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  2. Causality (physics) - Wikipedia

    en.wikipedia.org/wiki/Causality_(physics)

    Causality is the relationship between causes and effects. [1] [2] While causality is also a topic studied from the perspectives of philosophy and physics, it is operationalized so that causes of an event must be in the past light cone of the event and ultimately reducible to fundamental interactions.

  3. Causality - Wikipedia

    en.wikipedia.org/wiki/Causality

    Causality is an influence by which one event, ... [48] describe causality forming the basis of physics as a misconception, because physics is essentially acausal. In ...

  4. Principle of locality - Wikipedia

    en.wikipedia.org/wiki/Principle_of_locality

    Bell described the assumptions behind his work as "local causality", shortened to "locality"; later authors referred to the assumptions as local realism. [10] These different names do not alter the mathematical assumptions. A review of papers [11] using this phrase suggests that a common (classical) physics definition of realism is

  5. Retrocausality - Wikipedia

    en.wikipedia.org/wiki/Retrocausality

    Retrocausality, or backwards causation, is a concept of cause and effect in which an effect precedes its cause in time and so a later event affects an earlier one. [1] [2] In quantum physics, the distinction between cause and effect is not made at the most fundamental level and so time-symmetric systems can be viewed as causal or retrocausal.

  6. Causal structure - Wikipedia

    en.wikipedia.org/wiki/Causal_structure

    The causality violating set is the set of points through which closed causal curves pass. The boundary of the causality violating set is a Cauchy horizon . If the Cauchy horizon is generated by closed null geodesics, then there's a redshift factor associated with each of them.

  7. Causal system - Wikipedia

    en.wikipedia.org/wiki/Causal_system

    Physics involving special relativity or general relativity require more careful definitions of causality, as described elaborately in Causality (physics). The causality of systems also plays an important role in digital signal processing, where filters are constructed so that they are causal, sometimes by altering a non-causal formulation to ...

  8. Light cone - Wikipedia

    en.wikipedia.org/wiki/Light_cone

    Because signals and other causal influences cannot travel faster than light (see special relativity), the light cone plays an essential role in defining the concept of causality: for a given event E, the set of events that lie on or inside the past light cone of E would also be the set of all events that could send a signal that would have time ...

  9. Causal reasoning - Wikipedia

    en.wikipedia.org/wiki/Causal_reasoning

    The study of causality extends from ancient philosophy to contemporary neuropsychology; assumptions about the nature of causality may be shown to be functions of a previous event preceding a later one. The first known protoscientific study of cause and effect occurred in Aristotle's Physics. [1] Causal inference is an example of causal reasoning.