Посилання:Anomalously Slow Cross Symmetry Phase Relaxation, Thermalized Non-Equilibrated Matter and Quantum Computing Beyond the Quantum Chaos Border / M. Bienert, J. Flores, S.Yu. Kun, T.H. Seligman // Symmetry, Integrability and Geometry: Methods and Applications. — 2006. — Т. 2. — Бібліогр.: 33 назв. — англ.
Підтримка:S. Kun is grateful to the organizers of the 6th International Conference “Symmetry in Nonlinear Mathematical Physics”, which took place in his beautiful home city Kyiv in June 2005, for the kind invitation and the opportunity to give a talk. We acknowledge financial support from PAPIIT project 10803 and CONACyT project 41000-F. M. Bienert is supported by a Feodor-Lynen fellowship of the Alexander-von-Humboldt foundation.
Thermalization in highly excited quantum many-body system does not necessarily mean a complete memory loss of the way the system was formed. This effect may pave a way for a quantum computing, with a large number of qubits n ≈ 100-1000, far beyond the quantum chaos border. One of the manifestations of such a thermalized non-equilibrated matter is revealed by a strong asymmetry around 90° c.m. of evaporating proton yield in the Bi(γ,p) photonuclear reaction. The effect is described in terms of anomalously slow cross symmetry phase relaxation in highly excited quantum many-body systems with exponentially large Hilbert space dimensions. In the above reaction this phase relaxation is about eight orders of magnitude slower than energy relaxation (thermalization).