In physics and chemistry, wave-particle duality holds that light and matter exhibit properties of both waves and of particles.
A central concept of quantum mechanics, duality addresses the inadequacy of conventional concepts like "particle" and "wave" to meaningfully describe the behaviour of quantum objects.
The idea of duality is rooted in a debate over the nature of light and matter dating back to the 1600s, when competing theories of light were proposed by Christiaan Huygens and Isaac Newton.
Through the work of Albert Einstein, Louis de Broglie and many others, it is now established that all objects have both wave and particle nature (though this phenomenon is only detectable on small scales, such as with atoms), and that a suitable interpretation of quantum mechanics provides the over-arching theory resolving this ostensible paradox.
Mechanics Mechanics can be seen as the prime, and even as the original, discipline of physics. It is a huge body of knowledge about the natural world. It also ... >
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Spin (physics) In physics, spin refers to the angular momentum intrinsic to a body, as opposed to orbital angular momentum, which is generated by the motion of its ... >
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Light Light is electromagnetic radiation with a wavelength that is visible to the eye (visible light) or, in a technical or scientific context, ... >
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List of phases of matter This is a list of the different phases of matter including the more exotic ones. Generally phases of matter are distinguished by the pressure and ... >
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Electromagnetism Electromagnetism is the physics of the electromagnetic field: a field, encompassing all of space, which exerts a force on those particles that ... >
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Uncertainty principle In quantum physics, the Heisenberg uncertainty principle states that one cannot assign, with full precision, values for certain pairs of observable ... >
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Photoelectric effect The photoelectric effect is the emission of electrons from matter upon the absorption of electromagnetic radiation, such as ultraviolet radiation or ... >
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Electron The Electron is a fundamental subatomic particle that carries an electric charge. It is a spin-half lepton that participates in electromagnetic ... >
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Electromagnetic radiation Electromagnetic radiation is a propagating wave in space with electric and magnetic components. These components oscillate at right angles to each ... >
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