Single-particle dissipation in a time-dependent Hartree-Fock approach studied from a phase-space perspective

Phase space structure and dynamics within the time-dependent Hartree-Fock approach

N. Loebl, A. S. Umar, J.A. Maruhn, P.-G. Reinhard, P.D. Stevenson, and V. E., Oberacker Institut fuer Theoretische Physik, Universitaet Frankfurt, D-60438 Frankfurt, Germany Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235, USA Institut fuer Theoretische Physik II, Universitaet Erlangen-Nuernberg, D-91058 Erlangen, Germany and Department of Physics, Univers...

Particle transfer reactions with the time-dependent Hartree-Fock theory using a particle number projection technique.

A particle-number projection technique is used to calculate transfer probabilities in the 16O+208Pb reaction below the fusion barrier. The time evolution of the many-body wave function is obtained with the time-dependent Hartree-Fock (TDHF) mean-field theory. The agreement with experimental data for the sum of the proton-transfer channels is good, considering that TDHF has no parameter adjusted...

Gaussian phase-space representation of fermion dynamics: Beyond the time-dependent Hartree-Fock approximation

A Gaussian operator representation for the many-body density matrix of fermionic systems, developed by Corney and Drummond Phys. Rev. Lett. 93, 260401 2004 , is used to derive approximate decoupling schemes for their dynamics. In this approach the reduced single electron density-matrix elements serve as stochastic variables which satisfy an exact Fokker-Planck equation. The number of variables ...

Continuum quasiparticle random phase approximation and the time-dependent Hartree-Fock-Bogoliubov approach

Quadrupole excitations of neutron-rich nuclei are analyzed by using the linear response method in the Quasiparticle Random Phase Approximation (QRPA). The QRPA response is derived starting from the time-dependent Hartree-Fock-Bogoliubov (HFB) equations. The residual interaction between the quasiparticles is determined consistently from the two-body force used in the HFB equations, and the conti...

Fusion process studied with preequilibrium giant dipole resonance in time dependent Hartree-Fock theory