- Tytuł:
- Relaxation dynamics in the spin-1 Heisenberg antiferromagnetic chain after a quantum quench of the uniaxial anisotropy
- Autorzy:
-
Woźniak, D.
Drzewiński, A.
Kamieniarz, G. - Powiązania:
- https://bibliotekanauki.pl/articles/1058535.pdf
- Data publikacji:
- 2016-12
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
75.10.Jm
76.60.Es
05.30.-d
75.30.Gw - Opis:
- In the framework of the matrix product state representation the effect of a sudden turning on of the uniaxial anisotropy on the time evolution of the Haldane state has been investigated. Depending on the value of the uniaxial anisotropy parameter, the calculations were derived within (or outside) the region where the Haldane gap survives. An exact expression for the time evolution of the Loschmidt echo has been derived and, moreover, its collapse and revival behaviour was captured. In addition, the non-local order parameter of a time evolving state was tracked, revealing two types of relaxations.
- Źródło:
-
Acta Physica Polonica A; 2016, 130, 6; 1395-1400
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł