Large-scale quantum effects have always played an important role in the foundations of
quantum theory. With recent experimental progress and the aspiration for quantum …

A novel protocol for generating quantum superpositions of macroscopically distinct states of
a bulk mechanical oscillator is proposed, compatible with existing optomechanical devices …

The aim of this paper is to consider the consequences of an information-theoretic
interpretation of quantum mechanics for the measurement problem. The motivating idea of …

In this paper, we propose a new theoretical scheme for generating a macroscopic
Schrödinger cat state of a mechanical oscillator in a hybrid optomechanical system where a …

We study the effect of local decoherence on arbitrary quantum states. Adapting techniques
developed in quantum metrology, we show that the action of generic local noise processes …

This thesis investigates three aspects of nonclassicality. The first aspect is macroscopic
quantumness, a field which considers the properties of macroscopic superpositions. The …

We address the macroscopic quantumness of the state of mechanical systems subjected to
conditional protocols devised for state engineering in cavity optomechanics. We use a …

From the beginning of quantum mechanics, many physicists raised the question whether this
superposition principle can also be applied in the macroscopic regime. Quantum …