Wang, Z-Y;
Lang, JE;
Schmitt, S;
Lang, J;
Casanova, J;
McGuinness, L;
Monteiro, TS;
... Plenio, MB; + view all
(2019)
Randomization of Pulse Phases for Unambiguous and Robust Quantum Sensing.
Physical Review Letters
, 122
(20)
, Article 200403. 10.1103/PhysRevLett.122.200403.
Preview |
Text
Monteiro_Randomization of Pulse Phases for Unambiguous and Robust Quantum Sensing_VoR.pdf - Published Version Download (629kB) | Preview |
Abstract
We develop theoretically and demonstrate experimentally a universal dynamical decoupling method for robust quantum sensing with unambiguous signal identification. Our method uses randomization of control pulses to simultaneously suppress two types of errors in the measured spectra that would otherwise lead to false signal identification. These are spurious responses due to finite-width π pulses, as well as signal distortion caused by π pulse imperfections. For the cases of nanoscale nuclear-spin sensing and ac magnetometry, we benchmark the performance of the protocol with a single nitrogen vacancy center in diamond against widely used nonrandomized pulse sequences. Our method is general and can be combined with existing multipulse quantum sensing sequences to enhance their performance.
| Type: | Article |
|---|---|
| Title: | Randomization of Pulse Phases for Unambiguous and Robust Quantum Sensing |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.122.200403 |
| Publisher version: | http://doi.org/10.1103/PhysRevLett.122.200403 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10083242 |
Archive Staff Only
 |
View Item |
