Special Topic: Quantum Information
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Topology-driven quantum architecture search framework
Su, Junjian; Fan, Jiacheng; Wu, Shengyao; Li, Guanghui; Qin, Sujuan; Gao, Fei
Sci China Inf Sci, 2025, 68(8): 180507
Keywords: quantum machine learning; variational quantum algorithm; quantum variational circuits; quantum architecture search; search space decoupling
Cite as: Su J J, Fan J C, Wu S Y, et al. Topology-driven quantum architecture search framework. Sci China Inf Sci, 2025, 68: 180507, doi: 10.1007/s11432-024-4486-x
Special Topic: Quantum Information
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Cited in SCI: 8
Keywords: quantum key distribution; continuous variable; measurement-device-independent; quantum conferencing; quantum communication
Cite as: Wang P, Tian Y, Li Y M. Advances in continuous variable measurement-device-independent quantum key distribution. Sci China Inf Sci, 2025, 68: 180501, doi: 10.1007/s11432-024-4491-9
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Keywords: multi-party quantum private comparison; size relationship; one-direction quantum walks on a circle; participant attack; quantum circuits
Cite as: Wang J T, Lian J Y, Ye T Y. Multi-party quantum private comparison of size relationship based on one-direction quantum walks on a circle. Sci China Inf Sci, 2025, 68: 129502, doi: 10.1007/s11432-024-4188-6
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Highly reliable quantum secure direct communication based on concatenated GKP-QLDPC codes
Wang, Lei; Chai, Geng; Cao, Zhengwen; Chen, Xinlei
Sci China Inf Sci, 2026, 69(7): 179403
Keywords: quantum secure direct communication; quantum error correction; Gottesman-Kitaev-Preskill state; quantum low-density parity-check codes; continuous variable
Cite as: Wang L, Chai G, Cao Z W, et al. Highly reliable quantum secure direct communication based on concatenated GKP-QLDPC codes. Sci China Inf Sci, 2026, 69: 179403, doi: 10.1007/s11432-025-4608-6
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Quantum attack on RSA by D-Wave Advantage: a first break of 80-bit RSA
Hong, Chunlei; Pei, Zhi; Wang, Qidi; Yang, Shuxiao; Yu, Jingjing; Wang, Chao
Sci China Inf Sci, 2025, 68(2): 129501
Keywords: RSA; closest vector problem; quantum annealing; D-wave advantage; Babai algorithm
Cite as: Hong C L, Pei Z, Wang Q D, et al. Quantum attack on RSA by D-Wave Advantage: a first break of 80-bit RSA. Sci China Inf Sci, 2025, 68: 129501, doi: 10.1007/s11432-024-4163-6
Special Topic: Quantum Information
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Keywords: quantum information; quantum channel discrimination; quantum communication; quantum capacity; quantum hypothesis testing; quantum divergence
Cite as: Fang K, Gour G, Wang X. Towards the ultimate limits of quantum channel discrimination and quantum communication. Sci China Inf Sci, 2025, 68: 180509, doi: 10.1007/s11432-024-4488-0
Special Topic: Quantum Information
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Quantum-enhanced blockchain federated learning via quantum Byzantine agreement
Liu, Hao-Wen; Liu, Zhi-Ping; Yin, Hua-Lei; Chen, Zeng-Bing
Sci China Inf Sci, 2025, 68(8): 180503
Keywords: federated learning; tensor network; quantum Byzantine agreement; differential privacy; blockchain
Cite as: Liu H-W, Liu Z-P, Yin H-L, et al. Quantum-enhanced blockchain federated learning via quantum Byzantine agreement. Sci China Inf Sci, 2025, 68: 180503, doi: 10.1007/s11432-025-4471-7
