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SIGMA 2 (2006), 027, 7 pages quant-ph/0602224
https://doi.org/10.3842/SIGMA.2006.027
Anomalously Slow Cross Symmetry Phase Relaxation, Thermalized Non-Equilibrated Matter and Quantum Computing Beyond the Quantum Chaos Border
M. Bienert a, J. Flores a, S.Yu. Kun a, b, c and T.H. Seligman a
a) Centro de Ciencias Físicas, Universidad Nacional Autónoma de México,
Cuernavaca, Morelos, Mexico
b) Nonlinear Physics Centre, RSPhysSE, ANU, Canberra ACT 0200, Australia
c) Department of Theoretical Physics, RSPhysSE, ANU, Canberra ACT 0200, Australia
Received November 30, 2005, in final form February 08, 2006; Published online February 27, 2006
Abstract
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).
Key words:
anomalously slow cross symmetry phase relaxation; Bi(γ,p) photonuclear compound reaction; quantum chaos; thermalized non-equilibrated matter; quantum computing.
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