Quantum coherence and quantum correlations are of fundamental and practical significance
for the development of quantum mechanics. They are also cornerstones of quantum …

At the beginning of the previous century, Newtonian mechanics was advanced by two new
revolutionary theories, Quantum Mechanics (QM) and General Relativity (GR). Both theories …

We show that two quantities in quantum metrology that were thought to be the same, the
quantum Fisher information matrix and the Bures metric, are not the same. They differ at …

We study the dynamics of quantum coherence under Unruh thermal noise and seek under
which condition the coherence can be frozen in a relativistic setting. We find that the frozen …

We investigate the ultimate estimation precision, characterized by the quantum Fisher
information, of a two-level atom as a detector which is coupled to massless scalar field in the …

Atomic clock interferometers are a valuable tool to test the interface between quantum theory
and gravity, in particular via the measurement of gravitational time dilation in the quantum …

We address the issue of precisely estimating small parameters encoded in a general linear
transformation of the modes of a bosonic quantum field. Such Bogoliubov transformations …

When atoms are accelerated in the vacuum, entanglement among atoms will degrade
compared with the initial situation before the acceleration. In this study, we propose a novel …

Considering a pair of Unruh–DeWitt detectors, when one of them is kept inertial and the
other one is accelerated and coupled to a scalar field, we address the teleportation of a two …

A bstract We consider two entangled accelerating qubits coupled with real scalar fields,
each described by the Unruh-Wald model. It is demonstrated that because of the Unruh …