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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Protecting operations on qudits from noise by continuous dynamical decoupling

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Napolitano, Reginaldo de Jesus [1] ; Fanchini, Felipe Fernandes [2] ; da Silva, Adonai Hilario [1] ; Bellomo, Bruno [3]
Total Authors: 4
[1] Univ Sao Paulo, Sao Carlos Inst Phys, POB 369, BR-13560970 Sao Carlos, SP - Brazil
[2] UNESP Univ Estadual Paulista, Fac Ciencias, BR-17033360 Bauru, SP - Brazil
[3] Univ Bourgogne Franche Comte, Inst UTINAM, CNRS, Observ Sci Univers THETA, UMR 6213, 41 Bis Ave Observ, F-25010 Besancon - France
Total Affiliations: 3
Document type: Journal article
Source: PHYSICAL REVIEW RESEARCH; v. 3, n. 1 MAR 12 2021.
Web of Science Citations: 0

We develop a procedure of generalized continuous dynamical decoupling (GCDD) for an ensemble of d-level systems (qudits), allowing one to protect the action of an arbitrary multiqudit gate from general noise. We first present our GCDD procedure for the case of an arbitrary qudit and apply it to the case of a Hadamard gate acting on a qutrit. This is done using a model that, in principle, could be implemented using the three magnetic hyperfine states of the ground energy level of Rb-87 and laser beams whose intensities and phases are modulated according to our prescription. We show that this model allows one to generate continuously all the possible SU(3) group operations which are, in general, needed to apply the GCDD procedure. We finally show that our method can be extended to the case of an ensemble of qudits, identical or not. (AU)

FAPESP's process: 18/00796-3 - Quantum-information processing under the auspices of the scattering-matrix formalism
Grantee:Reginaldo de Jesus Napolitano
Support type: Regular Research Grants
FAPESP's process: 19/05445-7 - Artificial intelligence and its applications in quantum physics
Grantee:Felipe Fernandes Fanchini
Support type: Regular Research Grants