论文标题
通过对Ancilla的重复测量引起的非热汉密尔顿人的双重纠缠产生
Two-qubit entanglement generation through non-Hermitian Hamiltonians induced by repeated measurements on an ancilla
论文作者
论文摘要
与经典系统相反，非富米汉顿动力学对量子系统的实际实施是一个挑战，因为能量增益和耗散的过程基于痕量保留的基本的Hermitian系统 - 环境动力学。最近，已经提出了在Anicillary Qubit上进行重复测量的工程非官员哈密顿量的计划。主系统的诱导条件动力学是由从该过程中引起的有效的非热汉顿式汉密尔顿人描述的。在本文中，我们通过将其应用于物理相关的多旋转模型来证明该协议的有效性，这表明有效的非富米汉密尔顿人将系统驱动到最大纠缠的固定状态。此外，我们报告了一种新的配方，可以模拟一个物理场景，其中可以模拟由给定非汉密尔顿模型代表的物理系统的量子动力学。强调了这种方案的物理含义和广泛的范围潜在应用。
In contrast to classical systems, actual implementation of non-Hermitian Hamiltonian dynamics for quantum systems is a challenge because the processes of energy gain and dissipation are based on the underlying Hermitian system-environment dynamics that is trace preserving. Recently, a scheme for engineering non-Hermitian Hamiltonians as a result of repetitive measurements on an anicillary qubit has been proposed. The induced conditional dynamics of the main system is described by the effective non-Hermitian Hamiltonian arisng from the procedure. In this paper we demonstrate the effectiveness of such a protocol by applying it to physically relevant multi-spin models, showing that the effective non-Hermitian Hamiltonian drives the system to a maximally entangled stationary state. In addition, we report a new recipe to construct a physical scenario where the quantum dynamics of a physical system represented by a given non-Hermitian Hamiltonian model may be simulated. The physical implications and the broad scope potential applications of such a scheme are highlighted.
