Research Interests

(click here for list of publications)

• Developing methods to find a better solution of the nuclear pairing problem. Addressing issues of particle number conservation, weak pairing limits and pairing near the continuum. Developed exact pairing (EP) solution. Studying nuclear properties near the neutron drip line using self-consistent Hartree-Fock+EP. Investigating the properties of the nuclear pairing Hamiltonian and level statistics, pair vibrations, chaos and regularities from pairing.
• Studying of regular features in Fermi and Bose systems with random interactions. Geometric chaoticity, dominance of spin zero and maximum spin ground states, interplay of statistical and collective behavior.
• Soft collective mode in nuclear systems and phase transitions. Derivation of the effective macroscopic Hamiltonian from the microscopic interactions of nucleons.
• Study of pion production in high energy heavy ion reactions via mechanisms involving dynamical chiral symmetry breaking and the formation of squeezed states. Identification and properties of the condensed pion states and resulting particle multiplicities.
• Pion production in heavy ion collisions near absolute threshold, Pionic fusion and related reactions.
• The effects of model space truncation on the eigenvalues of realistic many-body Hamiltonians (``exponential convergence'').
• Coupling of photons to a soft pionic mode in the nuclear medium.