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Experimental quantum non-Gaussian coincidences of entangled photons
Run-Ze Liu, Yu-Kun Qiao, Lukáš Lachman +7
Quantum non-Gaussianity, a more potent and highly useful form of nonclassicality, excludes all convex mixtures of Gaussian states and Gaussian parametric processes generating them.…
Logical Magic State Preparation with Fidelity Beyond the Distillation Threshold on a Superconducting Quantum Processor
Yangsen Ye, Tan He, He-Liang Huang +35
Fault-tolerant quantum computing based on surface code has emerged as an attractive candidate for practical large-scale quantum computers to achieve robust noise resistance. To ach…
Eliminating temporal correlation in quantum-dot entangled photon source by quantum interference
Run-Ze Liu, Yu-Kun Qiao, Han-Sen Zhong +6
Semiconductor quantum dots, as promising solid-state platform, have exhibited deterministic photon pair generation with high polarization entanglement f\textcompwordmark idelity fo…
Experimental quantum computational chemistry with optimised unitary coupled cluster ansatz
Shaojun Guo, Jinzhao Sun, Haoran Qian +35
Quantum computational chemistry has emerged as an important application of quantum computing. Hybrid quantum-classical computing methods, such as variational quantum eigensolvers (…
Realization of an Error-Correcting Surface Code with Superconducting Qubits
Youwei Zhao, Yangsen Ye, He-Liang Huang +36
Quantum error correction is a critical technique for transitioning from noisy intermediate-scale quantum (NISQ) devices to fully fledged quantum computers. The surface code, which…
Quantum Computational Advantage via 60-Qubit 24-Cycle Random Circuit Sampling
Qingling Zhu, Sirui Cao, Fusheng Chen +50
To ensure a long-term quantum computational advantage, the quantum hardware should be upgraded to withstand the competition of continuously improved classical algorithms and hardwa…
Quantum interference between independent solid-state single-photon sources separated by 300 km fiber
Xiang You, Ming-Yang Zheng, Si Chen +23
In the quest to realize a scalable quantum network, semiconductor quantum dots (QDs) offer distinct advantages including high single-photon efficiency and indistinguishability, hig…
Strong quantum computational advantage using a superconducting quantum processor
Yulin Wu, Wan-Su Bao, Sirui Cao +51
Scaling up to a large number of qubits with high-precision control is essential in the demonstrations of quantum computational advantage to exponentially outpace the classical hard…
Towards optimal single-photon sources from polarized microcavities
Hui Wang, Yu-Ming He, Tung Hsun Chung +21
An optimal single-photon source should deterministically deliver one and only one photon at a time, with no trade-off between the source's efficiency and the photon indistinguishab…
On-demand semiconductor source of entangled photons which simultaneously has high fidelity, efficiency, and indistinguishability
Hui Wang, Hai Hu, T. -H. Chung +14
An outstanding goal in quantum optics and scalable photonic quantum technology is to develop a source that each time emits one and only one entangled photon pair with simultaneousl…
Conditions for entangled photon emission from (111)B site-controlled Pyramidal quantum dots
G. Juska, E. Murray, V. Dimastrodonato +4
A study of highly symmetric site-controlled Pyramidal In0.25Ga0.75As quantum dots (QDs) is presented. It is discussed that polarization-entangled photons can be also obtained from…