论文标题
观察超对称性及其在被困的离子量子模拟器中的自发断裂
Observation of Supersymmetry and its Spontaneous Breaking in a Trapped Ion Quantum Simulator
论文作者
论文摘要
超对称性（SUSY）有助于解决高能物理学中的层次结构问题，并为将重力与其他基本相互作用统一性提供了自然基础。尽管是标准模型以外的最有前途的理论框架之一，但其自然界的直接实验证据仍然有待发现。在这里，我们报告了使用捕获的离子量子模拟器，报告了超对称量子力学（SUSY QM）模型的实验实现。我们证明了Susy在该模型和自发Susy Breaking中引起的能量变性。通过旋转偶联系统的部分量子状态断层扫描，我们明确测量了退化基态的增压，这些基态是骨super骨和纤维基因态的叠加。我们的工作表明，被困的离子量子模拟器是一个经济而强大的平台，可在单个良好控制的系统中研究多功能物理。
Supersymmetry (SUSY) helps solve the hierarchy problem in high-energy physics and provides a natural groundwork for unifying gravity with other fundamental interactions. While being one of the most promising frameworks for theories beyond the Standard Model, its direct experimental evidence in nature still remains to be discovered. Here we report experimental realization of a supersymmetric quantum mechanics (SUSY QM) model, a reduction of the SUSY quantum field theory for studying its fundamental properties, using a trapped ion quantum simulator. We demonstrate the energy degeneracy caused by SUSY in this model and the spontaneous SUSY breaking. By a partial quantum state tomography of the spin-phonon coupled system, we explicitly measure the supercharge of the degenerate ground states, which are superpositions of the bosonic and the fermionic states. Our work demonstrates the trapped-ion quantum simulator as an economic yet powerful platform to study versatile physics in a single well-controlled system.
