Actions

Download Analytics Citations

Export to: EndNote  |  Zotero  |  Mendeley

Collections

This file is not currently in any collections.

Long-lived entanglement of molecules in magic-wavelength optical tweezers [dataset] Open Access

Realising quantum control and entanglement of particles is crucial for advancing both quantum technologies and fundamental science. Significant developments in this domain have been achieved in a variety of systems. In this context, ultracold polar molecules offer new and unique opportunities due to their more complex internal structure associated with vibration and rotation, coupled to the existence of long-range interactions. However, the same properties make molecules highly sensitive to their environment, impacting their coherence and utility in some applications. Here we show that by engineering an exceptionally controlled environment using rotationally-magic optical tweezers, we can achieve long-lived entanglement between pairs of molecules using detectable hertz-scale interactions. We prepare two-molecule Bell states with fidelity 0.924+0.013-0.016, limited by detectable leakage errors. When correcting for these errors, the fidelity is 0.976+0.014-0.016. We show that the second-scale entanglement lifetimes are limited solely by these errors, opening new avenues for quantum-enhanced metrology, ultracold chemistry and the use of rotational states for quantum simulation, quantum computation, and as quantum memories. The extension of precise quantum control to complex molecular systems will allow their additional degrees of freedom to be exploited across many domains of quantum science.

Descriptions

Resource type

Dataset

Contributors

Creator: Ruttley, Daniel K. ¹
Data collector: Ruttley, Daniel K. ¹
Data collector: Hepworth, Tom R. ¹
Data collector: Guttridge, Alexander ¹
Data collector: Cornish, Simon L. ¹

¹ Durham University

Funder

Engineering and Physical Sciences Research Council
Royal Society
Durham University
UKRI Frontier Research Grant

Research methods

Other description

Keyword

Ultracold molecules
Quantum entanglement
Coherent states
Optical tweezers
Physics
Quantum systems
Quantum-enhanced metrology

Subject

Ultracold molecules
Quantum entanglement
Coherent states
Optical tweezers
Quantum systems
Physics

Location

Language

Cited in

doi:10.48550/arXiv.2408.14904

Identifier

ark:/32150/r1bv73c047f
doi:10.15128/r1bv73c047f

Rights

Creative Commons Attribution 4.0 International (CC BY)

Publisher

Durham University

Date Created

File Details

Depositor

D.K. Ruttley

Date Uploaded

14 August 2024, 15:08:07

Date Modified

23 October 2024, 10:10:54

Audit Status

Audits have not yet been run on this file.

Characterization

File format: zip (ZIP Format)

Mime type: application/zip

File size: 872200

Last modified: 2024:10:23 10:03:18+01:00

Filename: Long-lived entanglement of molecules in magic-wavelength optical tweezers [dataset].zip

Original checksum: d0b9de6eeb6fd44b103a2dfaae802dc9