December 9, 2024
bstract: The thermodynamic costs and limitations of measuring, erasing
or cooling quantum systems have been studied within different paradigms.
Projective measurements, perfect erasure or exact ground state cooling
are of course limited by the third law of thermodynamics and cannot be
achieved without infinite resources, which present differently in each
paradigm. I will briefly cover some desirable properties of measurements
and talk about notions of cooling beyond equilibrated systems. Then I
will present a framework that unifies many approaches and allows to
bound achievable cooling using general properties of the system used to
refrigerate, giving insight into the relation between complexity,
cooling and energy.