Creagh

Complex periodic orbits in the rotational spectrum of molecules: The example of SF6.

Robbins, Littlejohn, Creagh, 1989, Physical review. A, General physics.

Semiclassical trace formulas in the presence of continuous symmetries.

Littlejohn, Creagh, 1991, Physical review. A, Atomic, molecular, and optical physics.

Geometrical properties of Maslov indices in the semiclassical trace formula for the density of states.

Robbins, Littlejohn, Creagh, 1990, Physical review. A, Atomic, molecular, and optical physics.

Complex Periodic Orbits and Tunneling in Chaotic Potentials.

Whelan, Creagh, S. C. Creagh, 1996, Physical review letters.

Uniform quantization conditions in the presence of symmetry: The rotational spectrum of SF6.

Robbins, Littlejohn, Creagh, 1990, Physical review. A, Atomic, molecular, and optical physics.