… que si necesitas unir un par de pdf’s, podrías utilizar imagemagick (aunque a veces tenga problemas con la resoluación):
convert doc1.pdf doc2.pdf combined.pdf
Si no, siempre puedes usar pdftk:
pdftk doc1.pdf doc2.pdf cat output combined.pdf
Also, I learnt that Physics, sometimes, just “clicks”:
it turns out that the dipole-dipole interactions between neutral atoms can be linked to the cooperativity phenomena in very dense samples. When the dipole-dipole interactions shift the energy of the transition |g>->|e> further away than the lifetime, the cooperativity goes to one. That is, for a sufficiently dense/hot sample, we see cooperative effects when the dipole-dipole interactions overcome the natural linewidth.
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