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Counterfactual Bell-State Analysis [PDF]
Scientific Reports, 2018 The Bell-state analysis to distinguish between the four maximally entangled Bell states requires the joint measurement on entangled particles. However, spatially separated parties cannot perform the joint measurement.
Fakhar Zaman +2 more
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Metasurface for complete measurement of polarization Bell state [PDF]
Nanophotonics, 2022 Bell state measurement is vital to quantum information technology. Conventional linear optical elements, however, cannot fully distinguish all polarization Bell states without assisting of additional degrees of freedom.
Gao Zhanjie +4 more
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Hyperentangled Bell-state analysis [PDF]
Physical Review A, 2007 It is known that it is impossible to unambiguously distinguish the four Bell states encoded in pairs of photon polarizations using only linear optics. However, hyperentanglement, the simultaneous entanglement in more than one degree of freedom, has been shown to assist the complete Bell analysis of the four Bell states (given a fixed state of the other
Wei, Tzu-Chieh +2 more
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Optimal Estimation of Quantum Coherence by Bell State Measurement: A Case Study [PDF]
Entropy, 2023 Quantum coherence is the most distinguished feature of quantum mechanics. As an important resource, it is widely applied to quantum information technologies, including quantum algorithms, quantum computation, quantum key distribution, and quantum ...
Yuan Yuan +3 more
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Exchange-symmetrized qudit Bell bases and Bell-state distinguishability
Physical Review ResearchEntanglement of qudit pairs, with single-particle Hilbert space dimension d, has important potential for quantum information processing, with applications in cryptography, algorithms, and error correction. For a pair of qudits of arbitrary even dimension
Oscar Scholin, Theresa W. Lynn
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Bell correlations at finite temperature [PDF]
Quantum, 2018 We show that spin systems with infinite-range interactions can violate at thermal equilibrium a multipartite Bell inequality, up to a finite critical temperature $T_c$.
Matteo Fadel, Jordi Tura
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A computationally efficient approach to quantum state reconstruction using robust classical shadows [PDF]
Scientific ReportsQuantum state tomography is a fundamental technique for characterizing quantum systems, but its scalability remains a significant challenge. This paper investigates an efficient alternative using classical shadows to reconstruct a Bell state with high ...
Sanjay Sharma +3 more
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Transforming graph states via Bell state measurements [PDF]
QuantumGraph states are key resources for measurement-based quantum computing, which is particularly promising for photonic systems. Fusions are probabilistic Bell state measurements, measuring pairs of parity operators of two qubits.
Matthias C. Löbl +3 more
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Frontiers in Quantum Science and Technology, 2022 Hyperentangled state analysis is an important module in high-capacity quantum communication. We present a self-assisted deterministic hyperentangled-Bell-state analysis (HBSA) scheme for photon system entangled in three degrees of freedom (DOFs), where ...
Chang-Qi Yu +3 more
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Error Performance of Amplitude Shift Keying-Type Asymmetric Quantum Communication Systems
Entropy, 2022 We propose an amplitude shift keying-type asymmetric quantum communication (AQC) system that uses an entangled state. As a first step toward development of this system, we evaluated and considered the communication performance of the proposed receiver ...
Tiancheng Wang, Tsuyoshi Sasaki Usuda
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