Is regular light considered a soliton?

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Solitons are solitary waves that maintain their shape over long distances without dissipating. Regular light waves, such as those emitted in a spherical pulse, decay according to the inverse square law (1/r²), which disqualifies them as solitons. However, well-focused laser pulses can be considered solitons due to their ability to maintain shape and coherence. The discussion highlights the distinction between general light behavior and specific conditions under which light can exhibit soliton characteristics. Overall, not all light qualifies as a soliton, but certain focused forms can.
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"Solitary waves that run a long distance without losing their shape or dying out are a special class of waves called solitons."

Such examples as in light waves in optical fibers, vibration frequencies within crystalline structures, and B.E. condensates.

My question is does regular light wave count as a soliton? Does light ever slow down or run out so to speak?
 
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If you emit a spherical pulse of light it will decay as 1/r² so it will decay and not be a soliton. You might count a well-focused laser pulse as a soliton.
 
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