Protecting operations on qudits from noise by continuous dynamical decoupling

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...

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Main Authors: Reginaldo de Jesus Napolitano, Felipe Fernandes Fanchini, Adonai Hilario da Silva, Bruno Bellomo
Format: Article
Language:English
Published: American Physical Society 2021-03-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.3.013235
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author Reginaldo de Jesus Napolitano
Felipe Fernandes Fanchini
Adonai Hilario da Silva
Bruno Bellomo
author_facet Reginaldo de Jesus Napolitano
Felipe Fernandes Fanchini
Adonai Hilario da Silva
Bruno Bellomo
author_sort Reginaldo de Jesus Napolitano
collection DOAJ
description 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 ^{87}Rb 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.
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spelling doaj.art-af379c35216e44388599541dc4c4e9892024-04-12T17:08:13ZengAmerican Physical SocietyPhysical Review Research2643-15642021-03-013101323510.1103/PhysRevResearch.3.013235Protecting operations on qudits from noise by continuous dynamical decouplingReginaldo de Jesus NapolitanoFelipe Fernandes FanchiniAdonai Hilario da SilvaBruno BellomoWe 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 ^{87}Rb 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.http://doi.org/10.1103/PhysRevResearch.3.013235
spellingShingle Reginaldo de Jesus Napolitano
Felipe Fernandes Fanchini
Adonai Hilario da Silva
Bruno Bellomo
Protecting operations on qudits from noise by continuous dynamical decoupling
Physical Review Research
title Protecting operations on qudits from noise by continuous dynamical decoupling
title_full Protecting operations on qudits from noise by continuous dynamical decoupling
title_fullStr Protecting operations on qudits from noise by continuous dynamical decoupling
title_full_unstemmed Protecting operations on qudits from noise by continuous dynamical decoupling
title_short Protecting operations on qudits from noise by continuous dynamical decoupling
title_sort protecting operations on qudits from noise by continuous dynamical decoupling
url http://doi.org/10.1103/PhysRevResearch.3.013235
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