6533b7d5fe1ef96bd126485d

RESEARCH PRODUCT

Temperature concepts for small, isolated systems: 1/t decay and radiative cooling

Jens Ulrik AndersenUlrik PedersenPreben HvelplundE. BonderupKlavs HansenShigeo TomitaBo Liu

subject

Canonical ensemblePhysicsQuenchingMicrocanonical ensembleRadiative coolingExcited statePhysics::Atomic and Molecular ClustersOptical physicsAtomic physicsExponential decayPower lawAtomic and Molecular Physics and Optics

description

We report on progress in our investigations of cluster cooling. The analysis of measurements is based on introduction of the microcanonical temperature and a statistical description of the decay of an ensemble with a broad distribution in temperature. The resulting time dependence of the decay rate is a power law close to t �1 , replaced by nearly exponential decay after a characteristic time for quenching by radiative cooling. We focus on results obtained for fullerenes, both anions and cations and recently also neutral C60.

https://pure.au.dk/portal/da/publications/temperature-concepts-for-small-isolated-systems-1t-decay-and-radiative-cooling(6070e470-9cb0-11db-bee9-02004c4f4f50).html