Projects per year
Abstract
We demonstrate a native CNOT gate between two individually addressed neutral atoms based on electromagnetically induced transparency. This protocol utilizes the strong long-range interactions of Rydberg states to enable conditional state transfer on the target qubit when operated in the blockade regime. An advantage of this scheme is it enables implementation of multiqubit CNOTk gates using a pulse sequence independent of qubit number, providing a simple gate for efficient implementation of digital quantum algorithms and stabilizer measurements for quantum error correction. We achieve a loss corrected gate fidelity of FCNOTcor=0.82(6), and prepare an entangled Bell state with FBellcor=0.66(5), limited at present by laser power. We present a number of technical improvements to advance this to a level required for fault-tolerant scaling.
Original language | English |
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Article number | 200501 |
Journal | Physical Review Letters |
Volume | 129 |
Issue number | 20 |
Early online date | 10 Nov 2022 |
DOIs | |
Publication status | Published - 11 Nov 2022 |
Keywords
- quantum information with atoms and light
- Rydberg atoms and molecules
- coherent control
- quantum information
- atomic, molecular and optical
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Dive into the research topics of 'Demonstration of a quantum gate using electromagnetically induced transparency'. Together they form a unique fingerprint.Projects
- 2 Finished
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A Hybrid Atom-Photon-Superconductor Quantum Interface
EPSRC (Engineering and Physical Sciences Research Council)
1/07/15 → 30/06/20
Project: Research Fellowship
Datasets
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Data for: "Demonstration of a Quantum Gate using Electromagnetically Induced Transparency"
McDonnell, K. (Creator), Keary, L. (Creator) & Pritchard, J. (Creator), University of Strathclyde, 12 Oct 2022
DOI: 10.15129/b883894e-434b-45ea-9b99-8db97081fea7
Dataset
Student theses
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Demonstration of a CNOT gate using electromagnetically induced transparency
Author: McDonnell, K., 15 Oct 2021Supervisor: Jeffers, J. (Supervisor) & Pritchard, J. (Supervisor)
Student thesis: Doctoral Thesis
Activities
- 1 Invited talk
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Scalable Qubit Arrays for Quantum Computation and Optimisation
Jonathan Pritchard (Speaker)
31 Mar 2023Activity: Talk or presentation types › Invited talk