典型文献
Experimental investigation of quantum discord in DQC1
文献摘要：
Quantum discord has been proposed as a resource responsible for the exponential speedup in deterministic quantum computation with one pure qubit (DQC1). Investigation of the quantum discord generated in DQC1 is of signific-ant importance from a fundamental perspective. However, in practical applications of DQC1, qubits generally interact with the environment. Thus, it is also important to investigate the discord when DQC1 is implemented in a noisy environment. We implement DQC1 on an electron spin resonance (ESR) architecture in such an environment and nonzero quantum dis-cord is observed. Furthermore, we find that the values of discord correspond to the values of purity α and quantum Fisher information, which reflect the power of the algorithm. Our results provide further evidence for the role of discord as a re-source in DQC1 and are beneficial for understanding the origin of the power of quantum algorithms.
文献关键词：
中图分类号：
作者姓名：
Tingwei Li;Yang Wu;Fangzhou Jin;Xing Rong
作者机构：
CAS Key Laboratory of Microscale Magnetic Resonance and School of Physical Sciences,University of Science and Technology of China,Hefei 230026,China;CAS Center for Excellence in Quantum Information and Quantum Physics,University of Science and Technology of China,Hefei 230026,China;Department of Fundamental Subjects,Wuchang Shouyi University,Wuhan 430064,China
文献出处：
引用格式：
[1]Tingwei Li;Yang Wu;Fangzhou Jin;Xing Rong-.Experimental investigation of quantum discord in DQC1)[J].中国科学技术大学学报,2022(04):8-14
A类：
DQC1
B类：
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AB值：
0.501559
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