Some Major Studies in Experimental Verifications of Bell Inequality

Abstract

Bell inequality plays a crucial role in the debate between quantum mechanical completeness and local realism. It vigorously promoted researches on these aspects, macroscopic quantum superposition states, especially entangled states, and it has brought the debate from theory to experiment, which generated a new discipline, quantum information theory. Thus, this work briefly summarizes some major situations in the verification process of Bell inequality. At the same time, this work analyses existent some problems in the verification process of Bell inequality, and states own perception for the debate.This work can help people better understand the foundation knowledge of quantum information theory, thus quantum information theory can be applied to more actual situations.

Q-deformed rainbows: a universal simulator of free entanglement spectra

“…q1 J 1 respectively, and q 1 as previously defined in equation (4). When extended to a chain of four spins, the ground state subspace of H (1) becomes four-fold degenerate.…”

“…Entanglement lies at the heart of the disparity between classical and quantum mechanics. As such it has long been at the forefront of both theoretical [1,2] and experimental [3,4] investigations into the foundations of quantum mechanics. More recently, entanglement has gained renewed interest with the development of quantum information theory [5,6].…”