Signatures of nonclassical effects in tomograms

TL;DR

This paper demonstrates how tomograms can directly quantify nonclassical effects like entanglement and squeezing in various quantum systems, providing a more reliable alternative to traditional state reconstruction methods.

Contribution

It introduces a tomogram-based approach to detect and analyze nonclassical effects, bypassing error-prone statistical state reconstruction.

Findings

Tomograms effectively quantify nonclassical effects in multiple quantum systems.

Bipartite entanglement indicators from tomograms work with both known states and experimental data.

The method improves reliability over traditional state reconstruction techniques.

Abstract

The thesis showcases the importance of tomograms in quantifying nonclassical effects such as wavepacket revivals, squeezing, and quantum entanglement in continuous-variable, hybrid quantum, and qubit systems. This approach avoids error-prone statistical methods used in state reconstruction procedures. The performance of many bipartite entanglement indicators obtained directly from tomograms is examined both in the case of known quantum states and experimental data reported in the literature.