论文标题
实验性猜测与量子侧信息使用扭曲的光
Experimental Guesswork with Quantum Side Information using Twisted Light
论文作者
论文摘要
猜测是一种信息理论数量，可以看作是熵的替代安全标准。最近的工作已经在存在量子侧信息的情况下建立了猜测的理论框架，我们在理论上和实验上都扩展了这一框架。当侧面信息由BB84州及其较高维度的概括时，我们考虑猜测。有了此侧面信息，我们为每个维度计算两个不同场景的猜测。然后，我们使用Laguerre-Gauss模式进行原则证明实验，以实验计算BB84州高维概括的猜测。我们发现我们的实验结果与我们的理论预测非常吻合。这项工作表明，猜测可以是密码任务中可行的安全标准，并且可以在许多光学设置中实验访问。
The guesswork is an information-theoretic quantity which can be seen as an alternate security criterion to entropy. Recent work has established the theoretical framework for guesswork in the presence of quantum side information, which we extend both theoretically and experimentally. We consider guesswork when the side information consists of the BB84 states and their higher-dimensional generalizations. With this side information, we compute the guesswork for two different scenarios for each dimension. We then perform a proof-of-principle experiment using Laguerre-Gauss modes to experimentally compute the guesswork for higher-dimensional generalizations of the BB84 states. We find that our experimental results agree closely with our theoretical predictions. This work shows that guesswork can be a viable security criterion in cryptographic tasks, and is experimentally accessible across a number of optical setups.
