The Topological Non-connectivity Threshold in quantum long-range interacting spin systems

作者: F. Borgonovi , G. L. Celardo , R. Trasarti-Battistoni

DOI: 10.1140/EPJB/E2006-00035-Y

关键词:

摘要: 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 hard quantum regime. New interesting perspectives term possibility to study intriguing quantum-classical transition through Macroscopic Tunneling addressed.

参考文章(25)
Julien Barré, Freddy Bouchet, Thierry Dauxois, Stefano Ruffo, Out-of-equilibrium states as statistical equilibria of an effective dynamics in a system with long-range interactions. Physical Review Letters. ,vol. 89, pp. 110601- ,(2002) , 10.1103/PHYSREVLETT.89.110601
Jim Napolitano, Jun John Sakurai, Modern Quantum Mechanics ,(1985)
F. Borgonovi, G. L. Celardo, G. P. Berman, Quantum signatures of the classical topological nonconnectivity threshold Physical Review B. ,vol. 72, pp. 224416- ,(2005) , 10.1103/PHYSREVB.72.224416
T. Asaga, L. Benet, T. Rupp, H.A. Weidenmüller, Spectral properties of the k-body embedded Gaussian ensembles of random matrices for bosons Annals of Physics. ,vol. 298, pp. 229- 247 ,(2002) , 10.1006/APHY.2002.6253
D A Garanin, Spin tunnelling: a perturbative approach Journal of Physics A. ,vol. 24, ,(1991) , 10.1088/0305-4470/24/2/002
F. Borgonovi, G. L. Celardo, M. Maianti, E. Pedersoli, Broken Ergodicity in Classically Chaotic Spin Systems Journal of Statistical Physics. ,vol. 116, pp. 1435- 1447 ,(2004) , 10.1023/B:JOSS.0000041745.62340.00
L. Benet, T. Rupp, H. A. Weidenmüller, Nonuniversal behavior of the k-body embedded Gaussian unitary ensemble of random matrices. Physical Review Letters. ,vol. 87, pp. 010601- ,(2001) , 10.1103/PHYSREVLETT.87.010601
A. J. Leggett, Anupam Garg, Quantum mechanics versus macroscopic realism: Is the flux there when nobody looks? Physical Review Letters. ,vol. 54, pp. 857- 860 ,(1985) , 10.1103/PHYSREVLETT.54.857
M Enz, R Schilling, Magnetic field dependence of the tunnelling splitting of quantum spins Journal of Physics C: Solid State Physics. ,vol. 19, ,(1986) , 10.1088/0022-3719/19/30/005