论文标题
开放量子系统中能源传输的数字量子模拟框架
Digital quantum simulation framework for energy transport in an open quantum system
论文作者
论文摘要
在模拟量子模拟器上模拟了光合作用Fenna-Mathews-Olson（FMO）复合物中显示的量子效应，例如环境辅助量子运输（ENAQT）。数字量子模拟在模拟模拟方面提供了更大的普遍性和灵活性。但是，开放量子系统的数字量子模拟面临理论挑战。人们不知道开发量子门操作员的连续时间主方程的解决方案。我们通过引入新的量子进化运算符，为ENAQT的数字量子模拟提供了一个理论框架。我们为操作员开发动力方程，并证明它是主方程的分析解决方案。例如，使用动态方程式，我们在数字设置中模拟了FMO复合物，从而再现了动力学的理论和实验证据。该框架为{量子电路}实现提供了一种最佳方法，从而使对数量的复杂性比已知方法降低了。可以将通用框架推算为研究其他开放量子系统。
Quantum effects such as the environment assisted quantum transport (ENAQT) displayed in photosynthetic Fenna-Mathews-Olson (FMO) complex has been simulated on analog quantum simulators. Digital quantum simulations offer greater universality and flexibility over analog simulations. However, digital quantum simulations of open quantum systems face a theoretical challenge; one does not know the solutions of the continuous time master equation for developing quantum gate operators. We give a theoretical framework for digital quantum simulation of ENAQT by introducing new quantum evolution operators. We develop the dynamical equation for the operators and prove that it is an analytical solution of the master equation. As an example, using the dynamical equations, we simulate the FMO complex in the digital setting, reproducing theoretical and experimental evidence of the dynamics. The framework gives an optimal method for {quantum circuit} implementation, giving a log reduction in complexity over known methods. The generic framework can be extrapolated to study other open quantum systems.
