{"title":"Superadiabatic scheme for fast implement quantum phase gates and prepare cluster states","authors":"Y. Liu, W. Li, J. P. Wang, Y. Q. Ji","doi":"10.1007/s11128-024-04554-z","DOIUrl":null,"url":null,"abstract":"<div><p>In this paper, we propose an effective scheme for rapidly implementing <span>\\(\\pi \\)</span> phase gate in a two-distant-atom–cavity system by combining superadiabatic scheme and quantum Zeno dynamics to construct shortcuts to adiabatic passage. As a typical application of the fast phase gates, a creation of <i>N</i>-atom cluster states is put forward. The influence of various decoherence processes such as atomic spontaneous emission and cavity decay on the fidelity is discussed. Numerical simulations show that the scheme is robust against decoherence caused by atomic spontaneous emission and cavity decay. In this work, superadiabatic shortcuts are used to prepare cluster states for the first time, which is faster than the traditional adiabatic passage technique.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"23 10","pages":""},"PeriodicalIF":2.2000,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Quantum Information Processing","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s11128-024-04554-z","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PHYSICS, MATHEMATICAL","Score":null,"Total":0}
引用次数: 0
Abstract
In this paper, we propose an effective scheme for rapidly implementing \(\pi \) phase gate in a two-distant-atom–cavity system by combining superadiabatic scheme and quantum Zeno dynamics to construct shortcuts to adiabatic passage. As a typical application of the fast phase gates, a creation of N-atom cluster states is put forward. The influence of various decoherence processes such as atomic spontaneous emission and cavity decay on the fidelity is discussed. Numerical simulations show that the scheme is robust against decoherence caused by atomic spontaneous emission and cavity decay. In this work, superadiabatic shortcuts are used to prepare cluster states for the first time, which is faster than the traditional adiabatic passage technique.
本文通过结合超绝热方案和量子芝诺动力学来构建绝热通道的捷径，提出了一种在双间距原子腔系统中快速实现（\pi \）相门的有效方案。作为快速相门的典型应用，提出了一种 N 原子簇态的创建。讨论了原子自发辐射和空穴衰变等各种退相干过程对保真度的影响。数值模拟表明，该方案对原子自发辐射和空穴衰变引起的退相干具有很强的抵御能力。在这项工作中，首次使用了超绝热捷径来制备簇态，这比传统的绝热通过技术更快。
期刊介绍：
Quantum Information Processing is a high-impact, international journal publishing cutting-edge experimental and theoretical research in all areas of Quantum Information Science. Topics of interest include quantum cryptography and communications, entanglement and discord, quantum algorithms, quantum error correction and fault tolerance, quantum computer science, quantum imaging and sensing, and experimental platforms for quantum information. Quantum Information Processing supports and inspires research by providing a comprehensive peer review process, and broadcasting high quality results in a range of formats. These include original papers, letters, broadly focused perspectives, comprehensive review articles, book reviews, and special topical issues. The journal is particularly interested in papers detailing and demonstrating quantum information protocols for cryptography, communications, computation, and sensing.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
