title: Achieving multifrequency mode entanglement with ultraslow multiwave mixing.
abstract: We propose a scheme to achieve the entanglement of N photon modes (frequency modes) with perfectly efficient ultraslow multiwave mixing in a cold atomic medium. In addition, the method provides an efficient approach to realizing frequency tunability.
authors.affiliation: State Key Laboratory of Laser Technology, Department of Physics, Huazhong University of Science and Technology, Wuhan 430074, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Wu
authors.forename: L
authors.initials: L
authors.lastname: Deng