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Data for Deep three-dimensional solid-state qubit arrays with long-lived spin coherence

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Stephen, Colin J., Green, Ben L., Lekhai, Yashna, Weng, L., Hill, P., Johnson, S., Frangeskou, Angelo, Diggle, Phil .L., Strain, Michael J., Gu, E., Newton, Mark E., Smith, J. M., Salter , P. S. and Morley, G. W. (2019) Data for Deep three-dimensional solid-state qubit arrays with long-lived spin coherence. [Dataset]

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Abstract

Nitrogen vacancy (NV) centers in diamond show promise for quantum computing, communication and sensing. However, the best current method for entangling two NV centers requires that each one is in a separate cryostat, which is not scalable. Here we show that single NV centers can be laser-written 6-15 µm deep inside of a diamond with spin coherence times that are an order of magnitude longer than previous laser-written NV centers and at least as long as naturally-occurring NV centers. This depth is suitable for integration with solid immersion lenses or optical cavities and we present depth-dependent T2 measurements. 200,000 of these NV centers would fit into one diamond.

Item Type: Dataset
Divisions: Faculty of Science > Physics
Type of Data: Experimental data
Publisher: Department of Physics, University of Warwick
Official Date: 19 December 2019
Dates:
DateEvent
18 October 2019Created
19 December 2019Published
Date of first compliant deposit: 19 December 2019
Status: Not Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access
Copyright Holders: University of Warwick
Description:

Data is organised in 3 folders: before-annealing, after-annealing and processing:-
before-annealing contains data from before the diamond was annealed
after-annealing contains data from after the 3h 1000C anneal

Below these levels the data is divided by pitch (2um, 3um, 5um) and by array as labelled in the
map in the SI. Below this level data for pulsed microwave and automated measurements is organised
by site address (as labelled in per-layer POI images). e.g. M09-11 can be found on array M, 9um deep

Some additional HBT data was gathered seperately and is labelled by site.

Most of the non-imaging data has been captured using Qudi:
https://github.com/Ulm-IQO/qudi
http://doi.org/10.1016/j.softx.2017.02.001
https://github.com/WarwickEPR/qudi
and the .dat files contain raw ASCII table data (gzip compressed) with a header describing the meaning
of each column.

Processing of the data used a variety of tools (which can be identified by file extensions) including: Matlab (.m,.mat), R (.R), shell script (.sh), Perl (.pl), Fiji/ImageJ and ImageMagick. Microscopy imaging was captured with a Leica transmission microscope (output converted from tiff to jpeg for space efficiency).

README files in sections may add additional information where the usage of scripts and interpretation of files needs further documentation.
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
UNSPECIFIED[RS] Royal Societyhttp://dx.doi.org/10.13039/501100000288
UNSPECIFIEDFraunhofer Centre for Applied PhotonicsUNSPECIFIED
EP/L015315/1 [EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
EP/M013243/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
EP/R004803/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
Related URLs:
Contributors:
ContributionNameContributor ID
DepositorStephen, Colin J.66767

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