Results 91 to 100 of about 9,815 (180)

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

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

Bell Nonlocality in Quantum Theory

, 2019
Abstract All the examples of nonlocality that we know are accurately described within quantum theory. This chapter presents the study of CHSH and some systematic results. In particular, we learn that separable states can only give rise to local behaviors, while pure entangled states are nonlocal resources.
openaire   +1 more source

Bell Nonlocality in Hybrid Networks

Advanced Physics Research
Abstract In a generic hybrid network, classical, quantum, and no‐signaling sources emit local hidden variables, stabilizer states, and no‐signaling systems, respectively. The maximal correlation strength is investigated as the non‐classical feature in this network.
openaire   +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 nonlocality and causal networks

(English) Understanding the cause and effect relationships behind observed correlations is central to how we reason and interact with the world. Causal relationships help us make sense of the patterns we observe and predict what interventions in nature might lead to a desired outcome. These patterns can be mathematically framed as the joint probability
openaire   +3 more sources

First Encounter with Bell Nonlocality

, 2019
Abstract This chapter is a self-contained introduction to Bell nonlocality. After a very quick historical motivation, the setting and the definition of nonlocality are given. Five classic examples of Bell tests are then introduced, including the CHSH and the GHZ tests.
openaire   +1 more source