Thermoelectric transport and Peltier cooling of cold atomic gases

TL;DR

This paper reviews thermoelectric transport in cold atomic gases, highlighting experimental observations and proposing a Peltier cooling method that could enhance cooling efficiency and enable new studies of strongly correlated fermionic systems.

Contribution

It introduces a novel cooling technique based on Peltier effects in cold atoms, combining transport properties with evaporative cooling for improved performance.

Findings

Experimental thermoelectric effects observed in cold atom systems

Proposed Peltier cooling as an efficient alternative to evaporative cooling

Potential to explore strong correlation effects at lower temperatures

Abstract

This brief review presents the emerging field of mesoscopic physics with cold atoms, with an emphasis on thermal and 'thermoelectric' transport, i.e. coupled transport of particle and entropy. We review in particular the comparison between theoretically predited and experimentally observed thermoelectric effects in such systems. We also show how combining well designed transport properties and evaporative cooling leads to an equivalent of the Peltier effect with cold atoms, which can be used as a new cooling procedure with improved cooling power and efficiency compared to the evaporative cooling currently used in atomic gases. This could lead to a new generation of experiments probing strong correlation effects of ultracold fermionic atoms at low temperatures.