A quantum theory of multiphase estimation is crucial for quantum-enhanced sensing and
imaging and may link quantum metrology to more complex quantum computation and …

Quantum metrology is the state-of-the-art measurement technology. It uses quantum
resources to enhance the sensitivity of phase estimation over that achievable by classical …

We investigate the sensitivity of an ion sensor in determining the temperature of an atomic
Fermi gas. Our study extends to charged impurities the proposal by MT Mitchison et al.[Phys …

We predict that exploiting spin-orbit coupling in a harmonically trapped spinor quantum gas
can lead to scaling of the optimal measurement precision beyond the Heisenberg scaling …

In distributed quantum sensing the correlations between multiple modes, typically of a
photonic system, are utilized to enhance the measurement precision of an unknown …

We investigate the classical and quantum metrology of performing parameter estimation with
interacting trapped bosons, which we theoretically treat by a self-consistent many-body …

We propose an experiment, where the Bell inequality is violated in a many-body system of
massive particles. The source of correlated atoms is a spinor F= 1 Bose-Einstein condensate …

We study the classical and quantum Fisher information of the interaction coupling in the Lieb-
Liniger model. Fisher information has been studied extensively when the parameter is …

Feshbach resonances, which allow for tuning the interactions of ultracold atoms with an
external magnetic field, have been widely used to control the properties of quantum gases …

In this thesis we deal with two different topics. In the first half we investigate how the
Bayesian formalism can be introduced into the problem of quantum thermometry--a field …