A C++ library using quantum trajectories to solve quantum master equations

Abstract
Quantum trajectory methods can be used for a wide range of open quantum systems to solve the master equation by unravelling the density operator evolution into individual stochastic trajectories in Hilbert space. This C++ class library offers a choice of integration algorithms for three important unravellings of the master equation. Different physical systems are modelled by different Hamiltonians and environment operators. The program achieves flexibility and user friendliness, without sacri...

Title of program: Quantum trajectory class library
Catalogue Id: ADFQ_v1_0

Nature of problem
Open quantum systems, i.e., systems whose interaction with the environment cannot be neglected, occur in a variety of contexts. Examples are quantum optics, atomic and molecular physics and quantum computers. If the time evolution of the system is approximately Markovian, it can be described by a master equation of Lindblad form [1], a first order differential equation for the density operator. Solving the master equation is the principal purpose of the program. Since the state and operator clas ...

Versions of this program held in the CPC repository in Mendeley Data
ADFQ_v1_0; Quantum trajectory class library; 10.1016/S0010-4655(97)00019-2

This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)

摘要
量子轨迹方法可应用于多种开放量子系统，通过将密度算符的演化分解为希尔伯特空间中单个随机轨迹来解决主方程。本C++类库提供了主方程三种重要分解的积分算法选择。不同的物理系统通过不同的哈密顿量和环境算子进行建模。该程序在保持灵活性和用户友好性的同时，并未牺牲...

程序名称：量子轨迹类库
目录ID：ADFQ_v1_0

问题性质
开放量子系统，即与环境相互作用不可忽略的系统，在各种情境中均有出现。例如，量子光学、原子和分子物理学以及量子计算机等。如果系统的时变近似马尔可夫，则可以用林德布莱德形式的主方程[1]来描述，该方程为一阶微分方程，用于描述密度算符。解决主方程是程序的主要目的。由于状态和算符分类...

此程序版本存放在Mendeley数据中CPC程序库
ADFQ_v1_0；量子轨迹类库；10.1016/S0010-4655(97)00019-2

该程序已从贝尔法斯特女王大学（1969-2019）持有的CPC程序库中导入。