Intrinsic Quasiparticle Lifetime in a Superconducting Aluminum

Konrad Norowski, Marek Foltyn, Alexander Savin +1

We use time-resolved thermometry to monitor the decay of nonequilibrium quasiparticles in superconducting Al in the temperature range from $0.3$K to $1.2$K. The quasiparticle l…