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Bose–Einstein Condensation Beyond the Gross–Pitaevskii Regime
Annales Henri Poincaré ( IF 1.5 ) Pub Date : 2020-12-26 , DOI: 10.1007/s00023-020-01004-1
Arka Adhikari , Christian Brennecke , Benjamin Schlein

We consider N bosons in a box with volume one, interacting through a two-body potential with scattering length of the order \(N^{-1+\kappa }\), for \(\kappa >0\). Assuming that \(\kappa \in (0;1/43)\), we show that low-energy states exhibit Bose–Einstein condensation and we provide bounds on the expectation and on higher moments of the number of excitations.



中文翻译:

超越总皮塔耶夫斯基政权的玻色-爱因斯坦凝聚态

我们将N个玻色子放在一个体积为1的盒子中,通过两体势相互作用,其散射长度为\(N ^ {-1+ \ kappa} \),对于\(\ kappa> 0 \)。假设\(\ kappa in(0; 1/43)\),我们表明低能态表现出Bose-Einstein凝聚,并且我们为期望值和更高数量的激发提供了边界。

更新日期:2020-12-26
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