论文标题
降低与非标准相干状态结合的Helstrom
Lowering Helstrom Bound with non-standard coherent states
论文作者
论文摘要
在量子信息处理中，{使用接收器设备区分两个非正交状态，导致量子误差概率。最小可能的误差称为helstrom绑定。在这项工作中，我们研究和比较了概括格劳伯 - 苏德山连贯状态的量子限制，例如非线性，Perelomov，Barut-Girardello和（修改的）Susskind-Glogower相干状态。对于其中一些，我们表明，在特定方案中，HELSTROM绑定可以大大降低甚至消失。
In quantum information processing, {using a receiver device to differentiate between two nonorthogonal states leads to a quantum error probability. The minimum possible error is} known as the Helstrom bound. In this work we study and compare quantum limits for states which generalize the Glauber-Sudarshan coherent states, like non-linear, Perelomov, Barut-Girardello, and (modified) Susskind-Glogower coherent states. For some of these, we show that the Helstrom bound can be significantly lowered and even vanish in specific regimes.
