Relativistic motion enhanced quantum estimation of $$\kappa $$ κ -deformation of spacetime

摘要: We probe the $$\kappa $$ -deformation of spacetime using a two-level atom as detector coupled to -deformed massless scalar field which is invariant under -Poincare algebra and written in commutative spacetime. To address quantum bound estimability deformation parameter , we perform measurements on maximize value Fisher information over all possible preparations. prove that population measurement optimal estimation . In particular, show relativistic motion affects precision can effectively improve this comparing static case by many orders magnitude.