Coupling a quantum many-body system to an external environment dramatically changes its
dynamics and offers novel possibilities not found in closed systems. Of special interest are …

Controlling a quantum system by using observations of its dynamics is complicated by the
backaction of the measurement process—that is, the unavoidable quantum disturbance …

Cavity optomechanics, a promising platform to investigate macroscopic quantum effects, has
been widely used to study nonreciprocal entanglement with the Sagnac effect. Here, we …

Cavity magnomechanics has shown great potential in studying macroscopic quantum
effects, especially for quantum entanglement, which is a key resource for quantum …

The amount of work that can be extracted from a quantum system can be increased by
exploiting the information obtained from a measurement performed on a correlated ancillary …

Continuous weak measurement allows localizing open quantum systems in state space and
tracing out their quantum trajectory as they evolve in time. Efficient quantum measurement …

In the cavity-magnonics system, the coupling between microwave photon and magnon is of
beam-splitter (BS) interaction, which in general does not support steady-state entanglement …

We consider the problem of frequency estimation for a single bosonic field evolving under a
squeezing Hamiltonian and continuously monitored via homodyne detection. In particular …

Engineering strong interactions between quantum systems is essential for many
phenomena of quantum physics and technology. Typically, strong coupling relies on short …

We demonstrate optimal state estimation for a cavity optomechanical system through
Kalman filtering. By taking into account nontrivial experimental noise sources, such as …