[en] We report the first protocol specifically designed to generate anticoherent spin-j states at different orders. The protocol consists of cycles of a rotation pulse about an axis fol- lowed by a squeezing pulse in a perpendicular direction. To protect these states, we develop dynamical decoupling techniques using group-based sequence design and the dynamically corrected gate formalism. We analyze key sources of dephasing, disorder, and dipole-dipole interactions and assess the effectiveness of our methods in preserving coherence. Potential applications of the produced anticoherent spin states include quantum sensing and studies related to quantum entanglement.
Disciplines :
Physics
Author, co-author :
Denis, Jérôme ; Université de Liège - ULiège > Complex and Entangled Systems from Atoms to Materials (CESAM)
Read, Colin ; Université de Liège - ULiège > Complex and Entangled Systems from Atoms to Materials (CESAM)
Martin, John ; Université de Liège - ULiège > Département de physique > Optique quantique
Language :
English
Title :
Coherent generation and protection of anticoherent spin states
F.R.S.-FNRS - Fonds de la Recherche Scientifique FWO - Fonds Wetenschappelijk Onderzoek Vlaanderen
Funding number :
EOS project 40007526
Funding text :
JM acknowledges the FWO and the F.R.S.-FNRS for their funding as part of the Excellence of Science program (EOS project 40007526). Computational resources were provided by the Consortium des Equipements de Calcul Intensif (CECI), funded by the Fonds de la Recherche Scientifique de Belgique (F.R.S.-FNRS) under Grant No. 2.5020.11.
