Optomechanics, the study of the mechanical interaction of light with matter, has proven to be
a fruitful area of research that has yielded many notable achievements, including the direct …

Sympathetic cooling with ultracold atoms and atomic ions enables ultralow temperatures in
systems where direct laser or evaporative cooling is not possible. It has so far been limited to …

Coherent feedback stabilizes a system toward a target state without the need of a
measurement, thus avoiding the quantum backaction inherent to measurements. Here, we …

Cooling macroscopic objects is of importance for both fundamental and applied physics.
Here we study the optomechanical cooling in a hybrid system which consists of a cloud of …

This paper presents a cavity-assisted coherent feedback scheme to cool a mechanical
resonator to the ground-state in a weak optomechanical coupling setup. Based on the theory …

We consider a wide family of optical coherent feedback loops acting on an optomechanical
system operating in the linearized regime. We assess the efficacy of such loops in improving …

When a gain system is coupled to a loss system, the energy usually flows from the gain
system to the loss one. We here present a counterintuitive theory for the ground-state …

We address a fundamental question of quantum optics: Can a beam of light mediate
coherent Hamiltonian interactions between two distant quantum systems? This is an …

Mechanical oscillators which respond to radiation pressure are a promising means of
transferring quantum information between light and matter. Optical–mechanical state swaps …

Preparing macroscopic mechanical resonators close to their motional quantum groundstate
and generating entanglement with light offers great opportunities in studying fundamental …