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Calorimetry of a harmonically trapped Bose gas

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arxiv 1409.5494 v3 pith:KAHDZKUD submitted 2014-09-19 cond-mat.quant-gas

classification cond-mat.quant-gas
keywords condensateharmonicallytemperaturetrappedatomsbosebose-einsteincalorimetry
verification ladder T0 review T1 audit T2 compute T3 formal
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We experimentally study the energy-temperature relationship of a harmonically trapped Bose-Einstein condensate by transferring a known quantity of energy to the condensate and measuring the resulting temperature change. We consider two methods of heat transfer, the first using a free expansion under gravity and the second using an optical standing wave to diffract the atoms in the potential. We investigate the effect of interactions on the thermodynamics and compare our results to various finite temperature theories.

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