Experimental realization of a long-lived striped Bose-Einstein condensate induced by momentum-space hopping
Experimental realization of a long-lived striped Bose-Einstein condensate induced by momentum-space hopping
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动量空间跳跃引起的长寿命条纹玻色-爱因斯坦凝聚态的实验实现
DOI：
10.1103/physreva.99.051602
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发表时间：
2019
影响因子：
2.9
通讯作者：
Engels, Peter
中科院分区：
文献类型：
--
作者：
Bersano, Thomas M.;Hou, Junpeng;Mossman, Sean;Gokhroo, Vandna;Luo, Xi-Wang;Sun, Kuei;Zhang, Chuanwei;Engels, Peter
超固态相的研究在凝聚态物理和超冷原子物理领域引起了极大的关注。在这里，我们实验证明了一种实现超流条纹相在自旋轨道耦合玻色-爱因斯坦凝聚体采用弱光晶格诱导动量空间跳跃两个自旋轨道带极小值之间的路线。我们表征条纹基态的晶格耦合强度和自旋轨道失谐的函数，并找到良好的协议与平均场模拟。我们观察到相干拉比振荡的动量空间之间的两个带的最小值，并证明了一个长寿命的基态。我们的工作为探索超流条纹相及其奇异激发提供了一个令人兴奋和稳定的实验平台，这可能有助于揭示超固态的性质。
The search for supersolidlike phases has attracted great attention in the fields of condensed matter and ultracold atom physics. Here, we experimentally demonstrate a route for realizing a superfluid stripe phase in a spin-orbit coupled Bose-Einstein condensate by employing a weak optical lattice to induce momentum-space hopping between two spin-orbit band minima. We characterize the striped ground state as a function of lattice coupling strength and spin-orbit detuning and find good agreement with mean-field simulations. We observe coherent Rabi oscillations in momentum space between two band minima and demonstrate a long lifetime of the ground state. Our work offers an exciting and stable experimental platform for exploring superfluid stripe phases and their exotic excitations, which may shed light on the properties of supersolidlike states.
影响因子：
19.6
作者：
Chomaz L;van Bijnen RMW;Petter D;Faraoni G;Baier S;Becher JH;Mark MJ;Wächtler F;Santos L;Ferlaino F
通讯作者：
Ferlaino F
影响因子：
16.6
作者：
Khamehchi MA;Qu C;Mossman ME;Zhang C;Engels P
通讯作者：
Engels P
稠密超流体的流动
影响因子：
3
作者：
D. Thouless
通讯作者：
D. Thouless