Creation, Characterization, and Manipulation of Quantum Entanglement in a Photonic System
Abstract
In this thesis, we report the theoretical and experimental investigations towards the creation, characterization, and manipulation of quantum entanglement in a photonic system. We examine two different aspects of quantum entanglement: In the first part, we discuss the experimental method for the preparation and characterization of SPDC-based polarization-entangled photon source. We provide a review study comparing different Entanglement Measures for non-maximally entangled two-qubit pure states and extend this analysis to higher-dimensional systems. In the second part, we study the entanglement dynamics of a two-qubit system in the presence of an Amplitude Damping Channel and present a scheme based on local unitary operations to protect entanglement from undergoing Entanglement Sudden Death. We extend the decoherence study to qubit-qutrit and qutrit-qutrit entangled systems and propose an entanglement protection scheme for the higher dimensional system.
Keywords
Cite
@article{arxiv.2212.10658,
title = {Creation, Characterization, and Manipulation of Quantum Entanglement in a Photonic System},
author = {Ashutosh Singh},
journal= {arXiv preprint arXiv:2212.10658},
year = {2022}
}
Comments
Ph.D. Thesis - 2020 (Raman Research Institute - Bangalore), Seven Chapters, 226 page