Marques B, Matoso A A, Pimenta W M, Gutiérrez-Esparza A J, Santos M F, Pádua S
Departamento de Física, Universidade Federal de Minas Gerais, caixa postal 702, 30123-970, Belo Horizonte, MG - Brazil.
Department of Physics, Stockholm University, S-10691 Stockholm, Sweden.
Sci Rep. 2015 Nov 3;5:16049. doi: 10.1038/srep16049.
We experimentally perform the simulation of open quantum dynamics in single-qudit systems. Using a spatial light modulator as a dissipative optical device, we implement dissipative-dynamical maps onto qudits encoded in the transverse momentum of spontaneous parametric down-converted photon pairs. We show a well-controlled technique to prepare entangled qudits states as well as to implement dissipative local measurements; the latter realize two specific dynamics: dephasing and amplitude damping. Our work represents a new analogy-dynamical experiment for simulating an open quantum system.
我们通过实验对单量子比特系统中的开放量子动力学进行了模拟。利用空间光调制器作为耗散光学器件，我们在由自发参量下转换光子对的横向动量编码的量子比特上实现了耗散动力学映射。我们展示了一种控制良好的技术，用于制备纠缠量子比特态以及实现耗散局部测量；后者实现了两种特定的动力学：退相和幅度衰减。我们的工作代表了一种用于模拟开放量子系统的新型类比动力学实验。
