Macroscopic superpositions via nested interferometry: finite temperature and decoherence considerations

TL;DR

This paper examines a nested interferometry scheme for creating macroscopic quantum superpositions, analyzing how finite temperature and decoherence affect its feasibility and robustness.

Contribution

It provides a detailed analysis of finite temperature effects and decoherence mechanisms on the proposed macroscopic superposition scheme.

Findings

Finite temperature impacts superposition quality.

The scheme can probe novel decoherence mechanisms.

Feasibility depends on controlling environmental factors.

Abstract

Recently there has been much interest in optomechanical devices for the production of macroscopic quantum states. Here we focus on a proposed scheme for achieving macroscopic superpositions via nested interferometry. We consider the effects of finite temperature on the superposition produced. We also investigate in detail the scheme's feasibility for probing various novel decoherence mechanisms.