Two control methods for the maximum entangled states preparations of a double quantum system
SHANG Yan
WANG Hai-tao
SUI Yan
CONG Shuang
Abstract：For a four-level quantum system which is composed of two spin-1/2 particles, we use two different kinds of pulse sequences to prepare the maximum entangled states. Based on the fractional stimulated Raman adiabatic passage method, we design the half-counterintuitive pulse sequences. At the same time, the π pulse sequences which are based on pulse area control are also designed. We analyze the effect of different parameter values on the preparation performance of entangled states according to the system simulation experimental results. The optimization process of each parameter during the entangled state preparation is given in detail including analyzing the effect of different parameters on the system probability during the preparation of entangled state, selecting the best parameters for entanglement states'preparations and determining the control parameter values for the maximum entanglement states preparations, and Bell ground states preparations.
Keywords：entangled statepreparationhalf-counterintuitive pulse sequencesπ pulse sequences
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：9( 965-973 )