Yuan-Yuan Zhao
Research Subjects
Research Interests
Yuan-Yuan Zhao has a total of 31 co-authors. Here are the top co-authors by number of shared publications:
Guang-Can Guo
CAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China
2 shared publicationsChao Li
1 shared publication- Chao Li
Massachusetts Institute of Technology
1 shared publication - Chao Zhang
University of Science and Technology of China
1 shared publication Chuan-Feng Li
CAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China
1 shared publication- Chuan-Feng Li
Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China
1 shared publication
Latest Publications
- Open Access
Long-distance distribution of telecom energy-time entanglement generated on a silicon chip
- Open Access
- 5 January 2026
- Published by Elsevier in Smart Agricultural Technology
- Vol. 13
A lightweight deep learning model for detection of Huanglongbing disease
- 5 January 2026
- Published by Elsevier in Smart Agricultural Technology
- Vol. 13
Open AccessA lightweight deep learning model for detection of Huanglongbing disease
- 4 November 2023
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 01-03
Experimental Demonstration Advantage of Photonic Finite Automata
Finite automata have abundant applications such as finding reachability and so on. This work presents the first experimental implementation of the two-way quantum finite automaton with the optical platform and demonstrates its potential quantum advantages.
- 4 November 2023
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 01-03
Experimental Demonstration Advantage of Photonic Finite Automata
Finite automata have abundant applications such as finding reachability and so on. This work presents the first experimental implementation of the two-way quantum finite automaton with the optical platform and demonstrates its potential quantum advantages.
- 12 April 2023
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 130 (15) , 150801
Experimental Examination of Entanglement Estimates
Recently, a proper genuine multipartite entanglement measure has been found for three-qubit pure states [see Xie and Eberly, Phys. Rev. Lett. 127, 040403 (2021)], but capturing useful entanglement measures for mixed states has remained an open challenge. So far, it requires not only a full tomography in experiments, but also huge calculational labor. A leading proposal was made by Gühne, Reimpell, and Werner [ Phys. Rev. Lett. 98, 110502 (2007)], who used expectation values of entanglement witnesses to describe a lower bound estimation of entanglement. We provide here an extension that also gives genuine upper bounds of entanglement. This advance requires only the expectation value of any Hermitian operator. Moreover, we identify a class of operators that not only give good estimates, but also require a remarkably small number of experimental measurements. In this Letter, we define our approach and illustrate it by estimating entanglement measures for a number of pure and mixed states prepared in our recent experiments.- 12 April 2023
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 130 (15) , 150801
Experimental Examination of Entanglement Estimates
Recently, a proper genuine multipartite entanglement measure has been found for three-qubit pure states [see Xie and Eberly, Phys. Rev. Lett. 127, 040403 (2021)], but capturing useful entanglement measures for mixed states has remained an open challenge. So far, it requires not only a full tomography in experiments, but also huge calculational labor. A leading proposal was made by Gühne, Reimpell, and Werner [ Phys. Rev. Lett. 98, 110502 (2007)], who used expectation values of entanglement witnesses to describe a lower bound estimation of entanglement. We provide here an extension that also gives genuine upper bounds of entanglement. This advance requires only the expectation value of any Hermitian operator. Moreover, we identify a class of operators that not only give good estimates, but also require a remarkably small number of experimental measurements. In this Letter, we define our approach and illustrate it by estimating entanglement measures for a number of pure and mixed states prepared in our recent experiments.- Open Access
- 2 June 2022
- Published by Springer Nature in npj Quantum Information
- Vol. 8 (1) , 1-8
Experimental study of quantum uncertainty from lack of information
Quantum uncertainty is a well-known property of quantum mechanics that states the impossibility of predicting measurement outcomes of multiple incompatible observables simultaneously. In contrast, the uncertainty in the classical domain comes from the lack of information about the exact state of the system. One may naturally ask, whether the quantum uncertainty is indeed a fully intrinsic property of the quantum theory, or whether similar to the classical domain lack of knowledge about specific parts of the physical system might be the source of this uncertainty. This question has been addressed in the previous literature where the authors argue that in the entropic formulation of the uncertainty principle that can be illustrated using the so-called, guessing games, indeed such lack of information has a significant contribution to the arising quantum uncertainty. Here we investigate this issue experimentally by implementing the corresponding two-dimensional and three-dimensional guessing games. Our results confirm that within the guessing-game framework, the quantum uncertainty to a large extent relies on the fact that quantum information determining the key properties of the game is stored in the degrees of freedom that remain inaccessible to the guessing party. Moreover, we offer an experimentally compact method to construct the high-dimensional Fourier gate which is a major building block for various tasks in quantum computation, quantum communication, and quantum metrology.
- 2 June 2022
- Published by Springer Nature in npj Quantum Information
- Vol. 8 (1) , 1-8
Open AccessExperimental study of quantum uncertainty from lack of information
Quantum uncertainty is a well-known property of quantum mechanics that states the impossibility of predicting measurement outcomes of multiple incompatible observables simultaneously. In contrast, the uncertainty in the classical domain comes from the lack of information about the exact state of the system. One may naturally ask, whether the quantum uncertainty is indeed a fully intrinsic property of the quantum theory, or whether similar to the classical domain lack of knowledge about specific parts of the physical system might be the source of this uncertainty. This question has been addressed in the previous literature where the authors argue that in the entropic formulation of the uncertainty principle that can be illustrated using the so-called, guessing games, indeed such lack of information has a significant contribution to the arising quantum uncertainty. Here we investigate this issue experimentally by implementing the corresponding two-dimensional and three-dimensional guessing games. Our results confirm that within the guessing-game framework, the quantum uncertainty to a large extent relies on the fact that quantum information determining the key properties of the game is stored in the degrees of freedom that remain inaccessible to the guessing party. Moreover, we offer an experimentally compact method to construct the high-dimensional Fourier gate which is a major building block for various tasks in quantum computation, quantum communication, and quantum metrology.