Resonant cancellation of off-resonant effects in a multilevel qubit
Lin Tian and Seth Lloyd
Phys. Rev. A 62, 050301(R) (2000) - Published 16 October, 2000
Entangled webs: Tight bound for symmetric sharing of entanglement
Masato Koashi, Vladimír Bužek, and Nobuyuki Imoto
Phys. Rev. A 62, 050302(R) (2000) - Published 16 October, 2000