Wave-particle duality

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Topic: Wave-particle duality

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	Wave-particle duality - Wikipedia, the free encyclopedia
		This confusion over particle versus wave properties was eventually resolved with the advent and establishment of quantum mechanics in the first half of the 20th century, which ultimately explained wave-particle duality.
		Wave functions are often interpreted as describing the probability of finding their corresponding particle at a given point in space at a given time.
		According to wave theory, the strength or amplitude of a light wave was in proportion to its brightness: a bright light should have been plenty strong enough to create a large current.
	en.wikipedia.org /wiki/Wave_theory_of_light (2103 words)

	Photon by Reed Carson -BlavatskyNet
		Blavatsky's comments on the nature of light appear to reveal an insight that is decades ahead of the physicists of her day, showing a foreknowledge of the wave/particle duality of light, one of the important elements in the quantum mechanics of the twentieth century.
		She not only knew the wave/particle duality, and the zero mass of the photon, she also foresaw that science would discover this duality and not be able to go any further.
		According to her, then, light is not a body in the sense that it is not composed of physical particles and is not a motion of material particles of the earthly physical kind of matter.
	www.blavatsky.net /confirm/ev/other/photon.htm (4965 words)

	Quantum Physics: Louis de Broglie: Confirming de Broglie's Matter Waves / WaveLength of Quantum Physics Biography
		And given the particle / wave duality of light and matter, it then follows that if there are no 'particles' then we should consider if matter is a Wave Structure of Space - that Space has the Properties of a Wave Medium.
		the physics of matter, based on the concepts of particles and atoms which were supposed to obey the laws of classical Newtonian mechanics, and the physics of radiation, based on the idea of wave propagation in a hypothetical continuous medium, the luminous and electromagnetic ether.
		The wave nature of the electron was experimentally confirmed in 1927 by C J Davisson, C H Kunsman and L H Germer in the United States and by G P Thomson (the son of J J Thomson) in Aberdeen, Scotland.
	www.spaceandmotion.com /Physics-Louis-de-Broglie.htm (5299 words)

	A Trip to the Shore, and the Wave-Particle Duality of Words, By Cybele Werts
		A strange thing occurs in quantum physics called Wave-Particle Duality, which is that "light and matter simultaneously exhibit properties of waves and of particles."* On the one hand was Fresnes and Young’s experiments which clearly delineated the wave nature of light.
		It’s not so much that we are wrong about light being a wave or a particle, but rather the limitations of our technology and our minds only allow us to see one or the other at a time.
		One morning as I was leaning out to smell the salt and sting spit out from the waves, she asked me about the feeling of leaning over that window versus my writing about that experience.
	www.supertechnogirl.com /mindfulliving/triptotheshore.htm (798 words)

	Experiment violates photon principle
		Many will attempt to explain that wave-particle duality is about using the wave or particle model when that [wave/particle] aspect dominates in a particular experiment.
		Due to the scientific community accepting wave-particle duality, your professor will not answer these questions with any satisfaction to you.
		Wave and particle effects are found together in many experiments, and it has been a long standing paradox.
	www.unquantum.com (798 words)

	Wave-particle duality - Wikipedia, the free encyclopedia
		In quantum mechanics, the wave-particle duality is explained as follows: every system and particle is described by state functions which encode the probability distributions of all measurable variables.
		This is still a controversial subject because these experimenters have assumed arguments of wave-particle duality and have assumed the validity of deBroglie's equation in their argument.
		In quantum electrodynamics, Richard Feynman shows the wave-particle duality of photons and electrons is an illusion.
	en.wikipedia.org /wiki/Wave_theory_of_light (1371 words)

	Physics Help and Math Help - Physics Forums - Light
		The wave-particle duality theory of light is justified with Huygens's principle, Fresnel's TandR [transmission and reflection] equations, polarization, Maxwell's structure of light, Einstein's photoelectric quanta, quantum mechanic wave packet, and quantum electrodynamics (QED).
		I will prove that the wave-particle duality theory of light is invalid then form a particle theory of light that describes the aperture diffraction, and transmission and reflection effects of light.
		The optic particle's energy is represented with the photoelectric energy equation; the constant (h) is derived using the atomic ionization energy and emitted electron's kinetic energy.
	www.physicsforums.com /printthread.php?t=56799 (1941 words)

