Two-dimensional arrays of Bose-Einstein condensates: Interference and stochastic collapse dynamics
Year: 2024
Type: article
Abstract: We demonstrate two-dimensional arrays of Bose-Einstein condensates (BECs) as a new experimental platform with parallel quantum simulation capability. A defect-free array of up to 49 BECs is formed by loading a single BEC with 50 000 atoms into 7 × 7 optical wells. Each BEC is prepared with independent phases, confirmed by matterwave interference. Based on BEC arrays, we realize fast determination of the phase boundary of BECs with attractive interactions. We also observe the stochastic collapse dynamics from the distribution of atom numbers in the array. We show that the collapse of a BEC can occur much faster than the averaged decay of an ensemble. The BEC arrays enable new forms of experiments to drastically increase the measurement throughput and to quantum simulate, say, large 2D Josephson-junction arrays. Published by the American Physical Society 2024
Source: Physical Review Research
Institutions: State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University, University of Chicago, Collaborative Innovation Center of Quantum Matter, Beijing Academy of Quantum Information Sciences, Frontier Science Center for Quantum Information of the Ministry of Education of China
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,625
Awards: G3663148369, 用冷原子量子模拟实验研究强相互作用玻色子的量子输运性质, G5264878534, G7726297947, Novel Ferromagnetic Domains and Quantum Criticality with Bose Condensates in a Shaken Optical Lattice, G8234080679, Many-Body Echo, Topological Defects and Long-Range Interactions in Dressed Bose-Einstein Condensates, G8850666698
OpenAlex ID: W4405369314