#### Abstract

We study a class of ansatz wave functions in which composite fermions form two correlated “partitions.” These “bipartite” composite fermion states are demonstrated to be very accurate for electrons in a strong magnetic field interacting via a short-range 3-body interaction potential over a broad range of filling factors. Furthermore, this approach gives accurate approximations for the exact Coulomb ground state at $2+3/5$ and $2+4/7$ and is thus a promising candidate for the observed fractional quantum Hall states at the hole conjugate fractions at $2+2/5$ and $2+3/7$.

- Received 2 February 2011

DOI:https://doi.org/10.1103/PhysRevLett.107.086806

© 2011 American Physical Society