Bell's theorem - Wikipedia
Bell's theorem is a term encompassing a number of closely related results in physics, all of which determine that quantum mechanics is incompatible with local hidden-variable theories, given some basic assumptions about the nature of measurement.
Bell’s Theorem - Stanford Encyclopedia of Philosophy
2004年7月21日 · Bell’s theorem shows that no theory that satisfies the conditions imposed can reproduce the probabilistic predictions of quantum mechanics under all circumstances. The principal condition used to derive Bell inequalities is a …
How Bell’s Theorem Proved ‘Spooky Action at a Distance’ Is Real
2021年7月20日 · The root of today’s quantum revolution was John Stewart Bell’s 1964 theorem showing that quantum mechanics really permits instantaneous connections between far-apart locations. We take for granted that an event in one part of the world cannot instantly affect what happens far away.
量子信息：贝尔定理说明了什么？(I) - 知乎 - 知乎专栏
贝尔定理(Bell's theorem)，以及与所谓定域隐变量理论(local hidden-variable theory) 有关的贝尔不等式(Bell's inequality) 是量子力学基础中最重要的结论之一。其论证过程，把关于局部隐变量理论的一…
Bell’s Theorem - Explanation, Bell’s Inequality, Local Realism, FAQs
What does Bell Theorem mean? Bell’s theorem states that “There is no physical theory for local hidden variables which can reproduce the quantum mechanics predictions”. The theorem is named after John Stewart Bell. Hidden variables are the microscopic properties of particles that are difficult to observe with the existing microscope.
Bell's Theorem | Brilliant Math & Science Wiki
Bell's theorem is an important philosophical and mathematical statement in the theory of quantum mechanics. It showed that a category of physical theories called local hidden variables theory could not account for the degree of correlations between the spins of entangled electrons predicted by quantum theory.
Bell's Theorem - Stanford Encyclopedia of Philosophy
2004年7月21日 · Bell (1964) gives a pioneering proof of the theorem that bears his name, by first making explicit a conceptual framework within which expectation values can be calculated for the spin components of a pair of spin-half particles, then showing that, regardless of the choices that are made for certain unspecified functions that occur in the ...
Bell's Theorem - University of Toronto
In a hidden variable theory, the time for the decay to occur is not random, although the variable controlling the process is hidden from us. We will discuss Bohm's work extensively later in this document. In 1964 J.S. Bell published his theorem. It was …
Bell's Theorem - QuantumExplainer.com
2024年8月8日 · Bell's Theorem, developed by physicist John Bell, explores classical views by investigating the limitations of quantum mechanics. It delves into hidden variables to elucidate quantum behavior, sparking debates on physical reality.
Bell's theorem - Quantiki
In its simplest form, Bell's theorem states: No physical theory of local hidden variables can ever reproduce all of the predictions of quantum mechanics. This theorem has even been called "the most profound in science" (Stapp, 1975). Bell's seminal 1965 paper was entitled "On the Einstein Podolsky Rosen paradox".