Tag

Local Realism

All articles tagged with #local realism

science2 years ago•2 min saved

Superconducting qubits disprove Einstein's theory of local causality.

An experiment using superconducting qubits separated by 30 meters has demonstrated that quantum mechanics violates local realism by allowing two objects to behave as a single quantum system, no matter how large the separation between them. The experiment provides a new precision to these sorts of measurements and may be essential for future quantum computing efforts. The experiment is interesting because qubits give us a great deal of control over the system, allowing us to rapidly perform a large number of experiments and probe the behavior of this entanglement.

via Ars Technica|

#entanglement #local-realism #quantum-mechanics

science2 years ago•6 min saved

The Future's Impact on the Past in Quantum Physics.

The 2022 Nobel Prize in physics highlighted the challenges quantum experiments pose to “local realism.” However, a growing body of experts propose “retrocausality” as a solution, suggesting that present actions can influence past events, thus preserving both locality and realism. This concept offers a novel approach to understanding causation and correlations in quantum mechanics, and despite some critics and confusion with “superdeterminism,” it is increasingly seen as a viable explanation for recent groundbreaking experiments, potentially safeguarding the core principles of special relativity.

via SciTechDaily|

#causation #local-realism #nobel-prize