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  2. Non-local variable - Wikipedia

    en.wikipedia.org/wiki/Non-local_variable

    Non-local variables are the primary reason it is difficult to support nested, anonymous, higher-order and thereby first-class functions in a programming language. If the nested function or functions are (mutually) recursive, it becomes hard for the compiler to know exactly where on the call stack the non-local variable was allocated, as the frame pointer only points to the local variable of ...

  3. Principle of locality - Wikipedia

    en.wikipedia.org/wiki/Principle_of_locality

    [11]: 98 Consequently, Bell's theorem does not restrict the possibility of nonlocal variables as well as theories based on retrocausality or superdeterminism. [ 2 ] Because of the probabilistic nature of wave function collapse, this apparent violation of locality in quantum mechanics cannot be used to transmit information faster than light, in ...

  4. Quantum nonlocality - Wikipedia

    en.wikipedia.org/wiki/Quantum_nonlocality

    Bell showed that a local hidden variable hypothesis leads to restrictions on the strength of correlations of measurement results. If the Bell inequalities are violated experimentally as predicted by quantum mechanics, then reality cannot be described by local hidden variables and the mystery of quantum nonlocal causation remains.

  5. Hidden-variable theory - Wikipedia

    en.wikipedia.org/wiki/Hidden-variable_theory

    Most hidden-variable theories are attempts to avoid this indeterminacy, but possibly at the expense of requiring that nonlocal interactions be allowed. One notable hidden-variable theory is the de Broglie–Bohm theory .

  6. Nonlocal operator - Wikipedia

    en.wikipedia.org/wiki/Nonlocal_operator

    In mathematics, a nonlocal operator is a mapping which maps functions on a topological space to functions, in such a way that the value of the output function at a given point cannot be determined solely from the values of the input function in any neighbourhood of any point. An example of a nonlocal operator is the Fourier transform.

  7. Nonlocal - Wikipedia

    en.wikipedia.org/wiki/Nonlocal

    Nonlocal may refer to: . Action at a distance, direct interaction of physical objects that are not in proximity; Conjugated system (or nonlocalized bond), in chemistry, a conjugated system is a system of connected p-orbitals with delocalized electrons in compounds with alternating single and multiple bonds, which in general may lower the overall energy of the molecule and increase stability

  8. Nonlocality - Wikipedia

    en.wikipedia.org/wiki/Nonlocality

    Quantum nonlocality, nonlocal phenomena in quantum mechanics Nonlocal Lagrangian , a type of Lagrangian (a mathematical function) Nonlocal operator , which maps functions on a topological space to functions, in such a way that the value of the output function at a given point cannot be determined solely from the values of the input function in ...

  9. Free variables and bound variables - Wikipedia

    en.wikipedia.org/wiki/Free_variables_and_bound...

    Variable binding relates three things: a variable v, a location a for that variable in an expression and a non-leaf node n of the form Q(v, P). Note: we define a location in an expression as a leaf node in the syntax tree. Variable binding occurs when that location is below the node n. In the lambda calculus, x is a bound variable in the term M ...