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Investigating student understanding of quantum entanglement

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Kohnle_2016_PERC2015_Investigating_CCBY.pdf (2.280Mb)
Date
18/12/2015
Author
Kohnle, Antje
Deffebach, Erica
Keywords
PERC 2015
QC Physics
LB2300 Higher Education
NDAS
Metadata
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Abstract
Quantum entanglement is a central concept of quantum theory for multiple particles. Entanglement played an important role in the development of the foundations of the theory and makes possible modern applications in quantum information technology. As part of the QuVis Quantum Mechanics Visualization Project, we developed an interactive simulation Entanglement: The nature of quantum correlations using two-particle entangled spin states. We investigated student understanding of entanglement at the introductory and advanced undergraduate levels by collecting student activity and post-test responses using two versions of the simulation and carrying out a small number of student interviews. Common incorrect ideas found include statements that all entangled states must be maximally entangled (i.e. show perfect correlations or anticorrelations along all common measurement axes), that the spins of particles in a product state must have definite values (cannot be in a superposition state with respect to spin) and difficulty factorizing product states. Outcomes from this work will inform further development of the QuVis Entanglement simulation.
Citation
Kohnle , A & Deffebach , E 2015 , Investigating student understanding of quantum entanglement . in A D Churukian , D Jones & L Ding (eds) , 2015 Physics Education Research Conference proceedings . PER Conference series , American Association of Physics Teachers , pp. 171-174 . https://doi.org/10.1119/perc.2015.pr.038
Publication
2015 Physics Education Research Conference proceedings
DOI
https://doi.org/10.1119/perc.2015.pr.038
ISSN
1539-9028
Type
Conference item
Rights
© 2015 American Association of Physics Teachers and the article authors. Published under the terms of a Creative Commons Attribution 3.0 license: https://creativecommons.org/licenses/by/3.0/
Description
The authors thank the UK Institute of Physics for funding the simulation development.
Collections
  • University of St Andrews Research
URI
http://hdl.handle.net/10023/8226

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