Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Boulat, Edouard"'
Autor:
Karki, D. B., Boulat, Edouard, Pouse, Winston, Goldhaber-Gordon, David, Mitchell, Andrew K., Mora, Christophe
Publikováno v:
Phys. Rev. Lett. 130, 146201 (2023)
Quantum impurity models with frustrated Kondo interactions can support quantum critical points with fractionalized excitations. Recent experiments [arXiv:2108.12691] on a circuit containing two coupled metal-semiconductor islands exhibit transport si
Externí odkaz:
http://arxiv.org/abs/2210.04937
Quantum Hall edge channels can be combined with metallic regions to fractionalize electrons and form correlated impurity models. We study a minimal device, that has been experimentally achieved quite recently, with two floating islands connected to t
Externí odkaz:
http://arxiv.org/abs/2204.08549
Autor:
Boulat, Edouard
The massless boundary sine-Gordon (SG) model is the only interacting impurity model with a known exact solution out-of-equilibrium, yet existing so far only for integer values of the sine Gordon coupling $\lambda$ [Phys. Rev. Lett. {\bf74}, 3005 (199
Externí odkaz:
http://arxiv.org/abs/1912.03872
Autor:
Boulat, Edouard
Cette thèse est consacrée à l'étude de la dégénérescence orbitale dans les systèmes d'électrons fortement corrélés à une dimension. Nous définissons un modèle simplifié, le modèle de Hubbard à symétrie SU(4), qui prend en compte de
Externí odkaz:
http://tel.archives-ouvertes.fr/tel-00006256
http://tel.archives-ouvertes.fr/docs/00/04/68/69/PDF/tel-00006256.pdf
http://tel.archives-ouvertes.fr/docs/00/04/68/69/PDF/tel-00006256.pdf
Autor:
Freton, Loïc, Boulat, Edouard
Publikováno v:
Phys. Rev. Lett. 112, 216802 (2014)
We provide an exact description of out-of-equilibrium fixed points in quantum impurity systems, that is able to treat time-dependent forcing. Building on this, we then show that analytical out-of-equilibrium results, that exactly treat interactions,
Externí odkaz:
http://arxiv.org/abs/1303.7441
Publikováno v:
Nuclear Physics B 874 (2013) 279-311
In this paper we develop a method to describe perturbatively the entanglement entropy in a simple impurity model, the interacting resonant level model (IRLM), at low energy (i.e. in the strong coupling regime). We use integrability results or the Kon
Externí odkaz:
http://arxiv.org/abs/1301.6535
Publikováno v:
Mod. Phys. Lett. B, 25 (2011) 955-962
The phase diagram of one-dimensional earth-alkaline fermionic atoms and ytterbium 171 atoms is investigated by means of a low-energy approach and density-matrix renormalization group calculations. For incommensurate filling, four gapless phases with
Externí odkaz:
http://arxiv.org/abs/1012.2036
Publikováno v:
Phys. Rev. B69, 155109 (2004)
The one-dimensional SU(4) Hubbard model perturbed by Hund coupling is studied, away from half-filling, by means of renormalization group and bosonization methods. A spectral gap is always present in the spin-orbital sector irrespective of the magnitu
Externí odkaz:
http://arxiv.org/abs/cond-mat/0310003
Publikováno v:
Phys. Rev. B61, 12112 (2000)
We study the effect of symmetry breaking perturbations in the one-dimensional SU(4) spin-orbital model. We allow the exchange in spin ($J_1$) and orbital ($J_2$) channel to be different and thus reduce the symmetry to SU(2) $\otimes$ SU(2). A magneti
Externí odkaz:
http://arxiv.org/abs/cond-mat/9910218
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.