A new approach to the ground state of quantum-Hall systems
  I present variational solutions of the many-body Schr\"odinger equation for a two-dimensional electron system in strong magnetic fields, which have, at $\nu=1$, the energy about 46% lower than the energy of the Laughlin liquid. At $\nu=2/3$, I obtain the energy, about 29% lower than was reported so far. 
S. A. Mikhailov