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AI-generated image detection algorithm based on classical-quantum hybrid neural network
Xu, Juncong; Fang, Han; Yang, Yang; Chen, Kejiang; Chen, Zhaoyun; Dou, Menghan; Qu, Lei; Zhang, Weiming; Guo, Guoping
Sci China Inf Sci, 2026, 69(1): 112501
Keywords: AI-generated image detection; quantum neural network; quantum computing; generative adversarial network
Cite as: Xu J C, Fang H, Yang Y, et al. AI-generated image detection algorithm based on classical-quantum hybrid neural network. Sci China Inf Sci, 2026, 69: 112501, doi: 10.1007/s11432-024-4475-4
Special Topic: Quantum Information
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Effective rate-adaptive reconciliation for CV-QKD using QC-MET-LDPC codes
Zhang, Kun; Hou, Jia; Jiang, Xue-Qin; Dai, Jisheng; Huang, Peng; Zeng, Guihua
Sci China Inf Sci, 2025, 68(8): 180510
Keywords: continuous-variable quantum key distribution; information reconciliation; multi-edge type low-density parity-check codes; quasi-cyclic low-density parity-check codes; rate-adaptive
Cite as: Zhang K, Hou J, Jiang X-Q, et al. Effective rate-adaptive reconciliation for CV-QKD using QC-MET-LDPC codes. Sci China Inf Sci, 2025, 68: 180510, doi: 10.1007/s11432-024-4480-x
Special Topic: Quantum Information
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Third-order exceptional surface in a pseudo-Hermitian superconducting circuit
Zhang, Guoqiang; Lin, Siyan; Feng, Wei; Wang, Yu; Yu, Yang; Yang, Chuiping
Sci China Inf Sci, 2025, 68(8): 180508
Keywords: superconducting circuit; exceptional surface; PT symmetry; pseudo-Hermiticity
Cite as: Zhang G Q, Lin S Y, Feng W, et al. Third-order exceptional surface in a pseudo-Hermitian superconducting circuit. Sci China Inf Sci, 2025, 68: 180508, doi: 10.1007/s11432-025-4470-4
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Fully passive reference-frame-independent quantum key distribution with finite-key security analysis
Ying, Jia-Wei; Gu, Shi-Pu; Wang, Xing-Fu; Zhou, Lan; Sheng, Yu-Bo
Sci China Inf Sci, 2026, 69(8): 182501
Keywords: fully passive; reference-frame-independent; quantum key distribution; quantum communication; finite-key
Cite as: Ying J-W, Gu S-P, Wang X-F, et al. Fully passive reference-frame-independent quantum key distribution with finite-key security analysis. Sci China Inf Sci, 2026, 69: 182501, doi: 10.1007/s11432-025-4759-x
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Reverse-encoded quantum key distribution with Gaussian-modulated coherent states
Guo, Mingxuan; Huang, Peng; Wang, Tao; Zeng, Guihua
Sci China Inf Sci, 2026, 69(6): 162503
Keywords: quantum key distribution; Gaussian modulation; coherent state
Cite as: Guo M X, Huang P, Wang T, et al. Reverse-encoded quantum key distribution with Gaussian-modulated coherent states. Sci China Inf Sci, 2026, 69: 162503, doi: 10.1007/s11432-025-4575-5
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Bipartite entanglement measures and entanglement constraints
Li, Hui; Gao, Ting; Yan, Fengli
Sci China Inf Sci, 2025, 68(12): 229501
Keywords: entanglement measure; monogamy relation; polygamy relation; multiparty quantum system; quantum state
Cite as: Li H, Gao T, Yan F L. Bipartite entanglement measures and entanglement constraints. Sci China Inf Sci, 2025, 68: 229501, doi: 10.1007/s11432-025-4579-1
Special Topic: Quantum Information
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Bridging quantum elementary links with spectral steering
Zhang, Ruiming; Fan, Yunru; Yuan, Chenzhi; Yu, Hao; Li, Hao; Wang, You; Deng, Guangwei; Song, Haizhi; You, Lixing; Guo, Guangcan; Zhou, Qiang
