Experimentally detecting a quantum change point via the Bayesian inference
Experimentally detecting a quantum change point via the Bayesian inference
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通过贝叶斯推理实验检测量子变化点
DOI:
10.1103/physreva.98.040301
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发表时间:
2018-01
影响因子:
2.9
通讯作者:
Munoz Tapia Ramon
中科院分区:
文献类型:
--
作者:
Yu Shang;Huang Chang Jiang;Tang Jian Shun;Jia Zhih Ahn;Wang Yi Tao;Ke Zhi Jin;Liu Wei;Liu Xiao;Zhou Zong Quan;Cheng Ze Di;Xu Jin Shi;Wu Yu Chun;Zhao Yuan Yuan;Xiang Guo Yong;Li Chuan Feng;Guo Guang Can;Sentis Gael;Munoz Tapia Ramon
Detecting a change point is a crucial task in statistics that has been recently extended to the quantum realm. A source state generator that emits a series of single photons in a default state suffers an alteration at some point and starts to emit photons in a mutated state. The problem consists in identifying the point where the change took place. In this work, we consider a learning agent that applies Bayesian inference on experimental data to solve this problem. This learning machine adjusts the measurement over each photon according to the past experimental results finds the change position in an online fashion. Our results show that the local-detection success probability can be largely improved by using such a machine learning technique. This protocol provides a tool for improvement in many applications where a sequence of identical quantum states is required.
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DOI:
10.1136/bmj.323.7325.1375/a
发表时间:
2001-12
期刊:
BMJ : British Medical Journal
影响因子:
--
作者:
K. Barraclough
通讯作者:
K. Barraclough
影响因子:
64.8
作者:
Higgins, B. L.;Berry, D. W.;Pryde, G. J.
通讯作者:
Pryde, G. J.
影响因子:
8.6
作者:
Y. Burnier;A. Rothkopf
通讯作者:
Y. Burnier;A. Rothkopf
影响因子:
56.9
作者:
Carleo, Giuseppe;Troyer, Matthias
通讯作者:
Troyer, Matthias
影响因子:
8.6
作者:
Harrow, Aram W.;Hassidim, Avinatan;Lloyd, Seth
通讯作者:
Lloyd, Seth