Method for Generating Randomly Perturbed Density Operators Subject to Different Sets of Constraints

Autor:	J. A. Montañez-Barrera, R. T. Holladay, G. P. Beretta, Michael R. von Spakovsky
Jazyk:	angličtina
Rok vydání:	2021
Předmět:	Quantum Physics Modeling and Simulation Signal Processing FOS: Physical sciences Statistical and Nonlinear Physics Electrical and Electronic Engineering Quantum Physics (quant-ph) Theoretical Computer Science Electronic Optical and Magnetic Materials
Popis:	This paper presents a general method for producing randomly perturbed density operators subject to different sets of constraints. The perturbed density operators are a specified "distance" away from the state described by the original density operator. This approach is applied to a bipartite system of qubits and used to examine the sensitivity of various entanglement measures on the perturbation magnitude. The constraint sets used include constant energy, constant entropy, and both constant energy and entropy. The method is then applied to produce perturbed random quantum states that correspond with those obtained experimentally for Bell states on the IBM quantum device ibmq_manila. The results show that the methodology can be used to simulate the outcome of real quantum devices where noise, which is important both in theory and simulation, is present. 14 pages, 16 figures
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ff69850b58a314ac88644cec4a6ed6c http://arxiv.org/abs/2112.12247 Zobrazit plný text záznamu