Chen, Y.-Y.; Jiang, Y.-Z.; Guan, X.-W.; Zhou, Qi
A central quantity of importance for ultracold atoms is contact, which measures two-body correlations at short distances in dilute systems. It appears in universal relations among thermodynamic quantities, such as large momentum tails, energy and dynamic structure factors, through the renowned Tan relations. However, a conceptual question remains open as to whether or not contact can signify phase transitions that are insensitive to short-range physics. Here we show that, near a continuous...[Show more]
Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.