High Temperature Universal Properties of Atomic Gases Near Feshbach Resonance with Non-Zero Orbital Angular Momentum

Original · EN

We show that the high temperature behavior of atomic gases near Feshbach Resonance with non-zero orbital angular momentum (ℓ >0) belong to a universality class different from that of s-wave resonances. The universal interaction energy is 2(2ℓ +1) times larger than that of the s-wave when approaching the resonance from the atomic side, but is essentially zero on the molecular side; contrary to s-wave resonances where interaction energies on both sides are the same except for a sign change. The measurement of these universality properties should be feasible in current experiments.