	Duality (physics)
		This duality also implies that light and electromagnetic radiation which in classical physics are considered be wave phenomena can exhibit particle-like properties.
		In modern physics duality most often refers to the paradigm underlying quantum mechanics according to which matter or energy can exhibit properties associated wave physics as well as classical particle mechanics.
		The conceptual problem with this particle / probability construct is that when the particle absorbed the wave must instantaneously collapse throughout all space.
	www.freeglossary.com /Duality_(physics) (1941 words)

	Bambooweb: Duality physics
		This duality also implies that light and electromagnetic radiation, which in classical physics are considered to be wave phenomena, can exhibit particle-like properties.Light has to be described as a wave in order to explain interference effects, whereas the photoelectric effect is usually explained with a particle model.
		In modern physics, duality most often refers to the paradigm underlying quantum mechanics, according to which matter or energy can exhibit properties associated with wave physics as well as classical particle mechanics.
		The wave-particle duality is only one example where this requirement applies.
	www.bambooweb.com /articles/d/u/Duality__physics_.html (1941 words)

	HotAIR - The Double-Slit Garage Experiment
		We have demonstrated the wave/particle duality of a familiar, "everyday scale" phenomenon -- the stream of cars passing through the exit lanes of the Loyola University of Chicago parking garage.
		This dual nature, this automotive wave/particle duality, is proof positive that nature continues to surprise and amaze us.
		Starting with Thomas Young’s 1810 measurement of the wavelength of light, and continuing with similar studies of subatomic particles in the early 20th century, the double-slit experiments all confirmed Louis deBroglie’s now-famous "wave-particle duality" hypothesis : that absolutely everything should show both kinds of properties -- wave and particle -- at one time or another.
	www.improb.com /airchives/paperair/volume7/v7i6/doubleslit.html (1941 words)

	Uncertainty versus duality
		Remember now the earlier phase of the theory(chapter 7 second meaningshift in duality) where the pointlike particle was considered to be real physical entity although with uncertain position and the wave function was interpreted as a mathematical construction, a probability wave or an uncertainty wave.
		The wave particle duality is nothing but the uncertainty relation between the complementary variables momentum and position.
		The experimental revelation of the uncertainty principle namely the relation between the statistical variance in position and the statistical variance in momentum one obtains by the evaluation of of large number of position and momentum measurements with identically prepared wave functions is a consequence of 2 facts:
	physics-qa.com /html/kqm09.htm (1941 words)

	Wave-particle duality - Wikipedia, the free encyclopedia
		In quantum mechanics, the wave-particle duality is explained as follows: every system and particle is described by state functions which encode the probability distributions of all measurable variables.
		Wave-particle duality of C60, M. Arndt, O. Nairz, J. Voss-Andreae, C. Keller, G. van der Zouw, A. Zeilinger, Nature 401, 680-682, 14 October 1999
		This is still a controversial subject because these experimenters have assumed arguments of wave-particle duality and have assumed the validity of deBroglie's equation in their argument.
	en.wikipedia.org /wiki/Wave-particle_duality (1941 words)

	backdoor.htm
		For instance, in wave-particle duality one experiment proves the electron is a wave, another proves it is a particle.
		According to Sir Karl Popper, competing theories that are equally falsifiable ought to result in one or the other being true; when the competing theories are both true as in wave/particle duality, the undecidability itself must be accepted as an axiom.
		One of the deepest mysteries of quantum mechanics is that an interference pattern is formed even if there is only one particle in the experimental set-up at any given time.
	www.alamo-girl.com /backdoor.htm (13641 words)

	Quantum Theory and Wave/Particle Duality
		On examination, the fundamental rationale for wave/particle duality lies in the assumption that the only possible mechanism for the observed phenomena is the wave propagation mechanisms of diffraction and interference.
		The idea has been introduced into modern physics to account for observations in which particles of matter interact to produce effects that appear to be identical to the effects that occur when waves diffract and interfere.
		The French physicist, Louis de Broglie introduced the wave/particle concept into physics in the 1920s, with a brilliant prediction that particles of matter possess wave properties and act as though they were composed of propagating waves.
	www.hotquanta.com /wpd.html (13641 words)

