Two-dimentional systems of trapped samples of few cold bosonic atoms submitted to strong
rotation around the perpendicular axis may be realized in optical lattices and microtraps. We
investigate theoretically the evolution of ground state structures of such systems as the
rotational frequency Ω increases. Various kinds of ordered structures are observed. In some
cases, hidden interference patterns exhibit themselves only in the pair correlation function;
in some other cases explicit broken-symmetry structures appear that modulate the density …

Two-dimentional systems of trapped samples of few cold bosonic atoms submitted to strong
rotation around the perpendicular axis may be realized in optical lattices and microtraps. We
investigate theoretically the evolution of ground state structures of such systems as the
rotational frequency Omega increases. Various kinds of ordered structures are observed. In
some cases, hidden interference patterns exhibit themselves only in the pair correlation
function; in some other cases explicit broken-symmetry structures appear that modulate the …