Dynamics of quantum spin chains and multi-fermion excitation continua
✍ Scribed by O. Derzhko; T. Krokhmalskii; J. Stolze; G. Müller
- Book ID
- 108239145
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 173 KB
- Volume
- 378-380
- Category
- Article
- ISSN
- 0921-4526
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📜 SIMILAR VOLUMES
We investigate the Hamiltonian dynamics of two low-dimensional quantum spin systems in a random ÿeld, at the inÿnite-temperature limit: the XY chain and the two-leg XY ladder with interchain Ising interactions. We determine the longitudinal spin autocorrelation functions of the spin-1 2 XY chain and
Multiple quantum spin dynamics is studied using analytical and numerical methods for one-dimensional finite systems of nuclear spins 12 coupled by dipole-dipole interactions at low temperatures. Exact expressions for intensities of multiple quantum coherences at low temperatures were obtained in the