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Afshar experiment

Index Afshar experiment

The Afshar experiment is an optics experiment, devised and carried out by Shahriar Afshar at Harvard University in 2004, which is a variation of the double slit experiment in quantum mechanics. [1]

46 relations: AIP Conference Proceedings, American Physical Society, Analog Science Fiction and Fact, Blog, Bratislava, Complementarity (physics), Copenhagen interpretation, Delayed choice quantum eraser, Diffraction, Double-slit experiment, Englert–Greenberger–Yasin duality relation, Experiment, Foundations of Physics, Harvard University, Image plane, Interferometry, John G. Cramer, Journal of Modern Optics, Laser, Lens (optics), Luboš Motl, Many-worlds interpretation, New Journal of Physics, New Scientist, Optics, Photon, Proceedings of SPIE, Progress in Physics, Quantum mechanics, Shahriar Afshar, Slovak Academy of Sciences, Slovakia, SPIE, Stern–Gerlach experiment, Thomas Young (scientist), Thought experiment, Transactional interpretation, University of British Columbia, University of Hertfordshire, University of Maryland, College Park, W. G. Unruh, Wave interference, Weak measurement, Wheeler's delayed choice experiment, Wheeler–Feynman absorber theory, Young's interference experiment.

AIP Conference Proceedings

AIP Conference Proceedings is a serial published by the American Institute of Physics since 1970.

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American Physical Society

The American Physical Society (APS) is the world's second largest organization of physicists.

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Analog Science Fiction and Fact

Analog Science Fiction and Fact is an American science-fiction magazine published under various titles since 1930.

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Blog

A blog (a truncation of the expression "weblog") is a discussion or informational website published on the World Wide Web consisting of discrete, often informal diary-style text entries ("posts").

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Bratislava

Bratislava (Preßburg or Pressburg, Pozsony) is the capital of Slovakia.

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Complementarity (physics)

In physics, complementarity is both a theoretical and an experimental result of quantum mechanics, also referred to as principle of complementarity.

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Copenhagen interpretation

The Copenhagen interpretation is an expression of the meaning of quantum mechanics that was largely devised in the years 1925 to 1927 by Niels Bohr and Werner Heisenberg.

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Delayed choice quantum eraser

A delayed choice quantum eraser experiment, first performed by Yoon-Ho Kim, R. Yu, S. P. Kulik, Y. H. Shih and Marlan O. Scully, and reported in early 1999, is an elaboration on the quantum eraser experiment that incorporates concepts considered in Wheeler's delayed choice experiment.

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Diffraction

--> Diffraction refers to various phenomena that occur when a wave encounters an obstacle or a slit.

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Double-slit experiment

In modern physics, the double-slit experiment is a demonstration that light and matter can display characteristics of both classically defined waves and particles; moreover, it displays the fundamentally probabilistic nature of quantum mechanical phenomena.

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Englert–Greenberger–Yasin duality relation

The Englert–Greenberger–Yasin duality relation, often called the Englert–Greenberger relation, relates the visibility, V, of interference fringes with the definiteness, or distinguishability, D, of the photons' paths in quantum optics.

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Experiment

An experiment is a procedure carried out to support, refute, or validate a hypothesis.

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Foundations of Physics

Foundations of Physics is a monthly journal "devoted to the conceptual bases and fundamental theories of modern physics and cosmology, emphasizing the logical, methodological, and philosophical premises of modern physical theories and procedures".

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Harvard University

Harvard University is a private Ivy League research university in Cambridge, Massachusetts.

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Image plane

In 3D computer graphics, the image plane is that plane in the world which is identified with the plane of the monitor.

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Interferometry

Interferometry is a family of techniques in which waves, usually electromagnetic waves, are superimposed causing the phenomenon of interference in order to extract information.

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John G. Cramer

John Gleason Cramer, Jr. (born October 24, 1934) is a Professor Emeritus of Physics at the University of Washington in Seattle, Washington.

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Journal of Modern Optics

The Journal of Modern Optics is a peer-reviewed scientific journal that was established as Optica Acta in 1954.

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Laser

A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation.

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Lens (optics)

A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction.

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Luboš Motl

Luboš Motl (born December 5, 1973) is a Czech theoretical physicist.

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Many-worlds interpretation

The many-worlds interpretation is an interpretation of quantum mechanics that asserts the objective reality of the universal wavefunction and denies the actuality of wavefunction collapse.