Sci China Inf Sci, 2025, 68(8): 180505
Keywords: spectrally multiplexing; Bell state measurement; frequency shifting; quantum elementary link; quantum network
Cite as: Zhang R M, Fan Y R, Yuan C Z, et al. Bridging quantum elementary links with spectral steering. Sci China Inf Sci, 2025, 68: 180505, doi: 10.1007/s11432-025-4508-4
Special Topic: Quantum Information
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Direct estimation of quantum channel incompatibility via a quantum switch
Wei, Yuyan; Li, Gong-Chu; Wang, Li-Wen; Hong, Xu-Song; Chen, Lei; Zhang, Si-Qi; Xu, Hua-Qin; Liu, Yuancheng; Zhang, Yong-Sheng; Chen, Geng; Li, Chuan-Feng; Guo, Guang-Can
Sci China Inf Sci, 2025, 68(8): 180502
Keywords: quantum channel incompatibility; quantum switch; quantum information; indefinite causal order
Cite as: Wei Y Y, Li G-C, Wang L-W, et al. Direct estimation of quantum channel incompatibility via a quantum switch. Sci China Inf Sci, 2025, 68: 180502, doi: 10.1007/s11432-025-4500-8
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Highly integrated broadband entropy source for quantum random number generators based on vacuum fluctuations
Wang, Xuyang; Shi, Yuqi; Wang, Ning; Yun, Jie; Li, Jiaxu; Jia, Yanxiang; Liu, Shuaishuai; Lu, Zhenguo; Zou, Jun; Li, Yongmin
Sci China Inf Sci, 2026, 69(6): 162501
Keywords: quantum random number generator; integrated entropy source; equalizer; balanced homodyne detector
Cite as: Wang X Y, Shi Y Q, Wang N, et al. Highly integrated broadband entropy source for quantum random number generators based on vacuum fluctuations. Sci China Inf Sci, 2026, 69: 162501, doi: 10.1007/s11432-025-4660-1
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Quantum computational insurance and actuarial science
Liu, Huan-Yu; Zhuang, Xi-Ning; Wang, Chao; Li, Qing-Song; Dou, Meng-Han; Chen, Zhao-Yun; Xue, Cheng; Wu, Yu-Chun; Guo, Guo-Ping; Guo, Guang-Can
Sci China Inf Sci, 2025, 68(10): 202501
Keywords: quantum computation; insurance; quantum machine learning; superconducting quantum computers
Cite as: Liu H-Y, Zhuang X-N, Wang C, et al. Quantum computational insurance and actuarial science. Sci China Inf Sci, 2025, 68: 202501, doi: 10.1007/s11432-024-4411-8
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Experimental quantum randomness certification via Einstein-Podolsky-Rosen steering in prepare-and-measure scenario
Huang, Xiaoting; Huang, Siyao; Chang, Zehong; Wang, Yunlong; Xiang, Yu; Gao, Hong; Li, Fuli; Zhang, Pei
Sci China Inf Sci, 2025, 68(10): 202401
Keywords: quantum randomness; Einstein-Podolsky-Rosen steering; prepare-and-measure scenario; one-sided device-independent; randomness certification
Cite as: Huang X T, Huang S Y, Chang Z H, et al. Experimental quantum randomness certification via Einstein-Podolsky-Rosen steering in prepare-and-measure scenario. Sci China Inf Sci, 2025, 68: 202401, doi: 10.1007/s11432-025-4503-6
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Quantum metrology via mitigation of single-photon loss using an engineered nonlinear oscillator
Yang, Tian-Le; Ning, Wen; Yang, Zhen-Biao; Zheng, Shi-Biao
Sci China Inf Sci, 2026, 69(9): 192504
Keywords: quantum metrology; loss mitigation; non-Gaussian states; engineered two-photon loss; autonomous stabilization
Cite as: Yang T-L, Ning W, Yang Z-B, et al. Quantum metrology via mitigation of single-photon loss using an engineered nonlinear oscillator. Sci China Inf Sci, 2026, 69: 192504, doi: 10.1007/s11432-025-4903-y
