activity
20032022
most citedExplicit formula for the Holevo bound for two-parameter qubit estimation problem

75 citations · 397 across the 31 of their papers we have counts for

collaborators

32 papers

quant-ph2022★ 6 cited

The gap persistence theorem for quantum multiparameter estimation

Lorcán O. Conlon, Jun Suzuki, Ping Koy Lam +1

One key aspect of quantum metrology, measurement incompatibility, is evident only through the simultaneous estimation of multiple parameters. The symmetric logarithmic derivative C…

quant-ph2022★ 1 cited

Effect of Wigner rotation on estimating unitary-shift parameter of relativistic spin-1/2 particle

Shin Funada, Jun Suzuki

We obtain the accuracy limit for estimating the expectation value of the position of a relativistic particle for an observer moving along one direction at a constant velocity. We u…

quant-ph2020★ 4 cited

Quantum-state estimation problem via optimal design of experiments

Jun Suzuki

In this paper, we study the quantum-state estimation problem in the framework of optimal design of experiments. We first find the optimal designs about arbitrary qubit models for p…

quant-ph2020

Error trade-off relations for two-parameter unitary model with commuting generators

Shin Funada, Jun Suzuki

We investigate whether a trade-off relation between the diagonal elements of the mean square error matrix exists for the two-parameter unitary models with mutually commuting genera…

quant-ph2020

Robust phase estimation of Gaussian states in the presence of outlier quantum states

Yukito Mototake, Jun Suzuki

In this paper, we investigate the problem of estimating the phase of a coherent state in the presence of unavoidable noisy quantum states. These unwarranted quantum states are repr…

quant-ph2020★ 57 cited

Efficient computation of the Nagaoka--Hayashi bound for multi-parameter estimation with separable measurements

Lorcán Conlon, Jun Suzuki, Ping Koy Lam +1

Finding the optimal attainable precisions in quantum multiparameter metrology is a non trivial problem. One approach to tackling this problem involves the computation of bounds whi…