Spatial Quantum State Tomography with A Deformable Mirror

TL;DR

This paper introduces a novel method for spatial quantum state tomography using a deformable mirror, which offers faster, more efficient, and polarization-insensitive measurements compared to traditional spatial light modulator techniques.

Contribution

The paper presents the first experimental demonstration of spatial quantum state tomography with a deformable mirror, improving speed and efficiency over conventional methods.

Findings

Deformable mirror-based tomography outperforms SLM-based methods in speed.

The method is polarization insensitive.

Experimental validation confirms effectiveness.

Abstract

Quantum tomography is an essential experimental tool for testing any quantum technology implementations. Transverse spatial quantum states of light play a key role in many experiments in the field of quantum information as well as in free-space optical communications. In this letter we propose and experimentally demonstrate the tomography of spatial quantum states with a deformable mirror. It may be used to significantly outperform the conventional method with a spatial light modulator (SLM) in terms of speed and efficiency, at the same time providing polarization insensitive operation.