Quantum-enhanced measurements exploit quantum mechanical effects for increasing the
sensitivity of measurements of certain physical parameters and have great potential for both …

Quantum metrology holds the promise of an early practical application of quantum
technologies, in which measurements of physical quantities can be made with much greater …

We address the question of whether the super-Heisenberg scaling for quantum estimation is
indeed realizable. We unify the results of two approaches. In the first one, the original system …

We study how useful random states are for quantum metrology, ie, whether they surpass the
classical limits imposed on precision in the canonical phase sensing scenario. First, we …

In the classical regime, thermodynamic state transformations are governed by the free
energy. This is also called as the second law of thermodynamics. Previous works showed …

We present several inequalities related to the Robertson-Schrödinger uncertainty relation. In
all these inequalities, we consider a decomposition of the density matrix into a mixture of …

A nonlocal quantum approach is presented to polarimetry, leveraging the phenomenon of
entanglement in photon pairs to enhance the precision in sample property determination. By …

In traditional quantum metrology protocols, the initial multipartite entangled pure quantum
probes are considered to be isolated, ie, free of quantum many-body effects. Here, we study …

We introduce a semidefinite programming algorithm to find the minimal quantum Fisher
information compatible with an arbitrary dataset of mean values. This certification task allows …

We present a simple protocol for certifying graph states in quantum networks using stabiliser
measurements. The certification statements can easily be applied to different protocols using …