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Dynamically quantum attack detection for quantum key distribution based on deep representations
Liu, Minjie; Chen, Ye; Fan, Xiaodong; Huang, Jinquan; Mu, Tonglin; Guo, Junran; Sun, Shihai
Sci China Inf Sci, 2026, 69(9): 192503
Keywords: QKD; quantum attacks; dynamic evolutionary detection scheme; embedding model; attack feature vector database; unseen quantum attack strategies
Cite as: Liu M J, Chen Y, Fan X D, et al. Dynamically quantum attack detection for quantum key distribution based on deep representations. Sci China Inf Sci, 2026, 69: 192503, doi: 10.1007/s11432-025-4878-3
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From quantum discord to fully reference-frame-independent quantum key distribution
Wang, Rong; Zhang, Chun-Mei; Yin, Zhen-Qiang
Sci China Inf Sci, 2026, 69(9): 192502
Keywords: quantum key distribution; fully reference-frame-independent; quantum discord; security analysis; quantum resource
Cite as: Wang R, Zhang C-M, Yin Z-Q. From quantum discord to fully reference-frame-independent quantum key distribution. Sci China Inf Sci, 2026, 69: 192502, doi: 10.1007/s11432-025-4828-x
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Realizing scalable conditional operations through auxiliary energy levels
Zhang, Sheng; Duan, Peng; Wang, Yun-Jie; Wang, Tian-Le; Wang, Peng; Zhao, Ren-Ze; Yang, Xiao-Yan; Zhao, Ze-An; Zhang, Hai-Feng; Li, Zhi-Fei; Wu, Yuan; Tao, Hao-Ran; Guo, Liang-Liang; Du, Lei; Zhang, Chi; Jia, Zhi-Long; Kong, Wei-Cheng; Chen, Zhao-Yun; Zhang, Zhuo-Zhi; Song, Xiang-Xiang; Wu, Yu-Chun; Guo, Guo-Ping
Sci China Inf Sci, 2026, 69(9): 192501
Keywords: noisy intermediate-scale quantum; conditional operations; transition composite gate; auxiliary energy levels; entangled-state preparation; quantum comparator
Cite as: Zhang S, Duan P, Wang Y-J, et al. Realizing scalable conditional operations through auxiliary energy levels. Sci China Inf Sci, 2026, 69: 192501, doi: 10.1007/s11432-025-4760-9
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Security of few-state quantum key distribution with virtual mutual unbiased bases
Gong, Li; Hao, Chenpeng; Chen, Zhijiang; Lu, Yifei; Wang, Yang; Li, Jiaji; Zhou, Yanyang; Zhou, Chun; Li, Hongwei
Sci China Inf Sci, 2026, 69(8): 189501
Keywords: quantum cryptography; quantum communication; quantum key distribution; quantum security; finite resources
Cite as: Gong L, Hao C P, Chen Z J, et al. Security of few-state quantum key distribution with virtual mutual unbiased bases. Sci China Inf Sci, 2026, 69: 189501, doi: 10.1007/s11432-025-4612-2
Special Topic: Quantum Information
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Efficient self-consistent quantum comb tomography on the product Stiefel manifold
He, Xinlin; Li, Zetong; Zheng, Congcong; Li, Sixuan; Yu, Xutao; Qian, Ling; Zhang, Runqing; Huang, Zhiguo; Han, Jize; Zhang, Zaichen
Sci China Inf Sci, 2026, 69(8): 180509
Keywords: quantum comb; tomography; Stiefel manifold; Riemannian optimization; non-Markovian gate set tomography
Cite as: He X L, Li Z T, Zheng C C, et al. Efficient self-consistent quantum comb tomography on the product Stiefel manifold. Sci China Inf Sci, 2026, 69: 180509, doi: 10.1007/s11432-026-5043-8
Special Topic: Quantum Information
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The correlated matching decoder for the 4.8.8 color code
Liu, Yantong; Wu, Junjie; Lao, Lingling
Sci China Inf Sci, 2026, 69(8): 180508
Keywords: quantum error correction; error decoding; surface code; color code; matching decoder
