Large-scale quantum photonic circuits in silicon

Nanophotonics

Hochberg Michael¹  Baehr-Jones Tom¹  Englund Dirk²  Steinbrecher Greg R.²  Pant Mihir²  Mower Jacob²  Prabhu Mihika²  Harris Nicholas C.²  Bunandar Darius³ 

[1] Coriant Advanced Technology, 171 Madison Avenue, Suite 1100, New York, NY 10016, United States of America;Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, United States of America;Department of Physics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, United States of America;

关键词: quantum;    optics;    photonics;    silicon;    linear optics;   

DOI  :  10.1515/nanoph-2015-0146

来源: DOAJ

【 摘 要 】

Quantum information science offers inherently more powerful methods for communication, computation, and precision measurement that take advantage of quantum superposition and entanglement. In recent years, theoretical and experimental advances in quantum computing and simulation with photons have spurred great interest in developing large photonic entangled states that challenge today’s classical computers. As experiments have increased in complexity, there has been an increasing need to transition bulk optics experiments to integrated photonics platforms to control more spatial modes with higher fidelity and phase stability. The silicon-on-insulator (SOI) nanophotonics platform offers new possibilities for quantum optics, including the integration of bright, nonclassical light sources, based on the large third-order nonlinearity (χ(3)) of silicon, alongside quantum state manipulation circuits with thousands of optical elements, all on a single phase-stable chip. How large do these photonic systems need to be? Recent theoretical work on Boson Sampling suggests that even the problem of sampling from e30 identical photons, having passed through an interferometer of hundreds of modes, becomes challenging for classical computers. While experiments of this size are still challenging, the SOI platform has the required component density to enable low-loss and programmable interferometers for manipulating hundreds of spatial modes.

【 授权许可】

Unknown