Quantal corrections to mean-field dynamics including pairing - IN2P3 - Institut national de physique nucléaire et de physique des particules
Journal Articles Physical Review C Year : 2013

Quantal corrections to mean-field dynamics including pairing

Abstract

Extending the stochastic mean-field model by including pairing, an approach is proposed for describing evolutions of complex many-body systems in terms of an ensemble of Time-Dependent Hartree-Fock Bogoliubov trajectories which is determined by incorporating fluctuations in the initial state. Non-linear evolution of the initial fluctuations provides an approximate description of quantal correlations and fluctuations of collective observables. Since the initial-state fluctuations break the particle-number symmetry, the dynamical description in which pairing correlations play a crucial role is greatly improved as compare to the mean-field evolution. The approach is illustrated for a system of particles governed by a pairing Hamiltonian.

Dates and versions

in2p3-00796757 , version 1 (05-03-2013)

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D. Lacroix, D. Gambacurta, S. Ayik. Quantal corrections to mean-field dynamics including pairing. Physical Review C, 2013, 87, pp.061302. ⟨10.1103/PhysRevC.87.061302⟩. ⟨in2p3-00796757⟩
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