Cite as: Liu Y T, Wu J J, Lao L L. The correlated matching decoder for the 4.8.8 color code. Sci China Inf Sci, 2026, 69: 180508, doi: 10.1007/s11432-026-5027-y
Special Topic: Quantum Information
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Keywords: quantum cryptanalysis; symmetric cryptography; offline Simon's algorithm; pseudorandom function; classical query; quantum query
Cite as: Zhen X-F, Li Z-Q, Fan J-C, et al. Offline dedicated quantum attacks on block cipher constructions based on two parallel permutation-based pseudorandom functions. Sci China Inf Sci, 2026, 69: 180507, doi: 10.1007/s11432-026-5030-8
Special Topic: Quantum Information
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Distributed exact quantum amplitude amplification algorithm for arbitrary quantum states
Zhou, Xu; Tao, Wenxuan; Li, Keren; Zheng, Shenggen
Sci China Inf Sci, 2026, 69(8): 180506
Keywords: noisy intermediate-scale quantum era; distributed quantum computation; quantum amplitude amplification algorithm; mindspore quantum; quantum gate decomposition
Cite as: Zhou X, Tao W X, Li K R, et al. Distributed exact quantum amplitude amplification algorithm for arbitrary quantum states. Sci China Inf Sci, 2026, 69: 180506, doi: 10.1007/s11432-026-5020-7
Special Topic: Quantum Information
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Deterministic distribution of Gaussian entanglement and quantum steering through fiber channels
Yan, Yanru; Ren, Siyu; Zhao, Mengyu; Han, Dongmei; Li, Yalin; Wang, Meihong; Su, Xiaolong
Sci China Inf Sci, 2026, 69(8): 180505
Keywords: quantum entanglement; quantum steering; distribution; fiber channel; continuous-variable
Cite as: Yan Y R, Ren S Y, Zhao M Y, et al. Deterministic distribution of Gaussian entanglement and quantum steering through fiber channels. Sci China Inf Sci, 2026, 69: 180505, doi: 10.1007/s11432-026-5008-4
Special Topic: Quantum Information
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Q-Tag: watermarking quantum circuit generative models
Yang, Yang; Long, Yuzhu; Fang, Han; Chen, Zhaoyun; Li, Zhonghui; Zhang, Weiming; Guo, Guoping
Sci China Inf Sci, 2026, 69(8): 180504
Keywords: quantum circuit; IP protection; latent diffusion model; quantum circuit generative models; watermarking
Cite as: Yang Y, Long Y Z, Fang H, et al. Q-Tag: watermarking quantum circuit generative models. Sci China Inf Sci, 2026, 69: 180504, doi: 10.1007/s11432-025-5016-2
Special Topic: Quantum Information
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Keywords: continuous-variable system; network nonlocality; Bell-type inequality; Gaussian states; generalized quasiprobability function
Cite as: Yan T T, Hou J C, Qi X F, et al. Witnessing nonlocality in quantum networks of continuous-variable systems by generalized quasiprobability functions. Sci China Inf Sci, 2026, 69: 180503, doi: 10.1007/s11432-025-4753-8
Special Topic: Quantum Information
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Scalable and highly fault-tolerant circular quantum Byzantine agreement
Weng, Chen-Xun; Li, Ming-Yang; Li, Shi-Gen; Zhu, Mengya; Sun, Xiao-Ran; Yin, Hua-Lei; Chen, Zeng-Bing
Sci China Inf Sci, 2026, 69(8): 180502
Keywords: quantum Byzantine agreement; quantum blockchain; semi-decentralized; high fault-tolerance; polynomial communication complexity; blockchain trilemma
Cite as: Weng C-X, Li M-Y, Li S-G, et al. Scalable and highly fault-tolerant circular quantum Byzantine agreement. Sci China Inf Sci, 2026, 69: 180502, doi: 10.1007/s11432-026-4996-4
Special Topic: Quantum Information
