论文标题
碰撞模型可以有效地模拟任何多部分马尔可夫量子动力学
Collision models can efficiently simulate any multipartite Markovian quantum dynamics
论文作者
论文摘要
我们介绍了根据子系统和Ancillae之间的基本相互作用定义的多部分碰撞模型，并证明它可以模拟任何多部分开放量子系统的马尔可夫动力学。我们开发了一种方法来估计任何重复交互模型绑定的分析误差，我们使用它来证明我们方案的误差显示出最佳缩放率。最后，我们将多部分碰撞模型的简单分解为基本量子门，并表明它可以根据量子计算机在量子计算机上有效模拟，根据耗散的量子教会定理，即需要多项式资源。
We introduce the multipartite collision model, defined in terms of elementary interactions between subsystems and ancillae, and show that it can simulate the Markovian dynamics of any multipartite open quantum system. We develop a method to estimate an analytical error bound for any repeated interactions model, and we use it to prove that the error of our scheme displays an optimal scaling. Finally, we provide a simple decomposition of the multipartite collision model into elementary quantum gates, and show that it is efficiently simulable on a quantum computer according to the dissipative quantum Church-Turing theorem, i.e. it requires a polynomial number of resources.
