The control of individual quantum systems is now a reality in a variety of physical settings.
Feedback control is an important class of control methods because of its ability to reduce the …

Many emerging quantum technologies demand precise engineering and control over
networks consisting of quantum mechanical degrees of freedom connected by propagating …

In this study, nanoscale integrated all-optical XNOR, XOR, and NAND logic gates were
realized based on all-optical tunable on-chip plasmon-induced transparency in plasmonic …

Commercial computers based on electronic logic devices have brought great changes to the
world. However, traditional electronic devices are suffering from numerous technical …

We demonstrate an unseeded multimode four-wave-mixing process in hot Rb 85 vapor
using two pump beams of the same frequency that cross at a small angle. This results in the …

For most practical quantum control systems, it is important and difficult to attain robustness
and reliability due to unavoidable uncertainties in the system dynamics or models. Three …

We propose a scheme of interaction-free bidirectional multi-channel all-optical switching in a
multi-level coupling system consisting of four-level atoms confined in a cavity and coupled …

It is well known that some nonlinear phenomena such as strong photon blockade are difficult
to observe in optomechanical systems with current experimental technology. Here we …

A logic gate is typically an electronic device with a Boolean or other type of function, eg,
adding or subtracting, including or excluding according to its logical properties. They can be …

We propose a light transparency effect induced by coherent feedback. By studying a system
comprising a linear optical cavity controlled by a linear coherent feedback loop, we show …