Multi-channel multiplexing quantum teleportation based on the entangled sideband modes
Yimiao Wu, Qingwei Wang, Long Tian, Xiaoli Zhang, Jiawei Wang, Shaoping Shi, Yajun Wang, Yaohui Zheng
Abstract
Quantum teleportation is a key primitive across a number of quantum information tasks and represents a fundamental ingredient for many quantum technologies. Channel capacity, other than the fidelity, becomes another focus of quantum communication. Here, we present a 5-channel multiplexing continuous-variable quantum teleportation protocol in the optical frequency comb system, exploiting five-order entangled sideband modes. Because of the resonant electro-optical modulation (EOM) that is specifically designed, the fidelities of five channels are greater than 0.78, which are superior to the no-cloning limit of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="m1"> <mml:mrow> <mml:mn>2</mml:mn> <mml:mo>/</mml:mo> <mml:mn>3</mml:mn> </mml:mrow> </mml:math> . This work provides a feasible scheme for implementing efficient quantum information processing.