The system of an atom couples to two distinct optical cavities with phase decoherence is studied by making use of a dynamic algebraic method. We adopt the concurrence to characterize the entanglement between atom and cavities or between two optical cavities in the presence of the phase decoherence. It is found that the entanglement between atom and cavities can be controlled by adjusting the de...

Third harmonic superconducting cavities have been designed and fabricated by FNAL to minimise the energy spread along bunches in the FLASH facility at DESY. A module, consisting of four nine-cell 3.9 GHz cavities, has been installed in FLASH. The first measurement with beam excitation is presented, and the comparisons to transmission measurement without beam and simulations are made. Higher ord...

of pulmonary histoplasmosis as well as blastomvcosis, aspergillosis and other fungus diseases. The characteristics of cavities in pulmonary tuberculosis have long been studied by various methods including the transthoracic introduction of a contrast medium. This is a studs’ of cavities and bronchi in pulmonary fungus diseases. The findings are compared with those in previous studies” of tubercu...

We present results on electrically driven nanobeam photonic crystal cavities formed out of a lateral p-i-n junction in gallium arsenide. Despite their small conducting dimensions, nanobeams have robust electrical properties with high current densities possible at low drive powers. Much like their two-dimensional counterparts, the nanobeam cavities exhibit bright electroluminescence at room temp...

The system of an atom couples to two distinct optical cavities with phase damping is studied by making use of a dynamical algebraic method. We adopt the concurrence to characterize the entanglement between atom and cavities or between two optical cavities in the presence of the phase damping. It is found that the entanglement between atom and cavities can be controlled by adjusting the detuning...