Finite-temperature dynamical structure factor of alternating Heisenberg chains
We develop a low-temperature expansion for the finite-temperature dynamical structure factor of the spin half Heisenberg chain with alternating nearest-neighbor exchange in the limit of strong alternation of the exchange constants. We determine both the broadening of the low-lying triplet lines and...
Descrizione completa
Dettagli Bibliografici
| Autori principali: |
James, A,
Essler, F,
Konik, R |
|---|
| Natura: | Journal article
|
|---|
| Lingua: | English |
|---|
| Pubblicazione: |
2008
|
|---|