Quantum Sensing in the Perspectives of Real-Life Applications

Abstract

Amazing developing of different fundamental and applied areas of quantum science created an
‘explosion’ of alternative paradigms, theoretical methods, experimental approaches and numerical tools.
For any particular area, for instance, quantum sensing, a researcher or an engineer who want to get a basic
knowledge on the subject can feel lost facing the exponentially extending number of publications in the
given field.
From one hand, now there is no need to explain the importance of the new generation of quantum
devices: the accuracy and fidelity of quantum sensors to compare with their classical physics-based
competitors is totally out of discussion. From another hand, observing so many different types of
quantum sensors, and so many protocols of sensing, ones can ask themselves: which type of sensor or of
protocol should I chose for my practical purpose? The researchers may ask themselves: which types of
quantum devices have the best perspective in particular real-life applications, and which of them have
rather an academic interest?
Here we develop an objective approach to evaluate quantum sensor perspectives in different real-life
applications and to provide a guiding thread via the Minotaur labyrinth of different quantum approaches
to the most appropriate ones.
First, we give a brief review of the most prominent quantum sensor prototypes that we have now in the
market. Then, we discuss pros and cons of them in the perspective of real-life application. As a matter of
our particular research interest, we also observe some control methods to improve the quantum sensing
implementation for different sensor types.