That is something different, holes are quasiparticles [1], phenomena that show characteristics of and can be mathematically described like particles but are not particles but for example collections of particles or the absence of a particles in case of a holes. They really show particle like behaviour while virtual particles don't.
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Didn't read the article, but aren't the "holes" as encountered in semiconductor physics also virtual particles? Or is this a new concept?
That is something different, holes are quasiparticles [1], phenomena that show characteristics of and can be mathematically described like particles but are not particles but for example collections of particles or the absence of a particles in case of a holes. They really show particle like behaviour while virtual particles don't.
[1] https://en.wikipedia.org/wiki/Quasiparticle