Enantiospecific state transfer on a tight lower bound of energy-time costs
Phys. Rev. A 113, 043117 – Published 14 April, 2026
DOI: https://doi.org/10.1103/zstx-lxm8
Abstract
Enantiospecific state transfer is a special quantum control problem whose importance is emphasized due to its potential applications in enantiodetection and enantioseparation. However, crucial discussions about obtaining highly efficient enantiospecific state transfer working on the tight lower bound of energy-time costs were missing. Here, we establish a frame to systematically study this issue by mapping the control protocol to the curve in the parameter space that is determined by the evolution of control fields and the efficiency of enantiospecific state transfer. We derive a tight lower bound on the conjoint costs, considering factors such as time, energy input from control fields, and the efficiency of enantiospecific state transfer. This leads to the formulation of a different criterion for evaluating and improving enantiospecific state transfer techniques. Furthermore, we present an optimal approach for implementing highly efficient control protocols with minimal time-energy expenditure.
