Fast Preparation of W States by Designing the Evolution Operators with Rydberg Superatom
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Published:2023-10-18
Issue:1
Volume:7
Page:
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ISSN:2511-9044
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Container-title:Advanced Quantum Technologies
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language:en
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Short-container-title:Adv Quantum Tech
Author:
Zhang Wei‐Yue1,
Wang Cai‐Qing1,
Ji Yan‐Qiang1ORCID,
Shao Qiu‐Ping1,
Wang Ji‐Ping1,
Wang Jie1,
Yang Li‐Ping1,
Dong Li1,
Xiu Xiao‐Ming1ORCID
Affiliation:
1. College of Physical Science and Technology Bohai University Jinzhou 121013 China
Abstract
AbstractW states play an important role in quantum information processing and quantum computing. Here, it proposes a scheme for preparing W states by designing the evolution operators with Rydberg superatoms. It encodes quantum information on the effective energy level of the superatom, and construct shortcuts to adiabatic passages (STAP) by designing the evolution operators. Combined with Quantum Zeno dynamics and STAP, it can prepare three‐particle W states quickly and efficiently. In addition, the Rabi frequency in this scheme can be described as a linear superposition of Gaussian functions, which reduces the difficulty of practical experiment. The numerical simulation shows that the scheme is robust against decoherence, operational imperfection, and noise. At last, it generalizes this scheme to preparation of N‐particle W states.
Funder
National Natural Science Foundation of China
Foundation of Liaoning Province Education Administration
Natural Science Foundation of Liaoning Province
Liaoning Revitalization Talents Program
Subject
Electrical and Electronic Engineering,Computational Theory and Mathematics,Condensed Matter Physics,Mathematical Physics,Nuclear and High Energy Physics,Electronic, Optical and Magnetic Materials,Statistical and Nonlinear Physics