Photonic Enabling Technologies for Quantum Devices

Stute, Andreas

Fainman, Y., Scherer, A., Lu Jeu Sham +1 more

The project is focused in theory, fabrication and characterization of quantum information processing devices manipulating q-bits. Strong coupling between quantum dots and high-Q cavity was demonstrated, enabling both classical and quantum mechanical switching.

Mohamed Benyoucef

Philip J. Bustard, Rune Lausten, Duncan G. England +1 more

The unusual features of quantum mechanics are enabling the development of technologies not possible with classical physics. These devices utilize nonclassical phenomena in the states of atoms, ions, and solid-state media as the basis for many prototypes. Here we investigate molecular states as a distinct alternative. We demonstrate a memory for light based on storing photons in the vibrations of hydrogen molecules. The THz-bandwidth molecular memory is used to store 100-fs pulses for durations up to ~1 ns, enabling ~10(4) operational time bins. The results demonstrate the promise of molecules for constructing compact ultrafast quantum photonic technologies.

Simeon Bogdanov, Mikhail Y. Shalaginov, Alexandra E. Boltasseva +1 more

On-chip integration of quantum optical systems could be a major factor enabling photonic quantum technologies. Unlike the case of electronics, where the essential device is a transistor and the dominant material is silicon, the toolbox of elementary devices required for both classical and quantum photonic integrated circuits is vast. Therefore, many material platforms are being examined to host the future quantum photonic computers and network nodes. We discuss the pros and cons of several platforms for realizing various elementary devices, compare the current degrees of integration achieved in each platform and review several composite platform approaches.