Results 61 to 70 of about 609 (135)

Dynamics of nonlocal correlation of two superconducting charge qubits induced by intrinsic decoherence

Alexandria Engineering Journal
The generated nonlocal correlations of two superconducting-charge (SCC) qubits including uncertainty-induced nonlocality (UIN), Bell-Horodecki nonlocality, and negativity’s entanglement have been explored by intrinsic decoherence model.
Fahad Aljuaydi, Nour Zidan, A.-B.A. Mohamed   +2 more
doaj   +1 more source

Classical Causal Models for Bell and Kochen-Specker Inequality Violations Require Fine-Tuning

Physical Review X, 2018
Nonlocality and contextuality are at the root of conceptual puzzles in quantum mechanics, and they are key resources for quantum advantage in information-processing tasks.
Eric G. Cavalcanti
doaj   +1 more source

Impact of parity violation on quantum entanglement and Bell nonlocality

European Physical Journal C: Particles and Fields
We present our new findings on how various fundamental interactions decisively shape quantum entanglement and the Bell measure within and beyond the quantum field theory (QFT). In QFT, parity symmetry plays a key role in determining entanglement.
Yong Du, Xiao-Gang He, Chia-Wei Liu, Jian-Ping Ma   +3 more
doaj   +1 more source

Probing Many-Body Bell Correlation Depth with Superconducting Qubits

Physical Review X
Quantum nonlocality describes a stronger form of quantum correlation than that of entanglement. It refutes Einstein’s belief of local realism and is among the most distinctive and enigmatic features of quantum mechanics.
Ke Wang, Weikang Li, Shibo Xu, Mengyao Hu, Jiachen Chen, Yaozu Wu, Chuanyu Zhang, Feitong Jin, Xuhao Zhu, Yu Gao, Ziqi Tan, Zhengyi Cui, Aosai Zhang, Ning Wang, Yiren Zou, Tingting Li, Fanhao Shen, Jiarun Zhong, Zehang Bao, Zitian Zhu, Zixuan Song, Jinfeng Deng, Hang Dong, Xu Zhang, Pengfei Zhang, Wenjie Jiang, Zhide Lu, Zheng-Zhi Sun, Hekang Li, Qiujiang Guo, Zhen Wang, Patrick Emonts, Jordi Tura, Chao Song, H. Wang, Dong-Ling Deng   +35 more
doaj   +1 more source

Fermionic steering is not nonlocal in the background of dilaton black hole

European Physical Journal C: Particles and Fields
We study the redistribution of the fermionic steering and the relation among fermionic Bell nonlocality, steering, and entanglement in the background of the Garfinkle–Horowitz–Strominger dilaton black hole.
Shu-Min Wu, Jin-Xuan Li, Xiao-Ying Jiang, Xiao-Wei Teng, Xiao-Li Huang, Jianbo Lu   +5 more
doaj   +1 more source

Quantum steering and coherence evolution of two atoms under noisy environments

Results in Physics
By considering two kinds of non-Markovian (NM) environments, the dynamical behavior of quantum steering, Bell nonlocality and coherence of a system of two atoms initially immersed in a vacuum has been studied.
K. Berrada, A. Sabik, H. Eleuch
doaj   +1 more source

Single Bell inequality to detect genuine nonlocality in three-qubit pure genuinely entangled states

New Journal of Physics
It remains an open question whether every pure multipartite state that is genuinely entangled is also genuinely nonlocal. Recently, a new general construction of Bell inequalities allowing the detection of genuine multipartite nonlocality (GMNL) in ...
Ignacy Stachura, Owidiusz Makuta, Remigiusz Augusiak   +2 more
doaj   +1 more source

Bell-inequality violation for continuous, non-projective measurements

Scientific Reports
Many solid-state quantum platforms do not permit sharp, projective measurements but instead yield continuous voltage or field traces under weak, non-demolition readout.
Shalender Singh, Santosh Kumar
doaj   +1 more source

Self-testing tilted strategies for maximal loophole-free nonlocality

npj Quantum Information
The degree of experimentally attainable nonlocality, as gauged by the loophole-free or effective violation of Bell inequalities, remains severely limited due to inefficient detectors.
Nicolas Gigena, Ekta Panwar, Giovanni Scala, Mateus Araújo, Máté Farkas, Anubhav Chaturvedi   +5 more
doaj   +1 more source

Unbounded-input explicit Bell inequalities for general quantum networks

Physical Review Research
Quantum nonlocality in networks featuring multiple independent sources underpins large-scale quantum communication and poses fundamental challenges for its characterization.
Yao Xiao, Fenzhuo Guo, Haifeng Dong, Sujuan Qin, Fei Gao   +4 more
doaj   +1 more source