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PhysRevLett.119.046802.pdf (1.4 MB)

High-fidelity single-shot singlet-triplet readout of precision-placed donors in silicon

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posted on 2023-06-09, 08:58 authored by M A Broome, T F Watson, D Keith, S K Gorman, M G House, J G Keizer, Samuel HileSamuel Hile, W Baker, M Y Simmons
In this work we perform direct single-shot readout of the singlet-triplet states in exchange coupled electrons confined to precision-placed donor atoms in silicon. Our method takes advantage of the large energy splitting given by the Pauli-spin blockaded (2,0) triplet states, from which we can achieve a single-shot readout fidelity of 98.4 ± 0.2%. We measure the triplet-minus relaxation time to be of the order 3 s at 2.5 T and observe its predicted decrease as a function of magnetic field, reaching 0.5 s at 1 T.

History

Publication status

  • Published

File Version

  • Published version

Journal

Physical Review Letters (PRL)

ISSN

0031-9007

Publisher

American Physical Society

Issue

4

Volume

119

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2018-01-12

First Open Access (FOA) Date

2018-01-12

First Compliant Deposit (FCD) Date

2018-01-12

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