近日,西北大学的刘思源及其研究团队取得一项新进展。经过不懈努力,他们对强量子能量隐形传态进行了研究。相关研究成果已于2024年11月18日发在国际知名学术期刊《物理评论A》上发表。
据悉,量子能量隐形传态(QET)是一种通过局部操作和经典通信(LOCC),实现能量提取的协议。
本文利用关联矩阵分析了量子能量隐形传态(QET),并发现其本质是一个量子导引过程。研究人员提出了一种扩展的QET协议,称为强QET协议,并定义了QET被动态,这表明量子关联并不是QET的充分条件。
研究人员还比较了在噪声信道中进行QET与直接能量提取方案的效果,结果显示该研究的方法在处理量子操作时具有优势。此外,研究人员将该方法扩展到N量子比特QET,并给出了数值示例。
附:英文原文
Title: Strong quantum energy teleportation
Author: Hao Fan, Feng-Lin Wu, Lu Wang, Shu-Qian Liu, Si-Yuan Liu
Issue&Volume: 2024/11/18
Abstract: Quantum energy teleportation (QET) is an energy extraction protocol via local operation and classical communication (LOCC). In this paper, we analyze QET with the correlation matrix and find the essence of QET is a quantum steering process. We propose an extended QET called strong QET protocol and define the QET passive state, which shows that quantum correlation is not a sufficient condition for QET. We also compare QET in noisy channels with direct energy extraction schemes, which indicates the advantage of our method in dealing with quantum operations. Furthermore, we extend the method to the N-qubit QET and give numerical examples.
DOI: 10.1103/PhysRevA.110.052424
Source: https://journals.aps.org/pra/abstract/10.1103/PhysRevA.110.052424
来源:科学网 小柯机器人