Quantum Simulation of the Klein Paradox with Trapped Ions
Quantum Simulation of the Klein Paradox with Trapped Ions
复制标题
DOI：
10.1103/physrevlett.106.060503
复制
发表时间：
2011-02-11
影响因子：
8.6
通讯作者：
Roos, C. F.
中科院分区：
文献类型：
--
作者：
Gerritsma, R.;Lanyon, B. P.;Roos, C. F.
我们报告了利用捕获离子的相对论散射动力学的量子模拟。散射粒子的模拟状态被编码在离子的电子和振动状态中，代表相对论波函数的离散和连续分量。多个激光场和辅助离子模拟了在散射势存在下狄拉克方程产生的动力学。粒子波包的测量和重建使散射过程的逐帧可视化成为可能。通过精确地设计一系列外部势，我们能够模拟教科书中的相对论散射实验，并在模拟量子模拟器中研究克莱因隧道。我们描述了解决当前经典计算能力之外的问题的扩展。
We report on quantum simulations of relativistic scattering dynamics using trapped ions. The simulated state of a scattering particle is encoded in both the electronic and vibrational state of an ion, representing the discrete and continuous components of relativistic wave functions. Multiple laser fields and an auxiliary ion simulate the dynamics generated by the Dirac equation in the presence of a scattering potential. Measurement and reconstruction of the particle wave packet enables a frame-by-frame visualization of the scattering processes. By precisely engineering a range of external potentials we are able to simulate text book relativistic scattering experiments and study Klein tunneling in an analogue quantum simulator. We describe extensions to solve problems that are beyond current classical computing capabilities.