Special Topic: Quantum Information
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Advances in continuous variable measurement-device-independent quantum key distribution
Wang P, Tian Y, Li Y M
Sci China Inf Sci, 2025, 68(8): 180501
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(8): 180501, doi: 10.1007/s11432-024-4491-9

Special Topic: Quantum Information
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Direct estimation of quantum channel incompatibility via a quantum switch
Wei Y Y, Li G-C, Wang L-W, et al
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(8): 180502, doi: 10.1007/s11432-025-4500-8

Special Topic: Quantum Information
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Quantum-enhanced blockchain federated learning via quantum Byzantine agreement
Liu H-W, Liu Z-P, Yin H-L, et al
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(8): 180503, doi: 10.1007/s11432-025-4471-7

Special Topic: Quantum Information
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Variational quantum eigensolver with linear depth problem-inspired ansatz for solving portfolio optimization in finance
Wang S B, Wang P, Li G H, et al
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(8): 180504, doi: 10.1007/s11432-024-4185-1

Special Topic: Quantum Information
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Bridging quantum elementary links with spectral steering
Zhang R M, Fan Y R, Yuan C Z, et al
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(8): 180505, doi: 10.1007/s11432-025-4508-4

Special Topic: Quantum Information
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Tight bounds of quantum speed limit for noisy dynamics via maximum rotation angles
Hu Z H, Yuan H D, Zhang Z G, et al
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(8): 180506, doi: 10.1007/s11432-024-4484-9

Special Topic: Quantum Information
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Topology-driven quantum architecture search framework
Su J J, Fan J C, Wu S Y, et al
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(8): 180507, doi: 10.1007/s11432-024-4486-x

Special Topic: Quantum Information
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Third-order exceptional surface in a pseudo-Hermitian superconducting circuit
Zhang G Q, Lin S Y, Feng W, et al
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(8): 180508, doi: 10.1007/s11432-025-4470-4

Special Topic: Quantum Information
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Towards the ultimate limits of quantum channel discrimination and quantum communication
Fang K, Gour G, Wang X
Sci China Inf Sci, 2025, 68(8): 180509
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(8): 180509, doi: 10.1007/s11432-024-4488-0

Special Topic: Quantum Information
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Effective rate-adaptive reconciliation for CV-QKD using QC-MET-LDPC codes
Zhang K, Hou J, Jiang X-Q, et al
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(8): 180510, doi: 10.1007/s11432-024-4480-x

Special Topic: Quantum Information
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GHZ-W genuinely entangled subspace verification with adaptive local measurements
Zheng C C, Xu P, Wang K, et al
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(8): 180511, doi: 10.1007/s11432-024-4515-1