Abstract
AbstractModern quantum technologies rely crucially on techniques to mitigate quantum decoherence; these techniques can be either passive, achieved for example via materials engineering, or active, typically achieved via pulsed monochromatic driving fields applied to the qubit. Using a solid-state defect spin coupled to a microwave-driven spin bath, we experimentally demonstrate a decoherence mitigation method based on spectral engineering of the environmental noise with a polychromatic drive waveform, and show that it outperforms monochromatic techniques. Results are in agreement with quantitative modeling, and open the path to active decoherence protection using custom-designed waveforms applied to the environment rather than the qubit.
Funder
U.S. Department of Energy
United States Department of Defense | Defense Advanced Research Projects Agency
National Science Foundation
Hertz Foundation
Publisher
Springer Science and Business Media LLC
Subject
Computational Theory and Mathematics,Computer Networks and Communications,Statistical and Nonlinear Physics,Computer Science (miscellaneous)
Reference43 articles.
1. Zurek, W.H. In Quantum Decoherence: Poincaré Seminar 2005, (eds. Duplantier, B. & Raimond, J.-M. & Rivasseau, V.) Ch. 1 (Birkhäuser Basel, 2007).
2. Schlosshauer, M. Quantum decoherence. Phys. Rep. 831, 1–57 (2019).
3. Acín, A. et al. The quantum technologies roadmap: a european community view. New J. Phys. 20, 080201 (2018).
4. Quintana, C. M. et al. Characterization and reduction of microfabrication-induced decoherence in superconducting quantum circuits. Appl. Phys. Lett. 105, 062601 (2014).
5. Kumar, P. et al. Origin and reduction of 1/f magnetic flux noise in superconducting devices. Phys. Rev. Appl. 6, 041001 (2016).
Cited by
7 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献