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Randall J, Bradley CE, van der Gronden FV, Galicia A, Abobeih MH, Markham M, Twitchen DJ, Machado F, Yao NY, Taminiau TH. Many-body-localized discrete time crystal with a programmable spin-based quantum simulator. Science 2021; 374:1474-1478. [PMID: 34735218 DOI: 10.1126/science.abk0603] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- J Randall
- QuTech, Delft University of Technology, PO Box 5046, 2600 GA Delft, Netherlands.,Kavli Institute of Nanoscience Delft, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
| | - C E Bradley
- QuTech, Delft University of Technology, PO Box 5046, 2600 GA Delft, Netherlands.,Kavli Institute of Nanoscience Delft, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
| | - F V van der Gronden
- QuTech, Delft University of Technology, PO Box 5046, 2600 GA Delft, Netherlands.,Kavli Institute of Nanoscience Delft, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
| | - A Galicia
- QuTech, Delft University of Technology, PO Box 5046, 2600 GA Delft, Netherlands.,Kavli Institute of Nanoscience Delft, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
| | - M H Abobeih
- QuTech, Delft University of Technology, PO Box 5046, 2600 GA Delft, Netherlands.,Kavli Institute of Nanoscience Delft, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
| | - M Markham
- Element Six Innovation, Fermi Avenue, Harwell Oxford, Didcot, Oxfordshire OX11 0QR, UK
| | - D J Twitchen
- Element Six Innovation, Fermi Avenue, Harwell Oxford, Didcot, Oxfordshire OX11 0QR, UK
| | - F Machado
- Department of Physics, University of California, Berkeley, CA 94720, USA.,Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - N Y Yao
- Department of Physics, University of California, Berkeley, CA 94720, USA.,Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - T H Taminiau
- QuTech, Delft University of Technology, PO Box 5046, 2600 GA Delft, Netherlands.,Kavli Institute of Nanoscience Delft, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, Netherlands
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Enhancing the Robustness of Dynamical Decoupling Sequences with Correlated Random Phases. Symmetry (Basel) 2020. [DOI: 10.3390/sym12050730] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
We show that the addition of correlated phases to the recently developed method of randomized dynamical decoupling pulse sequences can improve its performance in quantum sensing. In particular, by correlating the relative phases of basic pulse units in dynamical decoupling sequences, we are able to improve the suppression of the signal distortion due to π pulse imperfections and spurious responses due to finite-width π pulses. This enhances the selectivity of quantum sensors such as those based on NV centers in diamond.
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