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20112023
most citedParity Measurement is Sufficient for Phase Estimation at the Quantum Cramer-Rao Bound for Path-Symmetric States

94 citations · 128 across the 14 of their papers we have counts for

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8 papers · 1 filter

math.FA2023

Weak log-majorization between the geometric and Wasserstein means

Luyining Gan, Sejong Kim

There exist lots of distinct geometric means on the cone of positive definite Hermitian matrices such as the metric geometric mean, spectral geometric mean, log-Euclidean mean and…

math.FA2022

Revisit on spectral geometric mean

Luyining Gan, Sejong Kim

In this paper we introduce the limit, unique solution of the nonlinear equations, geodesic property, tolerance relations and pinch on the spectral geometric mean for two positive d…

math.FA2020

Mixture and interpolation of the parameterized ordered means

Sejong Kim

Loewner partial order plays a very important role in metric topology and operator inequality on the open convex cone of positive invertible operators. In this paper we consider a f…

math.FA2020★ 5 cited

Operator inequalities and gyrolines of the weighted geometric means

Sejong Kim

We consider in this paper two different types of the weighted geometric means of positive definite operators. We show the component-wise bijection of these geometric means and give…

math.FA2019

Tensor product and Hadamard product for the Wasserstein means

Jinmi Hwang, Sejong Kim

As one of the least squares mean, we consider the Wasserstein mean of positive definite Hermitian matrices. We verify in this paper the inequalities of the Wasserstein mean related…

math.FA2019

Parameterized Wasserstein mean with its properties

Sejong Kim

A new least squares mean of positive definite matrices for the divergence associated with the sandwiched quasi-relative entropy has been introduced. It generalizes the well-known W…

math.FA2018

Geometric Mean of Partial Positive Definite Matrices with Missing Entries

Hayoung Choi, Sejong Kim, Yuanming Shi

In this paper the geometric mean of partial positive definite matrices with missing entries is considered. The weighted geometric mean of two sets of positive matrices is defined,…

math.FA2018★ 2 cited

Bounds for the Wasserstein mean with applications to the Lie-Trotter mean

Jinmi Hwang, Sejong Kim

As the least squares mean for the Riemannian trace metric on the cone of positive definite matrices, the Riemannian mean with its computational and theoretical approaches has been…