Results 11 to 20 of about 1,547,945 (291)

Steering Bell-diagonal states [PDF]

Scientific Reports, 2016
AbstractWe investigate the steerability of two-qubit Bell-diagonal states under projective measurements by the steering party. In the simplest nontrivial scenario of two projective measurements, we solve this problem completely by virtue of the connection between the steering problem and the joint-measurement problem.
Quan Quan, Huangjun Zhu, Si-Yuan Liu, Shao-Ming Fei, Heng Fan, Wen-Li Yang   +5 more
openaire   +3 more sources

Hiding Bits in Bell States [PDF]

Physical Review Letters, 2001
4 pages RevTex, 1 figure, various small changes and additional paragraph on optics ...
Terhal, Barbara M., DiVincenzo, David P., Leung, Debbie W.   +2 more
openaire   +3 more sources

Bell violation in 2 → 2 scattering in photon, gluon and graviton EFTs

Journal of High Energy Physics, 2023
In this paper, we explore Bell inequality violation for 2 → 2 scattering in Effective Field Theories (EFTs) of photons, gluons, and gravitons. Using the CGLMP Bell parameter (I 2), we show that, starting from an appropriate initial non-product state, the
Diptimoy Ghosh, Rajat Sharma
doaj   +1 more source

Bell inequality, Bell states and maximally entangled states for n qubits [PDF]

Physics Letters A, 1998
First, we present a Bell type inequality for n qubits, assuming that m out of the n qubits are independent. Quantum mechanics violates this inequality by a ratio that increases exponentially with m. Hence an experiment on n qubits violating of this inequality sets a lower bound on the number m of entangled qubits.
Gisin, Nicolas, Pasquinucci, Helle Bechmann Johansen   +1 more
openaire   +4 more sources

Experimental realization of a quantum classification: Bell state measurement via machine learning

APL Machine Learning, 2023
The Bell state is a crucial resource for the realization of quantum information tasks, and when combined with orbital angular momentum (OAM), it enables a high-dimensional Hilbert space, which is essential for high-capacity quantum communication. In this
Qing-Yuan Wu, Zhe Meng, Xiao-Xiao Chen, Jian Li, Jia-Zhi Yang, An-Ning Zhang   +5 more
doaj   +1 more source

Generation and dynamic manipulation of frequency degenerate polarization entangled Bell states by a silicon quantum photonic circuit

Chip, 2022
A silicon quantum photonic circuit was proposed and realized for the generation and the dynamic manipulation of telecom-band frequency-degenerate polarization entangled Bell states.
Dong-Ning Liu, Jing-Yuan Zheng, Ling-Jie Yu, Xue Feng, Fang Liu, Kai-Yu Cui, Yi-Dong Huang, Wei Zhang   +7 more
doaj   +1 more source

Bell-state diagonal-entanglement witnesses [PDF]

Physical Review A, 2005
39 pages, 3 ...
Jafarizadeh, M. A., Rezaee, M., Yagoobi, S. K. A. Seyed   +2 more
openaire   +2 more sources

Mathematically Proving Bell Nonlocality Motivated by the GHZ Argument

IEEE Access, 2021
Bell nonlocality of quantum states is an important resource in quantum information and then has various applications. It is usually detected by the violation of some Bell’s inequalities and the all-versus-nothing test. In the present paper, we aim
Qiaowei Zhang, Zhihua Guo, Huaixin Cao
doaj   +1 more source

Bell Inequalities for Graph States [PDF]

Physical Review Letters, 2005
4 pages, 1 figure, v2: presentation ...
Gühne, O., Tóth, G., Hyllus, P., Briegel, H.   +3 more
openaire   +4 more sources

Decoherence-Induced Sudden Death of Entanglement and Bell Nonlocality

Photonics, 2022
Decoherence due to the unwanted interaction between a quantum system and environment leads to the degradation of quantum coherence. In particular, for an entangled state, decoherence makes a loss of entanglement and Bell nonlocality known as entanglement
Dong-Gil Im, Yoon-Ho Kim
doaj   +1 more source