Nonlocal quantum correlations under amplitude damping decoherence
arXiv:1910.06483 · doi:10.1103/PhysRevA.100.042311
Abstract
Different nonlocal quantum correlations of entanglement, steering and Bell nonlocality are defined with the help of local hidden state (LHS) and local hidden variable (LHV) models. Considering their unique roles in quantum information processing, it is of importance to understand the individual nonlocal quantum correlation as well as their relationship. Here, we investigate the effects of amplitude damping decoherence on different nonlocal quantum correlations. In particular, we have theoretically and experimentally shown that the entanglement sudden death phenomenon is distinct from those of steering and Bell nonlocality. In our scenario, we found that all the initial states present sudden death of steering and Bell nonlocality, while only some of the states show entanglement sudden death. These results suggest that the environmental effect can be different for different nonlocal quantum correlations, and thus, it provides distinct operational interpretations of different quantum correlations.
9 pages, 4 figures including appendix
References in corpus (13)
- Experimental quantum teleportation
- Device-independent security of quantum cryptography against collective attacks
- Steering, Entanglement, Nonlocality, and the EPR Paradox
- Sudden Death of Entanglement
- Quantum Open System Theory: Bipartite Aspects
- Entanglement, EPR-correlations, Bell-nonlocality, and Steering
- Experimental investigation of the dynamics of entanglement: Sudden death, complementarity, and continuous monitoring of the environment
- Fine-grained EPR-steering inequalities
- Exploration quantum steering, nonlocality and entanglement of two-qubit X-state in structured reservoirs
- Local basis-dependent noise-induced Bell-nonlocality sudden death in tripartite systems
- Time-invariant entanglement and sudden death of nonlocality for multipartite systems under collective dephasing
- Environment assisted entanglement enhancement
- Decoherence Effects on the Non-locality of Symmetric States