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 …

In this review, the authors introduce the notion of quantum nonclassicality of light and the
role of nonclassicality in optical quantum metrology. The first part of this paper focuses on …

We establish the nonclassicality of continuous-variable states as a resource for quantum
metrology. Based on the quantum Fisher information of multimode quadratures, we …

In this paper, we argue that quantum coherence in a bipartite system can be contained
either locally or in the correlations between the subsystems. The portion of quantum …

Macroscopic realism, the classical world view that macroscopic objects exist independently
of and are not influenced by measurements, is usually tested using Leggett-Garg …

We present a scheme, based on the delocalized heralded addition of a single photon, to
entangle two or more distinct field modes, each containing arbitrary light states. A high …

The ability to manipulate light at the level of single photons, its elementary excitation quanta,
has recently made it possible to produce a rich variety of tailor-made quantum states and …

It is generally difficult to study the dynamical properties of a quantum system with both
inherent quantum noises and nonperturbative nonlinearity. Due to the possibly drastic …

We propose a quantum speedup method for adiabatic generation of cat states in bosonic
Josephson junctions via shortcuts to adiabaticity. We apply approximated counter-diabatic …

We propose a scheme to generate entanglement between a single-photon qubit in the
polarization basis and a coherent state of light. The required resources are a superposition …