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 show that both the classical as well as the quantum definitions of the Fisher information
faithfully identify resourceful quantum states in general quantum resource theories, in the …

The ability of quantum states to be in superposition is one of the key features that sets them
apart from the classical world. This “coherence” is rigorously quantified by resource theories …

In the framework of quantum thermodynamics preparing a quantum system in a general
state requires the consumption of two distinct resources, namely, work and energetic …

Recently various ways to quantify coherence of a quantum state have been proposed. In this
paper, several reliable quantum coherence measures based on quantum Fisher information …

Coherence measures and their operational interpretations lay the cornerstone of coherence
theory. In this paper, we introduce a class of coherence measures with α affinity, say α …

We show that the symmetric portion of correlated coherence is always a valid quantifier of
entanglement, and that this property is independent of the particular choice of coherence …

In quantum resource theories (QRTs), evidence of intrinsic connections between coherence
and quantum correlations, including Bell nonlocality, entanglement, quantum steering, and …

Dicke superrandiance is a cooperative phenomenon which arises from the collective
coupling of an ensemble of atoms to the electromagnetic radiation. Here we discuss the …

Quantum Fisher information (QFI) has potential applications in quantum metrology tasks. QFI
is investigated when the consecutive actions of a quantum channel on the sequence of …