具有二元结果测量的量子隐形传态

IF 5 2区 物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY
Jingyan Feng, Mohan Zhang, Matteo Fadel and Tim Byrnes
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引用次数: 0

摘要

我们提出了一种涉及光束分裂操作和二进制结果测量的隐形传态协议,例如宇称测量。这些操作使用Jaynes-Cummings hamilton的色散体系可以直接实现,使我们的协议适用于广泛的平台,包括捕获离子,电路量子电动力学和声动力学系统。在这些平台中,玻色子模式的同差测量不如色散测量自然,使得标准的连续变量隐形传态不适合。在我们的协议中,Alice拥有两个玻色子模式而Bob拥有一个单一模式。通过对猫态执行分束操作,在Alice和Bob之间创建纠缠模对。由cat状态编码的未知量子比特状态在经过分束操作、测量序列和条件校正后从Alice传送到Bob。在多次测量的情况下,可以获得近乎完美的保真度。我们讨论了在各种情况下使保真度最大化的最优参数。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Quantum teleportation of cat states with binary-outcome measurements
We propose a teleportation protocol involving beam splitting operations and binary-outcome measurements, such as parity measurements. These operations have a straightforward implementation using the dispersive regime of the Jaynes–Cummings Hamiltonian, making our protocol suitable for a broad class of platforms, including trapped ions, circuit quantum electrodynamics and acoustodynamics systems. In these platforms homodyne measurements of the bosonic modes are less natural than dispersive measurements, making standard continuous variable teleportation unsuitable. In our protocol, Alice is in possession of two bosonic modes and Bob a single mode. An entangled mode pair between Alice and Bob is created by performing a beam splitter operation on a cat state. An unknown qubit state encoded by cat states is then teleported from Alice to Bob after a beamsplitting operation, measurement sequence, and a conditional correction. In the case of multiple measurements, near-perfect fidelity can be obtained. We discuss the optimal parameters in order to maximize the fidelity under a variety of scenarios.
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来源期刊
Quantum Science and Technology
Quantum Science and Technology Materials Science-Materials Science (miscellaneous)
CiteScore
11.20
自引率
3.00%
发文量
133
期刊介绍: Driven by advances in technology and experimental capability, the last decade has seen the emergence of quantum technology: a new praxis for controlling the quantum world. It is now possible to engineer complex, multi-component systems that merge the once distinct fields of quantum optics and condensed matter physics. Quantum Science and Technology is a new multidisciplinary, electronic-only journal, devoted to publishing research of the highest quality and impact covering theoretical and experimental advances in the fundamental science and application of all quantum-enabled technologies.
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