【摘 要】
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In this paper.We demonstrate an approach to determine the phase transition point and critical temperature of Bose-Einstein condensation.During the fitting seque
【机 构】
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Key Laboratory for Quantum Information and Measurements of Ministry of Education,Peking University,B
论文部分内容阅读
In this paper.We demonstrate an approach to determine the phase transition point and critical temperature of Bose-Einstein condensation.During the fitting sequence of time-of-flight images,for just one picture we take four kinds of different calculations instead of only one.By calculating the quantitative least-square errors,which have always been neglected before,we find out that this value can act as a criterion to judge the status of atom clouds.Using this criterion,we can not only discriminate the status around the phase transition point,but can aiso find the critical point precisely.Also with this method,we can achieve the totally automatical running of calculating programs without humans judgments.
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