leggett-garg inequality
The Leggett-Garg inequality is a mathematical expression that examines the behavior of certain physical systems, specifically those that involve quantum mechanics. It provides a way to test whether these systems adhere to the principles of classical physics or if they exhibit quantum properties. The inequality helps to determine if a system can be described in terms of definite values for its properties at different times, which would support classical physics, or if it requires a more probabilistic and indeterminate description, indicating the presence of quantum effects.
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Related Concepts (21)
- bell inequality loopholes
- bell's theorem
- contextuality
- correlations
- counterfactuals
- entanglement
- experimental testability
- hidden variable theories
- incompatibility of quantum theory with local realism
- macroscopic realism
- measurement scenarios
- nonlocality
- observables
- quantum coherence
- quantum foundations
- quantum interference
- quantum mechanics
- quantum state reconstruction
- quantum tomography
- superposition
- violation of classical physics
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