Quantum teleportation has become a fundamental building block of quantum technologies,
playing a vital role in the development of quantum communication networks. Here, we …

Recently, the Hilbert–Schmidt speed, as a special class of quantum statistical speed, has
been reported to improve interferometric phase in a single-parameter quantum estimation …

In this paper, we investigate the role of the nonlinear response of a material to improve
quantum metrology. We show that the collective optical behavior of an atomic ensemble can …

Non-Markovian effects due to quantum memory in the dynamics of open systems typically
correspond to information backflows from the surrounding environment to the system. We …

One of the most important applications of quantum physics is quantum teleportation, the
possibility to transfer quantum states over arbitrary distances. In this paper, we address the …

Many quantum systems display Markovian and non-Markovian behaviors with the
information flow and backflow between the system and the surrounding environment. In this …

Using a two-level moving probe, we address the temperature estimation of a static thermal
bath modeled by a massless scalar field prepared in a thermal state. Different couplings of …

Finding the energy levels of a quantum system is a significant task, for instance, to
characterize the compatibility of materials or to analyze reaction rates in drug discovery and …

Non-Hermitian systems with parity-time (PT) symmetry and anti-PT symmetry lead to
exceptional points (EPs) with intriguing properties related to, eg, chiral transport and …

In this paper, we address the quantum estimation problem in the presence of quantum
oscillations, which occur due to the use of the pulse technique when applied to two …