Mechanical resonators are widely used in sensors, transducers and optomechanical
systems, where mechanical dissipation sets the ultimate limit to performance. Over the past …

Lithium niobate (LN) has experienced significant developments during past decades due to
its versatile properties, especially its large electro-optic (EO) coefficient. For example, bulk …

Cavity magnonics deals with the interaction of magnons—elementary excitations in
magnetic materials—and confined electromagnetic fields. We introduce the basic physics …

Quantum-mechanical effects at the macroscopic level were first explored in Josephson-
junction-based superconducting circuits in the 1980s. In recent decades, the emergence of …

Conversion of electrical and optical signals lies at the foundation of the global internet. Such
converters are used to extend the reach of long-haul fibre-optic communication systems and …

Entangling microwave-frequency superconducting quantum processors through optical light
at ambient temperature would enable means of secure communication and distributed …

Photons at microwave and optical frequencies are principal carriers for quantum information.
While microwave photons can be effectively controlled at the local circuit level, optical …

Just as “classical” information technology rests on a foundation built of interconnected
information-processing systems, quantum information technology (QIT) must do the same. A …

Mechanical degrees of freedom, which have often been overlooked in various quantum
systems, have been studied for applications ranging from quantum information processing to …

Quantum transduction, the process of converting quantum signals from one form of energy to
another, is an important area of quantum science and technology. The present perspective …