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New Journal of Physics

New Journal of Physics is an online-only, open-access, peer-reviewed scientific journal covering research in all aspects of physics, as well as interdisciplinary topics where physics forms the central theme.

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New Scientist

New Scientist, first published on 22 November 1956, is a weekly, English-language magazine that covers all aspects of science and technology.

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Optics

Optics is the branch of physics which involves the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it.

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Photon

The photon is a type of elementary particle, the quantum of the electromagnetic field including electromagnetic radiation such as light, and the force carrier for the electromagnetic force (even when static via virtual particles).

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Proceedings of SPIE

Proceedings of SPIE is the conference record of the SPIE.

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Progress in Physics

Progress in Physics is an American alternative science journal, publishing papers in theoretical and experimental physics, including related themes from mathematics.

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Quantum mechanics

Quantum mechanics (QM; also known as quantum physics, quantum theory, the wave mechanical model, or matrix mechanics), including quantum field theory, is a fundamental theory in physics which describes nature at the smallest scales of energy levels of atoms and subatomic particles.

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Shahriar Afshar

Shahriar Sadigh Afshar (شهريار صديق افشار.) (born 1971) is an Iranian-American physicist and multiple award-winning inventor.

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Slovak Academy of Sciences

The Slovak Academy of Sciences (in Slovak Slovenská akadémia vied, or SAV) is the main scientific and research institution in Slovakia fostering basic and strategic basic research.

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Slovakia

Slovakia (Slovensko), officially the Slovak Republic (Slovenská republika), is a landlocked country in Central Europe.

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SPIE

SPIE is an international not-for-profit professional society for optics and photonics technology, founded in 1955.

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Stern–Gerlach experiment

The Stern–Gerlach experiment demonstrated that the spatial orientation of angular momentum is quantized.

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Thomas Young (scientist)

Thomas Young FRS (13 June 1773 – 10 May 1829) was a British polymath and physician.

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Thought experiment

A thought experiment (Gedankenexperiment, Gedanken-Experiment or Gedankenerfahrung) considers some hypothesis, theory, or principle for the purpose of thinking through its consequences.

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Transactional interpretation

The transactional interpretation of quantum mechanics (TIQM) takes the psi and psi* wave functions of the standard quantum formalism to be retarded (forward in time) and advanced (backward in time) waves that form a quantum interaction as a Wheeler–Feynman handshake or transaction.

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University of British Columbia

The University of British Columbia (UBC) is a public research university with campuses in Vancouver and Kelowna, British Columbia.

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University of Hertfordshire

The University of Hertfordshire is a university in Hertfordshire, United Kingdom.

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University of Maryland, College Park

The University of Maryland, College Park (commonly referred to as the University of Maryland, UMD, or simply Maryland) is a public research university located in the city of College Park in Prince George's County, Maryland, approximately from the northeast border of Washington, D.C. Founded in 1856, the university is the flagship institution of the University System of Maryland.

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W. G. Unruh

William George "Bill" Unruh (born August 28, 1945) is a Canadian physicist at the University of British Columbia, Vancouver who described the hypothetical Unruh effect in 1976.

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Wave interference

In physics, interference is a phenomenon in which two waves superpose to form a resultant wave of greater, lower, or the same amplitude.

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Weak measurement

In quantum mechanics (and computation & information), weak measurements are a type of quantum measurement that results in an observer obtaining very little information about the system on average, but also disturbs the state very little.

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Wheeler's delayed choice experiment

Wheeler's delayed choice experiment is actually several thought experiments in quantum physics, proposed by John Archibald Wheeler, with the most prominent among them appearing in 1978 and 1984.

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Wheeler–Feynman absorber theory

The Wheeler–Feynman absorber theory (also called the Wheeler–Feynman time-symmetric theory), named after its originators, the physicists Richard Feynman and John Archibald Wheeler, is an interpretation of electrodynamics derived from the assumption that the solutions of the electromagnetic field equations must be invariant under time-reversal transformation, as are the field equations themselves.

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Young's interference experiment

Young's interference experiment, also called Young's double-slit interferometer, was the original version of the modern double-slit experiment, performed at the beginning of the nineteenth century by Thomas Young.

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Afshar paradox.

References

[1] https://en.wikipedia.org/wiki/Afshar_experiment

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