The Einstein-Podolsky-Rosen paradox challenges the idea of local realism in quantum mechanics by suggesting that two entangled particles can instantly affect each other's states regardless of distance. This paradox raises fundamental questions about the completeness of quantum theory, leading to debates and experiments on the nature of quantum entanglement and non-locality.

Einstein-Podolsky-Rosen Paradox

Einstein-Podolsky-Rosen paradox

Local realism is a philosophical framework combining the principles of locality and realism, suggesting that objects have definite states and properties independent of observation and that effects cannot occur instantaneously over a distance. This concept has been challenged by quantum mechanics, particularly through experiments showing violations of Bell's inequalities, implying non-locality or the unreality of quantum states.

local realism

Quantum mechanics is a fundamental theory in physics that describes the physical properties of nature at the smallest scales, such as atoms and subatomic particles. It introduces concepts like wave-particle duality, uncertainty principle, and quantum entanglement, which challenge classical intuitions about the behavior of matter and energy.

quantum mechanics

entangled particles

affect each other's states

Distance is a measure of the interval between two points in space, often quantified in terms of length. It is a fundamental concept in mathematics and physics, playing a crucial role in geometry, mechanics, and various scientific calculations.

distance

completeness of quantum theory

Debates on quantum entanglement

Experiments on quantum entanglement

nature of quantum entanglement

Non-locality refers to the phenomenon where particles instantaneously affect each other's state, regardless of the distance separating them, challenging classical notions of space and causality. This principle is a cornerstone of quantum mechanics, illustrating that the universe is far more interconnected than previously thought.

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