- Tytuł:
- Entanglement Properties and Phase Diagram of the Two-Orbital Atomic Hubbard Model
- Autorzy:
-
Avella, A.
Mancini, F.
Scelza, G.
Chaturvedi, S. - Powiązania:
- https://bibliotekanauki.pl/articles/1813770.pdf
- Data publikacji:
- 2008-01
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
71.10.-w
71.10.Fd
71.27.+a - Opis:
- We study the two-orbital Hubbard model in the limit of vanishing kinetic energy. The phase diagram in the V-J plane, with V and J denoting the interorbital hybridization and exchange coupling respectively, at half filling is obtained. A singlet(dimer)-triplet transition is found for a critical value of the ratio V/J. The entropy of formation, both in the mode and in the particle pictures, presents a jump at the same critical line in conformity with the suggested relation between criticality and entanglement.
- Źródło:
-
Acta Physica Polonica A; 2008, 113, 1; 417-420
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł