Conference Proceedings Detail Page

Witnessing Entanglement
written by Marisol N. Beck and Mark Beck
An entangled state of a two-particle system is a quantum state that cannot be separated--it cannot be written as the product of states of the individual particles. One way to tell if a system is entangled is to use it to violate a Bell inequality (such as the Clauser-Horne-Shimony-Holt, CHSH, inequality), because entanglement is necessary to violate these inequalities. However, there are other, more efficient measurements that determine whether or not a system is entangled; an operator that corresponds to such a measurement is referred to as an entanglement witness. We present the theory of witness operators, and an undergraduate experiment that measures an entanglement witness for the joint polarization state of two photons. We are able to produce states for which the expectation value of the witness operator is entangled by more than 160 standard deviations.
2015 Conference on Laboratory Instruction Beyond the First Year of College
Part of the BFY Conference series
College Park, MD: July 22-24, 2015
Pages 12-15
Subjects Levels Resource Types
Education Practices
- Curriculum Development
= Laboratory
- Instructional Material Design
= Activity
Quantum Physics
- Entanglement and Quantum Information
- Quantum Experiments
- Upper Undergraduate
- Instructional Material
= Laboratory
- Reference Material
= Article
Material Category Formats Ratings
- Articles and Supplements
- application/pdf
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Format:
application/pdf
Mirror:
http://dx.doi.org/10.1119/bfy.201…
Access Rights:
Free access
License:
This material is released under a Creative Commons Attribution 3.0 license. Further distribution of this work must maintain attribution to the published article's author(s), title, proceedings citation, and DOI.
Rights Holder:
American Association of Physics Teachers
DOI:
10.1119/bfy.2015.pr.003
PACSs:
03.67.Mn
03.67.Bg
42.50.Dv
Keywords:
BFY 2015, Entanglement, Quantum Information, Quantum Measurement, Quantum Mechanics, two photon experiment
Record Cloner:
Metadata instance created November 17, 2015 by Lyle Barbato
Record Updated:
November 19, 2015 by Bruce Mason
Last Update
when Cataloged:
November 17, 2015
Other Collections:

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Record Link
AIP Format
M. Beck and M. Beck, presented at the 2015 Conference on Laboratory Instruction Beyond the First Year of College, College Park, MD, 2015, WWW Document, (https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13795&DocID=4215).
AJP/PRST-PER
M. Beck and M. Beck, Witnessing Entanglement, presented at the 2015 Conference on Laboratory Instruction Beyond the First Year of College, College Park, MD, 2015, <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13795&DocID=4215>.
APA Format
Beck, M., & Beck, M. (2015, July 22-24). Witnessing Entanglement. Paper presented at 2015 Conference on Laboratory Instruction Beyond the First Year of College, College Park, MD. Retrieved September 25, 2017, from https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13795&DocID=4215
Chicago Format
Beck, Marisol, and Mark Beck. "Witnessing Entanglement." Paper presented at the 2015 Conference on Laboratory Instruction Beyond the First Year of College, College Park, MD, July 22-24, 2015. https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13795&DocID=4215 (accessed 25 September 2017).
MLA Format
Beck, Marisol, and Mark Beck. "Witnessing Entanglement." 2015 Conference on Laboratory Instruction Beyond the First Year of College. College Park, MD: 2015. 12-15 of BFY Conference. 25 Sep. 2017 <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13795&DocID=4215>.
BibTeX Export Format
@inproceedings{ Author = "Marisol Beck and Mark Beck", Title = {Witnessing Entanglement}, BookTitle = {2015 Conference on Laboratory Instruction Beyond the First Year of College}, Pages = {12-15}, Address = {College Park, MD}, Series = {BFY Conference}, Month = {July 22-24}, Year = {2015} }
Refer Export Format

%A Marisol Beck
%A Mark Beck
%T Witnessing Entanglement
%S BFY Conference
%D July 22-24 2015
%P 12-15
%C College Park, MD
%U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13795&DocID=4215
%O 2015 Conference on Laboratory Instruction Beyond the First Year of College
%O July 22-24
%O application/pdf

EndNote Export Format

%0 Conference Proceedings
%A Beck, Marisol
%A Beck, Mark
%D July 22-24 2015
%T Witnessing Entanglement
%B 2015 Conference on Laboratory Instruction Beyond the First Year of College
%C College Park, MD
%P 12-15
%S BFY Conference
%8 July 22-24
%U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13795&DocID=4215


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