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Polarization self-compensation quantum key distribution system with 5 GHz modulation
Hao, Peng-Lei; Chen, Wei; Wang, Shuang; Yin, Zhen-Qiang; He, De-Yong; Wang, Fang-Xiang; Liu, Shu-Feng; Zhou, Sheng; Wang, Yu; Guo, Guang-Can; Han, Zheng-Fu
Sci China Inf Sci, 2026, 69(8): 180501
Keywords: quantum key distribution; adaptive polarization compensation; InGaAs/InP SPAD; 5 GHz modulation; time- and wavelength-division multiplexing
Cite as: Hao P-L, Chen W, Wang S, et al. Polarization self-compensation quantum key distribution system with 5 GHz modulation. Sci China Inf Sci, 2026, 69: 180501, doi: 10.1007/s11432-025-4933-9
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Implementation of deterministic quantum spatial searches in a circuit QED system
Su, Qi-Ping; Shen, Rui-Qi; Kang, Yi-Hao; Shen, Lijiong; Yang, Chui-Ping
Sci China Inf Sci, 2026, 69(6): 162504
Keywords: quantum search; continuous-time quantum walk; circuit QED; complete graph; microwave cavity
Cite as: Su Q-P, Shen R-Q, Kang Y-H, et al. Implementation of deterministic quantum spatial searches in a circuit QED system. Sci China Inf Sci, 2026, 69: 162504, doi: 10.1007/s11432-025-4566-7
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Link optimization of duplex quantum communication systems
Niu, Peng-Hao; Zhang, Fei-Hao; Bao, Rui-Song; Long, Gui-Lu
Sci China Inf Sci, 2026, 69(6): 162502
Keywords: quantum communication; quantum network; link optimization
Cite as: Niu P-H, Zhang F-H, Bao R-S, et al. Link optimization of duplex quantum communication systems. Sci China Inf Sci, 2026, 69: 162502, doi: 10.1007/s11432-025-4611-8
Special Topic: Quantum Information
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GHZ-W genuinely entangled subspace verification with adaptive local measurements
Zheng, Congcong; Xu, Ping; Wang, Kun; Zhang, Zaichen
Sci China Inf Sci, 2025, 68(8): 180511
Keywords: genuinely entangled subspace; quantum verification; adaptive measurements; GHZ state; W state
Cite as: Zheng C C, Xu P, Wang K, et al. GHZ-W genuinely entangled subspace verification with adaptive local measurements. Sci China Inf Sci, 2025, 68: 180511, doi: 10.1007/s11432-024-4515-1
Special Topic: Quantum Information
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Tight bounds of quantum speed limit for noisy dynamics via maximum rotation angles
Hu, Zihao; Yuan, Haidong; Zhang, Zigui; Fung, Chi-Hang Fred; Miao, Zibo
Sci China Inf Sci, 2025, 68(8): 180506
Keywords: quantum speed limit; noisy dynamics
Cite as: Hu Z H, Yuan H D, Zhang Z G, et al. Tight bounds of quantum speed limit for noisy dynamics via maximum rotation angles. Sci China Inf Sci, 2025, 68: 180506, doi: 10.1007/s11432-024-4484-9
Special Topic: Quantum Information
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Variational quantum eigensolver with linear depth problem-inspired ansatz for solving portfolio optimization in finance
Wang, Shengbin; Wang, Peng; Li, Guihui; Zhao, Shubin; Zhao, Dongyi; Wang, Jing; Fang, Yuan; Dou, Menghan; Gu, Yongjian; Wu, Yu-Chun; Guo, Guo-Ping
Sci China Inf Sci, 2025, 68(8): 180504
Keywords: variational quantum eigensolver; hardware-efficient Dicke state ansatz; quantum/classical hybrid distributed computing; fragment reuse technique; portfolio optimization
Cite as: Wang S B, Wang P, Li G H, et al. Variational quantum eigensolver with linear depth problem-inspired ansatz for solving portfolio optimization in finance. Sci China Inf Sci, 2025, 68: 180504, doi: 10.1007/s11432-024-4185-1
