Original public paper: Physical PDF pages 839–841. All four alternatives in question 1 and both later questions are answered. We distinguish collective order-parameter oscillations from individual quasiparticles, and use the dimensionless units of question 2 only in that question.
Original public paper: Physical PDF pages 765–767. All questions and all optional notes are answered. The population above a normal-state Fermi surface is distinguished from a bosonic condensate depletion and from a quasiparticle population.
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