Protecting operations on qudits from noise by continuous dynamical decoupling

We develop a procedure of generalized continuous dynamical decoupling (GCDD) for an ensemble d-level systems (qudits), allowing one to protect the action arbitrary multiqudit gate from general noise. first present our GCDD case qudit and apply it Hadamard acting on qutrit. This is done using model that, in principle, could be implemented three magnetic hyperfine states ground energy level Rb87 laser beams whose intensities phases are modulated according prescription. show that this allows generate continuously all possible SU(3) group operations which are, general, needed procedure. finally method can extended qudits, identical or not.Received 13 December 2019Revised 22 October 2020Accepted 15 February 2021DOI:https://doi.org/10.1103/PhysRevResearch.3.013235Published by American Physical Society under terms Creative Commons Attribution 4.0 International license. Further distribution work must maintain attribution author(s) published article's title, journal citation, DOI.Published SocietyPhysics Subject Headings (PhySH)Research AreasQuantum algorithmsQuantum computationQuantum controlQuantum fluctuations & noiseQuantum gatesQuantum information with atoms lightPhysical SystemsAlkali metalsAtomic ensembleQuantum Information