giesbertz, K J H, Wagner, L O & Gori-Giorgi, P 2014, ' Exchange-Correlation Functionals From the Strongly-Interacting Limit of DFT: Applications to Model Chemical Systems ', Physical Chemistry Chemical Physics-PCCP, vol. 16 . https://doi.org/10.1039/c4cp00407h

We study model one-dimensional chemical systems (representative of their three-dimensional counterparts) using the strictly-correlated electrons (SCE) functional, which, by construction, becomes asymptotically exact in the limit of infinite coupling

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e1184c26c537181229738f1932176cd
http://arxiv.org/abs/1401.7822

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Electron localization in few-electron concentric quantum rings

Autor: Francesc Malet, José María Escartín, Martí Pi, Manuel Barranco

Publikováno v: Physica E: Low-dimensional Systems and Nanostructures. 42:841-843

We investigate electron localization in fully spin-polarized few-electron concentric double quantum rings submitted to a perpendicular magnetic field by means of density functional theory and exact diagonalization calculations. The variation of the a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::032602145b1664c90e30728bfeb3a403
https://doi.org/10.1016/j.physe.2009.10.048

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Phase diagram of a rapidly rotating two-component Bose gas

Autor: Georgios Kavoulakis, Francesc Malet, Stephanie Reimann, Elife Karabulut

Publikováno v: Physical Review A. 87

We derive analytically the phase diagram of a two-component Bose gas confined in an anharmonic potential, which becomes exact and universal in the limit of weak interactions and small anharmonicity of the trapping potential. The transitions between t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6015ac6cc93e9cd152460e36463b251c
https://doi.org/10.1103/physreva.87.043609

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Rotational properties of nondipolar and dipolar Bose-Einstein condensates confined in annular potentials

Autor: Georgios Kavoulakis, Francesc Malet, Elife Karabulut, Stephanie Reimann

Publikováno v: Physical Review A. 87

We investigate the rotational response of both non-dipolar and dipolar Bose-Einstein condensates confined in an annular potential. For the non-dipolar case we identify certain critical rotational frequencies associated with the formation of vortices.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03318d601a6c38e96b8ea148935cc50b
https://doi.org/10.1103/physreva.87.033615

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Wigner localization in quantum dots from Kohn-Sham density functional theory without symmetry breaking

Autor: Christian B. Mendl, Paola Gori-Giorgi, Francesc Malet

Publikováno v: Mendl, C B, Malet Giralt, F & Gori Giorgi, P 2014, ' Wigner Localization in Quantum Dots from Kohn-Sham Density Functional Theory Without Symmetry Breaking ', Physical Review B. Condensed Matter and Materials Physics, vol. 89, pp. 125106 . https://doi.org/10.1103/PhysRevB.89.125106
Physical Review B. Condensed Matter and Materials Physics, 89. American Physical Society

We address low-density two-dimensional circular quantum dots with spin-restricted Kohn-Sham density functional theory. By using an exchange-correlation functional that encodes the effects of the strongly-correlated regime (and that becomes exact in t

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Kohn-Sham density functional theory for quantum wires in arbitrary correlation regimes

Autor: Francesc Malet, Paola Gori-Giorgi, Jonas Cremon, André Mirtschink, Stephanie Reimann

Publikováno v: Malet, F, Mirtschink, A P, Cremon, J C, Reimann, S M & Gori Giorgi, P 2013, ' Kohn-Sham density functional theory for quantum wires in arbitrary correlation regimes ', Physical Review B. Condensed Matter and Materials Physics, vol. 87, no. 11, 115146 . https://doi.org/10.1103/PhysRevB.87.115146
Physical Review B. Condensed Matter and Materials Physics, 87(11):115146. American Physical Society

We use the exact strong-interaction limit of the Hohenberg-Kohn energy density functional to construct an approximation for the exchange-correlation term of the Kohn-Sham approach. The resulting exchange-correlation potential is able to capture the f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6227f2635198d2320bb5e2f889564ea
https://research.vu.nl/en/publications/8e4deab6-e0ed-433e-b493-83f01846162d

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