1998/07/01 by W. Wen, P. Chau Huu-Tai, D. Lacroix +2
Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Quantum #Quantum dynamics #Quantum fluctuation #Quantum many-body systems #Quantum system #Spontaneous symmetry breaking #Statistical Mechanics and Entropy #Statistical fluctuations #Symmetry (geometry) #Symmetry breaking #nucl-th
paper · pdf · doi:10.1016/s0375-9474(98)00225-5
published as Nucl.Phys. A637 (1998) 15-30 · 19 Latex pages including 6 figures
openalex publication_date 1998/07/01 · arxiv created 1998/10/14 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Dynamical symmetry breaking in an expanding nuclear system is investigated in semi-classical and quantum framework by employing a collective transport model which is constructed to mimic the collective behavior of expanding systems. It is shown that the fluctuations in collective coordinates during the expansion are developed mainly by the enhancement of the initial fluctuations by the driving force, and that statistical and quantum fluctuations have similar consequences. It is pointed out that the quantal fluctuations may play an important role in the development of instabilities by reducing the time needed to break the symmetry, and the possible role of quantal fluctuations in spinodal decomposition of nuclei is discussed.