Charge density stabilised local electron spin pair states in insulating polymers

2014 ◽  
Vol 116 (22) ◽  
pp. 224901 ◽  
Author(s):  
S. Serra ◽  
G. C. Montanari ◽  
L. A. Dissado
Keyword(s):  
Charge Density ◽  
Electron Spin ◽  
Local Electron ◽  
Spin Pair ◽  
Insulating Polymers

scholarly journals The GHSZ Argument: A Gedankenexperiment Requiring More Denken

Entropy ◽  
2020 ◽  
Vol 22 (7) ◽  
pp. 759
Author(s):  
Frank Lad
Keyword(s):  
Linear Combination ◽  
Electron Spin ◽  
Hidden Variables ◽  
Local Realism ◽  
High Dimensional ◽  
Bell’S Inequality ◽  
Spin Pair ◽  
Quantum Probabilities ◽  
Double Electron ◽  
Fundamental Error

I reassess the gedankenexperiment of Greenberger, Horne, Shimony, and Zeilinger after twenty-five years, finding their influential claim to the discovery of an inconsistency inherent in high dimensional formulations of local realism to arise from a fundamental error of logic. They manage this by presuming contradictory premises: that a specific linear combination of four angles involved in their proposed parallel experiments on two pairs of electrons equals both π and 0 at the same time. Ignoring this while presuming the contradictory implications of these two conditions, they introduce the contradiction themselves. The notation they use in their “derivation” is not sufficiently ornate to represent the entanglement in the double electron spin pair problem they design, confounding their error. The situation they propose actually motivates only an understanding of the full array of symmetries involved in their problem. In tandem with the error now recognised in the supposed defiance of Bell’s inequality by quantum probabilities, my reassessment of their work should motivate a reevaluation of the current consensus outlook regarding the principle of local realism and the proposition of hidden variables.

S = 1 antiferromagnetic electron-spin systems on hydrogenated phenalenyl-tessellation molecules for material-based quantum-computation resources

2021 ◽  
Vol 14 (12) ◽  
pp. 121005
Author(s):  
Naoki Morishita ◽  
Yasuhiro Oishi ◽  
Terufumi Yamaguchi ◽  
Koichi Kusakabe
Keyword(s):  
Quantum Computation ◽  
Electron Spin ◽  
Hydrogen Adsorption ◽  
Exchange Interactions ◽  
Material Design ◽  
Spin Systems ◽  
Spin Chains ◽  
Local Electron ◽  
Zero Modes ◽  
Antiferromagnetic Spin

Abstract A resource state for measurement-based quantum computation is proposed using a material design of S = 1 antiferromagnetic spin chains. Specifying hydrogen adsorption positions on polymerized phenalenyl-tessellation molecules gives rise to formation of graphene zero modes that produce local S = 1 spins or S = 1/2 spins in the required order through exchange interactions. When the S = 1 antiferromagnetic Heisenberg models serve as quantum-computation resources, hydrogen adatoms inducing zero modes can also work as local electron-spin probes in nuclear spin spectroscopy, which could be used for controlling and measuring local spins.

Molecule-made electron spin pair executes quantum gate

Scilight ◽  
2020 ◽  
Vol 2020 (1) ◽  
pp. 011101
Author(s):  
Chris Patrick
Keyword(s):  
Electron Spin ◽  
Quantum Gate ◽  
Spin Pair

Theoretical and electron spin resonance studies of the H⋯H, H⋯D, and D⋯D spin-pair radicals in rare gas matrices: A case of extreme singlet–triplet mixing

1998 ◽  
Vol 109 (4) ◽  
pp. 1409-1424 ◽  
Author(s):  
Lon B. Knight ◽  
William E. Rice ◽  
Louie Moore ◽  
Ernest R. Davidson ◽  
Robert S. Dailey
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Rare Gas ◽  
Spin Pair ◽  
Spin Resonance
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