Integrated generation of complex optical quantum states and their coherent control

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)

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Author(s)

  • Piotr Roztocki
  • Michael Kues
  • Christian Reimer
  • Luis Romero Cortés
  • Stefania Sciara
  • Benjamin Wetzel
  • Yanbing Zhang
  • Alfonso Cino
  • Brent E. Little
  • David J. Moss
  • Lucia Caspani
  • José Azaña
  • Roberto Morandotti

Related Research Unit(s)

Detail(s)

Original languageEnglish
Title of host publicationNanophotonics Australasia 2017
EditorsJames W. M. Chon, Baohua Jia
PublisherSPIE
ISBN (Electronic)9781510613942
ISBN (Print)9781510613935
Publication statusPublished - 2 Jan 2018

Publication series

NameProceedings of SPIE
Volume10456
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

TitleSPIE NanoPhotonics Australasia 2017
LocationSwinburne University of Technology
PlaceAustralia
CityMelbourne
Period10 - 13 December 2017

Abstract

Complex optical quantum states based on entangled photons are essential for investigations of fundamental physics and are the heart of applications in quantum information science. Recently, integrated photonics has become a leading platform for the compact, cost-efficient, and stable generation and processing of optical quantum states. However, onchip sources are currently limited to basic two-dimensional (qubit) two-photon states, whereas scaling the state complexity requires access to states composed of several (<2) photons and/or exhibiting high photon dimensionality. Here we show that the use of integrated frequency combs (on-chip light sources with a broad spectrum of evenly-spaced frequency modes) based on high-Q nonlinear microring resonators can provide solutions for such scalable complex quantum state sources. In particular, by using spontaneous four-wave mixing within the resonators, we demonstrate the generation of bi- and multi-photon entangled qubit states over a broad comb of channels spanning the S, C, and L telecommunications bands, and control these states coherently to perform quantum interference measurements and state tomography. Furthermore, we demonstrate the on-chip generation of entangled high-dimensional (quDit) states, where the photons are created in a coherent superposition of multiple pure frequency modes. Specifically, we confirm the realization of a quantum system with at least one hundred dimensions. Moreover, using off-the-shelf telecommunications components, we introduce a platform for the coherent manipulation and control of frequencyentangled quDit states. Our results suggest that microcavity-based entangled photon state generation and the coherent control of states using accessible telecommunications infrastructure introduce a powerful and scalable platform for quantum information science.

Research Area(s)

  • Frequency combs, Integrated photonics, Nonlinear processes, Quantum optics, spontaneous four-wave mixing

Bibliographic Note

Full text of this publication does not contain sufficient affiliation information. With consent from the author(s) concerned, the Research Unit(s) information for this record is based on the existing academic department affiliation of the author(s).

Citation Format(s)

Integrated generation of complex optical quantum states and their coherent control. / Roztocki, Piotr; Kues, Michael; Reimer, Christian; Romero Cortés, Luis; Sciara, Stefania; Wetzel, Benjamin; Zhang, Yanbing; Cino, Alfonso; Chu, Sai T.; Little, Brent E.; Moss, David J.; Caspani, Lucia; Azaña, José; Morandotti, Roberto.

Nanophotonics Australasia 2017. ed. / James W. M. Chon; Baohua Jia. SPIE, 2018. 104561A (Proceedings of SPIE; Vol. 10456).

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)