# Simulation of n-qubit quantum systems. I. Quantum registers and quantum gates

## Description

Abstract During recent years, quantum computations and the study of n-qubit quantum systems have attracted a lot of interest, both in theory and experiment. Apart from the promise of performing quantum computations, however, these investigations also revealed a great deal of difficulties which still need to be solved in practice. In quantum computing, unitary and non-unitary quantum operations act on a given set of qubits to form (entangled) states, in which the information is encoded by the overall s... Title of program: FEYNMAN Catalogue Id: ADWE_v1_0 Nature of problem During the last decade, quantum computing has been found to provide a revolutionary new form of computation. The algorithms by Shor [2] and Grover [3], for example, gave a first impression how one could solve problems in the future, that are intractable otherwise with all classical computers. Broadly speaking, quantum computing applies quantum logic gates (unitary transformations) on a given set of qubits, often referred to a quantum registers. Although, however, the theoretical foundation of qu ... Versions of this program held in the CPC repository in Mendeley Data ADWE_v1_0; FEYNMAN; 10.1016/j.cpc.2005.07.006 ADWE_v2_0; FEYNMAN; 10.1016/j.cpc.2006.03.006 ADWE_v3_0; FEYNMAN; 10.1016/j.cpc.2007.02.106 ADWE_v4_0; FEYNMAN; 10.1016/j.cpc.2008.06.007 ADWE_v5_0; FEYNMAN; 10.1016/j.cpc.2009.10.015 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)