Table‐top cosmology with Bose‐Einstein condensates

Table‐top cosmology with Bose‐Einstein condensates
复制标题

玻色爱因斯坦凝聚的桌面宇宙学

DOI:
--
复制
发表时间:
2013
期刊:
影响因子:
--
通讯作者:
F. Beyer
F. Beyer
中科院分区:
--
文献类型:
--
作者:
P. B. Blakie;F. Beyer

文献摘要

参考文献

被引文献

相似文献

宇宙膨胀是这样一种理论,即宇宙在时间之初经历了剧烈、快速的膨胀,从而产生了宇宙中许多可观测到的结构[1]。该理论得到了来自许多不同来源的间接观测证据的支持(例如参见[2])。然而,对通货膨胀进行直接的实验研究当然是不可能的。由于这个原因,人们对天体物理学的模拟模型产生了相当大的兴趣(例如参见[3]),其中在实验方便的系统中研究类似的行为。由于其清洁性和极大的灵活性,稀释的超冷原子气体(特别是玻色-爱因斯坦凝聚体)形成了一个实现此类模拟模型的有吸引力的系统。事实上,许多这样的桌面天体物理实验都是用玻色-爱因斯坦凝聚态进行的。例如,类似超新星的塌缩和爆炸动力学[4],通过使用费什巴赫共振修改原子间相互作用来控制,后来被解释为宇宙粒子的产生[5];比音速更快的凝结水流已被用来产生声波黑洞模拟[6];
Cosmic inflation is the theory thatthe universe underwent a violent,rapid expansion at the beginning oftime, giving rise to much of the ob-served structure in the universe [1].This theory is supported by indirectobservational evidence from manydifferent sources (e.g. see [2]). How-ever, direct experimental investiga-tion of inflation is of course impos-sible. For this reason there has beenconsiderableinterestinanalogmod-els for astrophysics (e.g. see [3]), inwhichanalogousbehaviorisstudiedin systems that are experimentallyconvenient.Due to their cleanness and greatflexibility, dilute ultra-cold atomicgases (particularly Bose-Einsteincondensates) form an attractivesystem for realizing such analogmodels. Indeed, a number of suchtable-top-astrophysics experimentshave been conducted with Bose-Einstein condensates. For example,supernova-like collapse and explo-sion dynamics [4], controlled bymodifying inter-atomic interactionsusing Feshbach resonances, andlater interpreted as cosmologicalparticle creation [5]; Faster-than-sound flow of a condensate hasbeen used to produce a sonic blackholeanalog[6];The
DOI: 10.1088/0067-0049/192/2/18
发表时间: 2011-02-01
影响因子: 8.7
作者:
Komatsu, E.;Smith, K. M.;Wright, E. L.
通讯作者: Wright, E. L.