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20242026
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math.NA2026

Quantum preconditioning method for finite difference discretizations of the Poisson equation via Schrödingerization

Shi Jin, Nana Liu, Chuwen Ma +1

We present a quantum preconditioning framework for solving linear systems arising from a finite difference discretization of the Poisson equation. It is based on the combination of…

math.NA2025

On the Schrödingerization method for linear non-unitary dynamics with optimal dependence on matrix queries

Shi Jin, Nana Liu, Chuwen Ma +2

The Schrödingerization method converts linear partial and ordinary differential equations with non-unitary dynamics into systems of Schrödinger-type equations with unitary evolut…

math.NA2025

Quantum simulation of Helmholtz equations via Schr{ö}dingerization

Anjiao Gu, Shi Jin, Chuwen Ma

The Helmholtz equation is a prototypical model for time-harmonic wave propagation. Numerical solutions become increasingly challenging as the wave number grows, due to the equa…

math.NA2025

On Schrödingerization based quantum algorithms for linear dynamical systems with inhomogeneous terms

Shi Jin, Nana Liu, Chuwen Ma

We analyze the Schrödingerization method for quantum simulation of a general class of non-unitary dynamics with inhomogeneous source terms. The Schrödingerization technique, intr…

math.NA2024

Schrödingerisation based computationally stable algorithms for ill-posed problems in partial differential equations

Shi Jin, Nana Liu, Chuwen Ma

We introduce a simple and stable computational method for ill-posed partial differential equation (PDE) problems. The method is based on Schrödingerization, introduced in [S. Jin,…