Generation and Processing of Complex Photon States With Quantum Frequency Combs

Abstract

The development of quantum technologies for quantum information (QI) science demands the realization and precise control of complex (multipartite and high dimensional) entangled systems on practical and scalable platforms. Quantum frequency combs (QFCs) represent a powerful tool towards this goal. They enable the generation of complex photon states within a single spatial mode as well as their manipulation using standard fiber-based telecommunication components. Here, we review recent progress in the development of QFCs, with a focus on results that highlight their importance for the realization of complex quantum states. In particular, we outline recent work on the use of integrated QFCs for the generation of high-dimensional multipartite optical cluster states -lying at the basis of measurement-based quantum computation. These results confirm that the QFC approach can provide a stable, practical, low-cost, and established platform for the development of quantum technologies, paving the way towards the advancement of QI science for out-of-the-lab applications, ranging from practical quantum computing to more secure communications. Index Terms-coherent control of photon states, computing and information science, fiber-based telecommunications, highdimensional multipartite entanglement, photon cluster states, photonic integrated circuits, practical and scalable quantum technology, quantum frequency combs.

SPIE Micro+ Nano Materials, Devices, and Applications 2019 Melb BiOBr

“…In Table 1, we compare the measured β and n2 of BiOBr [16] with some other typical 2D layered materials, which confirms the superior third-order optical nonlinearity of BiOBr nanoflakes as an advanced nonlinear optical material for implementing nonlinear photonic devices, similar to other 2D materials we recently measured [17]. These results reflect the stability of the prepared BiOBr nanoflakes and confirm their strong potential as a promising nonlinear optical material for high-performance hybrid integrated photonic devices [18][19] similar to other 2D materials such as graphene oxide [20][21][22][23] and PdSe2, potentially for both classical [24] and quantum [25][26][27][28] applications. Finally, as for Si-Ge [29][30][31] PdSe2 may also offer interesting possibilities for 2 nd order nonlinear effects courtesy of its complex anisotropic nonlinearity.…”

ANZCOP AOS ACOFT SPIE Melbourne 2019 CSLR

“…This work also has implications for the integration of highly nonlinear materials [10 -19] including graphene oxide (GO) for nonlinear optical functions at telecommunication band. These results also have implications for designing advanced photonic circuits for both classical [19] and quantum [20][21][22][23] applications.…”

Integral Order Photonic RF Signal Processors Based on Kerr Micro-combs

“…They offer a much higher number of wavelengths than typically is available through EO combs, together with a wide range of comb spacings (free spectral range (FSR)) including ultralarge FSRs, as well as greatly reduced footprint and complexity. Micro-combs have enabled many fundamental breakthroughs [50] including ultrahigh capacity communications [77][78][79], neural networks [80][81][82], complex quantum state generation [83][84][85][86][87][88][89][90][91][92][93][94][95][96][97] and much more. In particular, micro-combs have proven to be very powerful tools for a wide range of RF applications such as optical true time delays [31], transversal filters [34,38], signal processors [29,32], channelizers [37] and others [15, 18, 26-28, 36, 39-41].…”