48 citations · 171 across the 15 of their papers we have counts for
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Two measurement bases are asymptotically informationally complete for any pure state tomography
Tianfeng Feng, Tianqi Xiao, Yu Wang +6
One of the fundamental questions in quantum information theory is to find how many measurement bases are required to obtain the full information of a quantum state. While a minimum…
Efficient Evaluation of Optical Quantum Modules via Two-Photon High-Dimensional Interference
Xiaoqian Zhang, Maolin Luo, Xiaoqi Zhou
The rapid advancement of quantum information technology has increased the demand for precise testing and calibration of quantum modules, especially in optical quantum circuits wher…
Quantum Correlation Sharing: A Review On Recent Progress From Nonlocality To Other Non-Classical Correlations
Zinuo Cai, Changliang Ren, Tianfeng Feng +2
This review offers a comprehensive exploration and synthesis of recent advancements in the domain of quantum correlation sharing facilitated through sequential measurements. We ini…
State Transfer and Entanglement between Two- and Four-Level Atoms in A Cavity
Si-Wu Li, Tianfeng Feng, Xiao-Long Hu +2
Qudits with a large Hilbert space to host quantum information are widely utilized in various applications, such as quantum simulation and quantum computation, but the manipulation…
Experimental realization of a three-photon asymmetric maximally entangled state and its application to quantum teleportation
Linxiang Zhou, Qiao Xu, Tianfeng Feng +1
Quantum entanglement is a fundamental resource for quantum information processing and is widely used in quantum communication, quantum computation and quantum metrology. Early rese…
Experimental demonstration of the criterion for the prepare-and-measure nonclassicality
Maolin Luo, Xiaoqian Zhang, Xiaoqi Zhou
The prepare-and-measure theory is a new type of quantum paradox that reveals the incompatibility between classical theory and quantum mechanics in terms of the dimensionality of ph…
Proof-of-principle experimental demonstration of quantum gate verification
Maolin Luo, Xiaoqian Zhang, Xiaoqi Zhou
To employ a quantum device, the performance of the quantum gates in the device needs to be evaluated first. Since the dimensionality of a quantum gate grows exponentially with the…
Non-locality sharing for a three-qubit system via multilateral sequential measurements
Changliang Ren, Xiaowei Liu, Wenlin Hou +2
Non-locality sharing for a three-qubit system via multilateral sequential measurements was deeply discussed. Different from 2-qubit case, it is shown that non-locality sharing betw…
Direct Fidelity Estimation of Quantum States using Machine Learning
Xiaoqian Zhang, Maolin Luo, Zhaodi Wen +4
In almost all quantum applications, one of the key steps is to verify that the fidelity of the prepared quantum state meets expectations. In this Letter, we propose a new approach…
Direct measurement of density-matrix elements using a phase-shifting technique Tianfeng
Tianfeng Feng, Changliang Ren, Xiaoqi Zhou
A direct measurement protocol allows reconstructing specific elements of the density matrix of a quantum state without using quantum state tomography. However, the direct measureme…
Quantum Information Transfer between a Two-Level and a Four-Level Quantum System
Tianfeng Feng, Qiao Xu, Linxiang Zhou +3
Quantum mechanics provides a disembodied way to transfer quantum information from one quantum object to another. In theory, this quantum information transfer can occur between quan…
Experimentally undoing an unknown single-qubit unitary
Qin Feng, Tianfeng Feng, Yuling Tian +2
Undoing a unitary operation, . reversing its action, is the task of canceling the effects of a unitary evolution on a quantum system, and it may be easily achieved when the un…
Non-locality can be Shared between Alice and three Bobs in unbiased settings case
Changliang Ren, Tianfeng Feng, Dan Yao +2
A well-known property of quantum nonlocality is monogamy. However, recent research by Silva \emph{et al.} shows that multiple observers can share the nonlocality by using weak meas…
A Steering Paradox for Einstein-Podolsky-Rosen Argument and its Extended Inequality
Tianfeng Feng, Changliang Ren, Qin Feng +4
The Einstein-Podolsky-Rosen (EPR) paradox is one of the milestones in quantum foundations, arising from the lack of local realistic description of quantum mechanics. The EPR parado…
Observation of nonlocality sharing via not-so-weak measurements
Tianfeng Feng, Changliang Ren, Yuling Tian +4
Nonlocality plays a fundamental role in quantum information science. Recently, it has been theoretically predicted and experimentally demonstrated that the nonlocality of an entang…