论文标题
快速计算量子多体状态的球形空间函数
Fast computation of spherical phase-space functions of quantum many-body states
论文作者
论文摘要
量子设备正在准备越来越复杂的纠缠量子状态。鉴于这些状态的增加，如何有效研究这些状态？诸如Wigner功能之类的相位空间提供了合适的框架。我们专注于单个Qudits的有限维量子状态或多个Qubits的对称状态的相位空间。我们提出了有效计算相应的相位函数的方法，这些函数至少比传统方法快。现在，使用这些相位空间技术可以有效地研究较大维度的量子多体状态。
Quantum devices are preparing increasingly more complex entangled quantum states. How can one effectively study these states in light of their increasing dimensions? Phase spaces such as Wigner functions provide a suitable framework. We focus on phase spaces for finite-dimensional quantum states of single qudits or permutationally symmetric states of multiple qubits. We present methods to efficiently compute the corresponding phase-space functions which are at least an order of magnitude faster than traditional methods. Quantum many-body states in much larger dimensions can now be effectively studied by experimentalists and theorists using these phase-space techniques.