	Wave-particle duality - Wikipedia, the free encyclopedia
		In quantum mechanics, the wave-particle duality is explained as follows: every system and particle is described by state functions which encode the probability distributions of all measurable variables.
		In physics, wave-particle duality holds that light and matter can exhibit properties of both waves and of particles.
		Before an observation is made the position of the particle is described in terms of probability waves which can interfere with each other.
	en.wikipedia.org /wiki/Duality_(physics) (13641 words)

	Alternative Physics
		Reducing duality to a single waveparticle entity, with the particle appearing at each point of inflection as a deterministic integral part and function of the wave energy, makes it a simpler concept and therefore preferred over the mysticism invoked by the acceptance of duality.
		But with two particle appearances per cycle, and the simplest form of orbiting wave symmetry taken to be two cycles, this indicates that four appearances within a single orbiting wave equate to the single electron presently assumed in the hydrogen atom.This seems possible as chemical interaction would now be the partial interlocking of waveparticle systems.
		In this the energy of the electromagnetic wave is confined in individual quanta radiated or absorbed as a whole, the magnitude being proportional to frequency.
	website.lineone.net /~dbellj/pages.htm (13641 words)

	Wave-Particle Duality
		The evidence for the description of light as waves was well established at the turn of the century when the photoelectric effect introduced firm evidence of a particle nature as well.
		Publicized early in the debate about whether light was composed of particles or waves, a wave-particle dual nature soon was found to be characteristic of electrons as well.
		On the other hand, the particle properties of electrons was well documented when the DeBroglie hypothesis and the subsequent experiments by Davisson and Germer established the wave nature of the electron.
	hyperphysics.phy-astr.gsu.edu /hbase/mod1.html (13641 words)

	Photon by Reed Carson -BlavatskyNet
		She not only knew the wave/particle duality, and the zero mass of the photon, she also foresaw that science would discover this duality and not be able to go any further.
		Blavatsky knew a) the wave/particle duality of light (a major finding of this century's physics), b) the zero mass of the photon, c) light pressure on a surface from the momentum of photons, and d) the paradox remaining with this century's physics.
		According to her, then, light is not a body in the sense that it is not composed of physical particles and is not a motion of material particles of the earthly physical kind of matter.
	www.blavatsky.net /confirm/ev/other/photon.htm (13641 words)

	On the Nature of Quanta
		Dr Lewis Little has approached the wave/particle duality of light and fundamental particles by proposing that they are particles, whose wave-like properties arise from the influence upon their motions by waves travelling in the opposite direction.
		If a wave theory can incorporate this phenomenon, the mysterious duality disappears.
		Perhaps it can no longer be absorbed (unless the wave locally overlaps another one, so the sum is enough), or perhaps at a big enough size the wavefront fragments into "pieces", each small enough to maintain communication from one end to another at the intra-wave speed of collapse.
	www.thoughtware.com.au /philosophy/science/quantum3.html (1668 words)

	The Uncertainty Principle
		One important consequence of the wave-particle duality of nature was discovered by Heisenberg, and is called the uncertainty principle.
		One cannot reduce both down to zero simultaneously - this is a direct consequence of the wave-particle duality of nature.
		As with de Broglie waves, for everyday macroscopic objects such as bowling balls the uncertainty principle plays a negligible role in limiting the accuracy of measurements, as we shall see in some examples.
	theoryx5.uwinnipeg.ca /physics/quant/node7.html (1668 words)

	Quantum Physics: Quantum Theory / Mechanics: The Wave Structure of Matter
		The solution to the particle/wave duality of light is more complex (though it is still obvious once known) and is a consequence of the standing wave structure of matter and that only discrete standing wave interactions can occur during 'Resonant Coupling' of two bound electrons.
		As a consequence of this particle/wave duality, de Broglie imagined the standing waves to be related to discrete wavelengths and standing waves for certain orbits of the electron particle about the proton.
		It maintained the particle - wave duality for BOTH light and matter, and at the same time explained why only certain orbits of the electron (which relate to whole numbers of standing waves) were allowed, which fitted beautifully with Niels Bohr model of the atom.
	www.spaceandmotion.com /Physics-Quantum-Theory-Mechanics.htm (1668 words)

