摘要
研究了量子纠缠辅助下输入功率受限时的单模热辐射噪声信道传输经典信息的容量问题,和带有放大或衰减的单模热噪声信道的相应问题。对热噪声信道,表明了容量在输入信号为热噪声信号时达到,压缩态无助于达到信道容量CE;对带有放大或衰减的单模热噪声信道,说明了容量同样在输入为热噪声态时达到。
In this paper, we have studied the entanglement assistant capacity of single-mode heat noise channel with limited input power in which classical information is transmitted, and the same problem for those single-mode heat noise channels with amplifying and attenuating effects. For the heat noise channel, we have found that the capacity will be attained when input signal is heat noise and squeezed state is no useful for reaching the capacity. And for those single-mode heat noise channels with amplifying and attenuating effects the same result is obtained.
出处
《量子光学学报》
CSCD
2003年第3期126-130,共5页
Journal of Quantum Optics
