ZKCM: a C++ library for multiprecision matrix computation with applications in quantum information

TL;DR

ZKCM is a C++ library designed for high-precision matrix computations, facilitating quantum physics simulations and quantum computing research through user-friendly syntax and specialized extensions.

Contribution

It introduces a multiprecision matrix computation library with an extension for quantum computing simulations, enhancing numerical accuracy and usability in quantum information research.

Findings

Provides multiprecision matrix computation capabilities

Includes an extension for quantum computing simulations

Offers practical sample programs for users

Abstract

ZKCM is a C++ library developed for the purpose of multiprecision matrix computation, on the basis of the GNU MP and MPFR libraries. It provides an easy-to-use syntax and convenient functions for matrix manipulations including those often used in numerical simulations in quantum physics. Its extension library, ZKCM_QC, is developed for simulating quantum computing using the time-dependent matrix-product-state simulation method. This paper gives an introduction about the libraries with practical sample programs.