Molecular heat pump for rotational states

Molecular heat pump for rotational states

In this work, we investigate the theory for three different unidirectional population-transfer schemes in trapped multilevel systems which can be utilized to cool molecular ions. The approach we use exploits the laser-induced coupling between the internal and motional degrees of freedom so that the internal state of a molecule can be mapped onto the motion of that molecule in an external trappi...

On rotational coherent states in molecular quantum dynamics

Coherent states suitable for the description of molecular rotations are developed and their connection to similar coherent states in the literature are explored. In particular their quasiclassical properties are developed. The use of such coherent states in time-dependent electron nuclear dynamics studies of molecular collision processes is discussed. © 1999 American Institute of Physics. @S002...

Chiral brownian heat pump.

We present the exact analysis of a chiral Brownian motor and heat pump. Optimization of the construction predicts, for a nanoscale device, frequencies of the order of kHz and cooling rates of the order of femtojoule per second.

Heat Pump Centre

s (200 300 words) covering the themes of the Conference can be submitted on the website www. hpc2017.org from 1st December 2015 onwards until 31st March 2016. The abstracts will be screened and authors will contacted and be advised of acceptance by 30th June 2016. Full papers will be required by 30th November 2016. The 12th IEA Heat Pump Conference starts on Monday starts with a series of Works...

Air Source Heat Pump for Northern Climates Part I: Simulation of Different Heat Pump Cycles