https://doi.org/10.1140/epjb/e2006-00035-y
The topological non-connectivity threshold in quantum long-range interacting spin systems
1
Dipartimento di Matematica e Fisica, Università Cattolica, via Musei 41, 25121 Brescia, Italy
2
I.N.F.N., Sezione di Pavia, Italy
Corresponding author: a f.borgonovi@dmf.unicatt.it
Received:
13
October
2005
Revised:
23
November
2005
Published online:
8
February
2006
Quantum characteristics of the Topological Non-connectivity Threshold (TNT), introduced in [F. Borgonovi, G.L. Celardo, M. Maianti, E. Pedersoli, J. Stat. Phys. 116, 516 (2004)], have been analyzed in the hard quantum regime. New interesting perspectives in term of the possibility to study the intriguing quantum-classical transition through Macroscopic Quantum Tunneling have been addressed.
PACS: 05.45.-a – Nonlinear dynamics and nonlinear dynamical systems / 05.45.Pq – Numerical simulations of chaotic systems / 75.10.Hk – Classical spin models
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2006
