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Kwiat, Paul G. Stack, John D. Lorenz, Virginia Weaver, Richard L. Sharma, Aditya Nilakantan 2016-11-10T17:55:02Z 2016-11-10T17:55:02Z 2016-07-13 2016-08 Quantum entanglement exhibits various interesting features that emerge only in high-dimensional systems. One of the most fascinating is bound entanglement, entanglement that cannot be extracted using local operations and classical communication. This thesis describes our work towards an experimental realization of the four-qubit bound-entangled Smolin state, using the polarization and spatial mode of photon pairs. We describe a number of interesting experimental challenges that this work faced. We present our results on entangled two-qubit spatial mode states and hyperentangled four-qubit polarization-spatial-mode states generated by spontaneous parametric down-conversion from a second-order TEM mode pump. Some of the subtleties involved in preparing genuine mixed states in the lab are discussed. Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2016-11-09 without embargo terms The student, Aditya Sharma, accepted the attached license on 2016-07-12 at 18:01. The student, Aditya Sharma, submitted this Dissertation for approval on 2016-07-12 at 18:07. This Dissertation was approved for publication on 2016-07-13 at 10:42. DSpace SAF Submission Ingestion Package generated from Vireo submission #9905 on 2016-11-09 at 10:24:30 Made available in DSpace on 2016-11-10T17:55:02Z (GMT). No. of bitstreams: 2 SHARMA-DISSERTATION-2016.pdf: 5274890 bytes, checksum: 8d426ed50fc6b44e68bcd2f308af45eb (MD5) LICENSE.txt: 4210 bytes, checksum: a5cbda28f46dad4f3c9db3f53f4e3a4e (MD5) Previous issue date: 2016-07-13 application/pdf http://hdl.handle.net/2142/92823 en Copyright 2016 by Aditya Nilakantan Sharma. All rights reserved. Entanglement Hyperentanglement Bound entanglement Smolin state Spontaneous parametric downconversion In search of photonic bound entanglement: using hyperentanglement to study mixed entangled states text text Physics Physics University of Illinois at Urbana-Champaign Dissertation Ph.D.