Description
Optically trapped mixed-species single atom array with arbitrary geometry is an attractive and promising platform for various applications, because tunable quantum system with multiple components provides extra degrees of freedom for experimental control. Here, we report the first demonstration of two-dimensional $6\times4$ dual-species atom assembly with a filling fraction of 0.88 (0.89) for $^{85}$Rb ($^{87}$Rb) atoms[1]. This mixed-species atomic synthesis is achieved via rearranging initially randomly distributed atoms by a sorting algorithm (heuristic heteronuclear algorithm) which is designed for bottom-up atom assembly with both user-defined geometries and two-species atom number ratios. Combined with our previous work on heteronuclear entanglement[2],high-fidelity single atom operations[3],balanced coherence times of heteronuclear atomic qubits[4] and the full control of the internal and external degrees of heteronuclear atoms[5], we have build a fully tunable hybrid-atom system with scalable advantages which is a good starting point for high-fidelity quantum logic, many-body quantum simulation and single molecule array formation.
Reference
[1] Cheng Sheng,et al. Defect-Free Arbitrary-Geometry Assembly of Mixed-Species Atom Arrays, Phys. Rev. Lett. 128, 083202 (2022).
[2] Yong Zeng, et al. Entangling Two Individual Atoms of Different Isotopes via Rydberg Blockade,Phys. Rev. Lett. 119, 160502 (2017).
[3] Cheng Sheng, et al. High-Fidelity Single-Qubit Gates on Neutral Atoms in a Two-Dimensional Magic-Intensity Optical Dipole Trap Array, Phys. Rev. Lett. 121, 240501 (2018).
[4] Ruijun Guo, et al. Balanced Coherence Times of Atomic Qubits of Different Species in a Dual 3 $\times$ 3 Magic-Intensity Optical Dipole Trap Array,Phys. Rev. Lett. 124, 153201 (2020).
[5] Xiaodong He, et al. Coherently forming a single molecule in an optical trap Science 370, 331(2020).
| Presenter name | Xu,Peng |
|---|---|
| How will you attend ICAP-27? | I am planning on virtual registration for online attendance |