	Romanticism On the Net 16 (November 1999)
		The first is wave-particle complementarity, reflecting the duality of the wave and particle behaviors of quantum objects, and relating the continuous and the discontinuous representations of quantum processes.
		As Peter Achinstein notes, "Newton's particle theory was accepted without question by many physicists until the mid-eighteenth century," when results emerging from experiments undertaken by Franklin and computations derived by the mathematician Euler uncovered wave properties uncountable from the particulate position.
		At the core of Shelley's 'interrelation' of cultural and natural dynamics, a commitment that appears early in his work and remains a steady state of concern throughout his poetic corpus, resides his appropriation of wave mechanics as a dynamic capable of unifying mind and matter.
	www.erudit.org /revue/ron/1999/v/n16/005885ar.html (1668 words)

	Duality [Definition]
		See wave-particle duality In physics, wave-particle duality holds that light and matter simultaneously exhibit properties of waves and of particles (or photons).
		Duality is an album of Lisa Gerrard Lisa Gerrard is an Australian musician and singer who gained international renown as part of the music group duo Dead Can Dance with fellow Australian Brendan Perry.
		[click for more], duality is a dynamic principle of opposing or complementary elements Generally, an element is a basic part that is the foundation of something.
	www.wikimirror.com /Duality (1668 words)

	ipedia.com: Duality (physics) Article
		This duality also implies that light and electromagnetic radiation, which in classical physics are considered to be wave phenomena, can exhibit particle-like properties.
		In modern physics, duality most often refers to the paradigm underlying quantum mechanics, according to which matter or energy can exhibit properties associated with wave physics as well as classical particle mechanics.
		Other fields where duality is encountered in this sense are statistical mechanics and string theory.
	www.ipedia.com /duality__physics_.html (260 words)

	Moviefone: Wave-Particle Duality: The Wave Model Movie
		Wave-Particle Duality - The Wave Model V02885 PHYS 20 - Waves.
		PHY 67 (Sec) 10mins WAVE-PARTICLE DUALITY: THE WAVE MODEL This programme examines the development of Christian Huygen wave model of light behaviour,...
	movies.aol.com /movie/main.adp?mid=1152606 (223 words)

	Uncertainty principle
		Important steps on the way to understanding the uncertainty principle are wave-particle duality and the DeBroglie hypothesis.
		As you proceed downward in size to atomic dimensions, it is no longer valid to consider a particle like a hard sphere, because the smaller the dimension, the more wave-like it becomes.
	hyperphysics.phy-astr.gsu.edu /hbase/uncer.html (223 words)

	duality - OneLook Dictionary Search
		Phrases that include duality: wave-particle duality, wave particle duality, duality principle, serre duality, categorial duality, more...
		Duality : A Glossary of Mathematical Terms [home, info]
		Duality : Online Plain Text English Dictionary [home, info]
	www.onelook.com /cgi-bin/cgiwrap/bware/dofind.cgi?word=duality (228 words)

	essay23
		But now we have to interrupt to point out that a particle also acts as a wave [the particle-wave duality (PWD)].
		In other words, the EPs are shoved aside by the electron, and they close ranks again behind the electron, and this is associated with a shock front that vibrates at a frequency of 4.44 X 10
		As Peter Galison wrote in his fascinating and informative book, "Einstein's Clocks, Poincaré's Maps" (Norton, 2003, pg 324), "Earth's motion through the aether could not be detected...
	www.siddeutsch.org /essay23.html (228 words)

	Physics: Simple Solution to Wave Particle Duality Paradox. Spherical Standing Wave Causes Particle Effect at Wave-Center
		Quantum Theory - The particle/wave duality is obviously explained (spherical waves form a 'particle' effect at their Wave-Center), and the Standing Wave interactions of matter (resonant coupling) explain Schrodinger's wave equations and the discrete energy exchanges of light 'photons'.
		Einstein's Relativity - Force is caused by a change in velocity of the spherical In-Waves (from one direction) which causes a change in location of where these In-Waves finally meet at their wave-center, that we observe as a 'force accelerating a particle'.
		Such a theory will bring about a radical shift - a revolution - in our understanding of what nature is. It must also have wide repercussions, and will likely bring about, or contribute to, a shift in our understanding of ourselves and our relationship to the rest of the universe.
	www.spaceandmotion.com /Physics-Particle-Wave-Duality-Paradox.htm (2209 words)

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Topic: Wave-particle duality

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In the News (Wed 3 Dec 08)