Identical Particles


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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Identical Particles

 

particles that have identical physical properties, including mass, spin, electric charge, and other intrinsic characteristics, such as quantum numbers. For example, all electrons in the universe are regarded as identical. Identical particles conform to the principle of indistinguishability. The funda mental indistinguishability of identical particles is a purely quantum-mechanical concept.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
"Our study indicates that a basic entangling mechanism can be realized by simply bringing independent identical particles to spatially overlap and accessing the entanglement by sLOCC operations," Lo Franco told Phys.org.
The physicists, Rosario Lo Franco and Giuseppe Compagno at the University of Palermo, Italy, have published a paper in which they show the usefulness of identical particle entanglement in a recent issue of Physical Review Letters.
In the pioneering work of Kam [11, 12] it was proposed to determine the structure of a single particle using scattered intensity from many identical particles in solution.
Vartanyants, "Solution of the phase problem for coherent scattering from a disordered system of identical particles," New Journal of Physics, vol.
For two identical particles the vacuum state irregularity is assumed to be located midway between the particles, thus [K.sub.Tr] = [K.sub.T[THETA] = 0.
After describing Quantum Mechanics in general terms, I will briefly discuss van Fraassen's "modal interpretation" of QM, and his views on EPR correlations and so-called "identical particles."
The fourth and largest section has the philosophical meat of the book: discussions of some prominent "interpretations" of QM, and extensive treatment of the issues of the EPR correlations and the puzzles of identical particles. It is here that van Fraassen gives his views, in detail, of how an empiricist should approach the alleged philosophical problems of QM.
For systems composed by identical particles and/or sets of in general distinguishable field modes (either discrete or continuous, finite or infinite), the characterization and quantification of entanglement are achieved unambiguously only by properly taking into account the algebra of observables besides the tensor product structure of the individual state spaces.
With a new non-chemical method of creating identical particles of any size in large quantities, "the possible applications are up to your imagination," Arnold said.
They predicted the mixing or segregation tendencies of particles by comparing the strength of attraction between pairs of identical particles with that of different particle pairs.