3 papers
nucl-th2003
Semiclassical treatment of the ground state rotational band and of the isovector angle vibration for deformed superfluid nuclei
M. Grigorescu
This work presents an older, but still interesting description of a superfluid condensate with two components (protons and neutrons), confined by time-dependent deformed harmonic o…
physics.atom-ph2003
Relativistic and QED energy shifts in positronium ion
M. Grigorescu, G. W. F. Drake
The leading relativistic and QED corrections to the ground state energy of the three-body system (epe) are calculated numerically using a Hylleraas correlated basis set. The accura…
math-ph2000
Classical phase space structure induced by spontaneous symmetry breaking
M. Grigorescu
The collective dynamics of a many-body system is described as a special case of low-energy quantum dynamics, occurring when the ground state breaks a continuous symmetry of the Ham…