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12-photon entanglement and scalable scattershot boson sampling with optimal entangled-photon pairs from parametric down-conversion
Han-Sen Zhong, Yuan Li, Wei Li +17
Entangled photon sources with simultaneously near-unity heralding efficiency and indistinguishability are the fundamental elements for scalable photonic quantum technologies. We de…
Experimental Test of Generalized Hardy's Paradox
Yi-Han Luo, Hong-Yi Su, He-Liang Huang +7
Since the pillars of quantum theory were established, it was already noted that quantum physics may allow certain correlations defying any local realistic picture of nature, as fir…
Emergence of Classical Objectivity of Quantum Darwinism in a Photonic Quantum Simulator
Ming-Cheng Chen, Han-Sen Zhong, Yuan Li +6
Quantum-to-classical transition is a fundamental open question in physics frontier. Quantum decoherence theory points out that the inevitable interaction with environment is a sink…
A loophole-free Wheeler-delayed-choice experiment
H. -L. Huang, Y. -H. Luo, B. Bai +13
Wheeler's delayed-choice experiment investigates the indeterminacy of wave-particle duality and the role played by the measurement apparatus in quantum theory. Due to the inconsist…
Phase amplification in optical interferometry with weak measurement
Li Li, Yuan Li, You-Lang Zhang +5
Improving the phase resolution of interferometry is crucial for high-precision measurements of various physical quantities. Systematic phase errors dominate the phase uncertainties…
Satellite-relayed intercontinental quantum network
Sheng-Kai Liao, Wen-Qi Cai, Johannes Handsteiner +33
We perform decoy-state quantum key distribution between a low-Earth-orbit satellite and multiple ground stations located in Xinglong, Nanshan, and Graz, which establish satellite-t…
18-qubit entanglement with photon's three degrees of freedom
Xi-Lin Wang, Yi-Han Luo, He-Liang Huang +12
A central theme in quantum information science is to coherently control an increasing number of quantum particles as well as their internal and external degrees of freedom (DoFs),…
Demonstration of Topological Data Analysis on a Quantum Processor
He-Liang Huang, Xi-Lin Wang, Peter P. Rohde +7
Topological data analysis offers a robust way to extract useful information from noisy, unstructured data by identifying its underlying structure. Recently, an efficient quantum al…