顶部碎裂稳定富原子吸引玻色-爱因斯坦凝聚体
On-top fragmentation stabilizes atom-rich attractive Bose-Einstein condensates
摘要：
众所周知，在三维空间中，吸引凝聚体不具有稳定的基态。广泛使用的Gross-Pitaevskii理论预测了亚稳态的存在，直到原子的临界数量$N_{\mathrm{cr}}^{\mathrm{GP}}$。它在这里表明，碎片亚稳态存在的原子数远高于$N_{\mathrm{cr}}^{\mathrm{GP}}$。碎片在空间上重叠得很厉害。得到的结果和分析解析以及数值。的影响进行了讨论。
英文摘要：
It is well known that attractive condensates do not posses a stable ground state in three dimensions. The widely used Gross-Pitaevskii theory predicts the existence of metastable states up to some critical number $N_{\mathrm{cr}}^{\mathrm{GP}}$ of atoms. It is demonstrated here that fragmented metastable states exist for atom numbers well above $N_{\mathrm{cr}}^{\mathrm{GP}}$. The fragments are strongly overlapping in space. The results are obtained and analyzed analytically as well as numerically. The implications are discussed.
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