Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun The projection of a particle's spin vector in the direction of its momentum vector, being positive if it points in the same direction, and negative if it points in the opposite direction. Helicity is the chirality of the particle's spin.
- noun An instance of such projection.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun The quality of being
helical . - noun physics The
quantized spin component of a movingparticle
Etymologies
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Examples
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Also gravity waves have to directions of polarization, instead of one for EM waves, which is tied to something called helicity which is 2.
A Dark, Misleading Force Sean 2007
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In section 33.8, Penrose brings in "Massless fields of mixed helicity-such as a plane-polarized photon, which is the sum of a right-handed and left-handed part".
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The photon has a helicity or spin, momentum and energy.
Does Space Expand? Sean 2008
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The chiral helicity of the films may be useful for electromagnetic and optical applications.
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The other rules may be briefly mentioned here: the weak isospin rule, the strong (color) charge rule, the mass rule, the equivalence rule, the antiparticle rule, the helicity rule and the
Scientific Blogging 2010
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He recalls Boris 'second helicity supertrace Omega, talks about walls of marginal stability and
The Reference Frame 2010
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Dixon found some new structures in the helicity formalism.
The Reference Frame 2010
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The laser pulses were polarized at right angles to each other, so they created an interference grating in which the light intensity was constant but its helicity varied.
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The laser pulses were polarized at right angles to each other, so they created an interference grating in which the light intensity was constant but its helicity varied.
Nano Tech Wire 2009
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ArntbHLH-C / EBP shows 49\% helicity, as measured at 222 nm.
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