Zobrazeno 1 - 10
of 344
pro vyhledávání: '"Wigner localization"'
Autor:
Quan, Xue, Chen, Huajie
The Wigner localization is an electron phase at low densities when the electrons are sharply localized around equilibrium positions. The simulation of the Wigner localization phenomenon requires careful treatment of the many-body correlations, as the
Externí odkaz:
http://arxiv.org/abs/2208.07526
Autor:
Telleria-Allika, Xabier, Azor, Miguel Escobar, François, Grégoire, Bendazzoli, Gian Luigi, Matxain, Jon M., Lopez, Xabier, Evangelisti, Stefano, Berger, J. Arjan
approaches. We demonstrate that the Wigner regime can be reached using small values of the confinement parameter. To obtain physical insight in our results we analyze them with a semi-analytical model for two electrons. Thanks to electronic-structure
Externí odkaz:
http://arxiv.org/abs/2207.12014
In this work we investigate the Wigner localization of two interacting electrons at very low density in two and three dimensions using the exact diagonalization of the many-body Hamiltonian. We use our recently developed method based on Clifford peri
Externí odkaz:
http://arxiv.org/abs/2107.05321
Autor:
Quan, Xue, Chen, Huajie
Publikováno v:
In Journal of Computational Physics 15 September 2023 489
Autor:
Escobar Azor, Miguel1,2 (AUTHOR), Alves, Estefania3 (AUTHOR), Evangelisti, Stefano1 (AUTHOR), Berger, J. Arjan1,2 (AUTHOR) arjan.berger@irsamc.ups-tlse.fr
Publikováno v:
Journal of Chemical Physics. 9/28/2021, Vol. 155 Issue 12, p1-11. 11p.
Publikováno v:
Physical Review B 90,125446 (2014)
In spite of unscreened Coulomb interactions close to charge neutrality, relativistic massless electrons in graphene allegedly behave as noninteracting particles. A clue to this paradox is that both interaction and kinetic energies scale with particle
Externí odkaz:
http://arxiv.org/abs/1405.7610
Autor:
Secchi, Andrea, Rontani, Massimo
Publikováno v:
Physical Review B 85, 121410(R) (2012)
We demonstrate that the profile of the space-resolved spectral function at finite temperature provides a signature of Wigner localization for electrons in quantum wires and semiconducting carbon nanotubes. Our numerical evidence is based on the exact
Externí odkaz:
http://arxiv.org/abs/1109.4555
Publikováno v:
Phys. Rev. B 84, 235117 (2011)
We investigate quantum dots with Rashba spin-orbit coupling in the strongly-correlated regime. We show that the presence of the Rashba interaction enhances the Wigner localization in these systems, making it achievable for higher densities than those
Externí odkaz:
http://arxiv.org/abs/1108.0512
Publikováno v:
Phys. Rev. B 89, 125106 (2014)
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
Externí odkaz:
http://arxiv.org/abs/1311.6011
Autor:
Kristinsdóttir, L. H., Cremon, J. C., Nilsson, H. A., Xu, H. Q., Samuelson, L., Linke, H., Wacker, A., Reimann, S. M.
Publikováno v:
Physical Review B 83, 041101 (R) (2011)
It was predicted by Wigner in 1934 that the electron gas will undergo a transition to a crystallized state when its density is very low. Whereas significant progress has been made towards the detection of electronic Wigner states, their clear and dir
Externí odkaz:
http://arxiv.org/abs/1010.5147