Motivation May, 2007, Postdoc interview talk Ultracold polar molecules High precision spectroscopy a Quantum computing a Molecular quantum degeneracy Collisions and reactions with oriented molecules a vibrational quenching:KRb(v")→>KRb(v”1) a exchange reaction: KRb+K>K2+rb Krb+Krb >K2 rb, 2/3/20212/3/2021 2 Motivation Ultracold Polar molecules: n High precision spectroscopy n Quantum computing n Molecular quantum degeneracy n Collisions and reactions with oriented molecules: q vibrational quenching: KRb (v")  KRb (v"-1) q exchange reaction: KRb + K  K2 + Rb, KRb + KRb  K2 + Rb2 May, 2007, Postdoc interview talk