Generation and manipulation of Schrödinger cat states in Rydberg atom arrays
Name
1905.05721.pdf
Description
Accepted version
Size
9.31 MB
Format
Unknown
Checksum (MD5)
63a01c0e948c95f81d243caabf37a396
Author(s)
Omran, A
Levine, H
Keesling, A
Semeghini, G
Wang, TT
Ebadi, S
Bernien, H
Zibrov, AS
Pichler, H
Choi, S
Date Issued
2019
Journal
Science
Publisher
American Association for the Advancement of Science (AAAS)
Version
Author's final manuscript
Abstract
2017 © The Authors Quantum entanglement involving coherent superpositions of macroscopically distinct states is among the most striking features of quantum theory, but its realization is challenging because such states are extremely fragile. Using a programmable quantum simulator based on neutral atom arrays with interactions mediated by Rydberg states, we demonstrate the creation of “Schrödinger cat” states of the Greenberger-Horne-Zeilinger (GHZ) type with up to 20 qubits. Our approach is based on engineering the energy spectrum and using optimal control of the many-body system. We further demonstrate entanglement manipulation by using GHZ states to distribute entanglement to distant sites in the array, establishing important ingredients for quantum information processing and quantum metrology.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Research Laboratory of Electronics
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1126/SCIENCE.AAX9743
