Interference, which refers to the phenomenon associated with the superposition of waves,
has played a crucial role in the advancement of physics and finds a wide range of …

Quantum metrology can achieve far better precision than classical metrology, and is one of
the most important applications of quantum technologies in the real world. To attain the …

Achieving the ultimate precisions for multiple parameters simultaneously is an outstanding
challenge in quantum physics, because the optimal measurements for incompatible …

Quantum metrology promises unprecedented precision of parameter estimation, but it is
often vulnerable to noise. While significant efforts have been devoted to improving the …

We derive fundamental bounds on the maximal achievable precision in multiparameter
noisy quantum metrology, valid under the most general entanglement-assisted adaptive …

The Heisenberg scaling, which scales as N-1 in terms of the number of particles or T-1 in
terms of the evolution time, serves as a fundamental limit in quantum metrology. Better …

This tutorial introduces a systematic approach for addressing the key question of quantum
metrology: For a generic task of sensing an unknown parameter, what is the ultimate …

The Hamiltonian, which determines the evolution of a quantum system, is fundamental in
quantum physics. Therefore, it is crucial to implement high-precision generation and …

In most quantum technologies, measurements need to be performed on the parametrized
quantum states to transform the quantum information to classical information. The …

In quantum multiparameter estimation, multiple to-be-estimated parameters are encoded in
a quantum dynamics system by a unitary evolution. As the parameters vary, the system may …