An interleaved sampling scheme for the characterization of single qubit dynamics

TL;DR

This paper introduces an interleaved sampling method to efficiently characterize single qubit dynamics, including Hamiltonian and decoherence, reducing measurement time compared to traditional sampling techniques.

Contribution

The paper presents a novel interleaved sampling approach that significantly decreases the number of measurements needed for qubit characterization.

Findings

Interleaved sampling reduces measurement time proportionally to sample rate ratio.

The method accurately characterizes qubit Hamiltonian and decoherence.

Compared to Nyquist-Shannon, the approach offers efficiency improvements.

Abstract

In this paper, we demonstrate that interleaved sampling techniques can be used to characterize the Hamiltonian of a qubit and its environmental decoherence rate. The technique offers a significant advantage in terms of the number of measurements that are required to characterize a qubit. When compared to the standard Nyquist-Shannon sampling rate, the saving in the total measurement time for the interleaved method is approximately proportional to the ratio of the sample rates.