In search of photonic bound entanglement: using hyperentanglement to study mixed entangled states

Sharma, Aditya Nilakantan

Permalink

https://hdl.handle.net/2142/92823 Copy

Description

Title

In search of photonic bound entanglement: using hyperentanglement to study mixed entangled states

Author(s)

Sharma, Aditya Nilakantan

Issue Date

2016-07-13

Director of Research (if dissertation) or Advisor (if thesis)

Kwiat, Paul G.

Doctoral Committee Chair(s)

Stack, John D.

Committee Member(s)

• Lorenz, Virginia
• Weaver, Richard L.

Department of Study

Physics

Discipline

Physics

Degree Granting Institution

University of Illinois at Urbana-Champaign

Degree Name

Ph.D.

Degree Level

Dissertation

Keyword(s)

• Entanglement
• Hyperentanglement
• Bound entanglement
• Smolin state
• Spontaneous parametric downconversion

Abstract

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.

Graduation Semester

2016-08

Type of Resource

text

Permalink

http://hdl.handle.net/2142/92823

Copyright and License Information

Copyright 2016 by Aditya Nilakantan Sharma. All rights reserved.

Owning Collections