Session Overview |
Tuesday, May 28 |
13:00 |
Effect of fabrication parameters and design approach for photon extraction from single crystalline diamond for quantum applications
* Mohammad Soltani, Institute for Quantum Computing (IQC), University of Waterloo, Canada Behrooz Semnani, Institute for Quantum Computing (IQC), University of Waterloo, Canada Abdolreza Pasharavesh, Institute for Quantum Computing (IQC), University of Waterloo, Canada Vinodh Raj Rajagopal Muthua, Xanadu Quantum Technologies, Canada Christopher Wilson, Institute for Quantum Computing (IQC), University of Waterloo, Canada Michal Bajcsy, Institute for Quantum Computing (IQC), University of Waterloo, Canada Diamonds attract considerable attention due to their unique properties, making them favorable for quantum computing and quantum sensing applications. Defects in diamonds, such as Nitrogen-Vacancy (NV) centers, can store and manipulate quantum information1. At the same time, photon extraction from single defects and their individual remains challenging due to the high refractive index of the diamond host medium. In this work, we focused on the fabrication parameters and designs for photon-extracting structures and their effects on the photon extraction efficiency. |
13:15 |
Mechanism of single photon emitter formation in locally strained monolayer WSe2
Artem Abramov, ITMO University, Russia Vasily Kravtsov, ITMO University, Russia Igor Chestnov, ITMO University * Ivan Iorsh, Queen's University, Canada Local mechanical deformation of atomically thin van der Waals materials provides a powerful approach to create site-controlled chip-compatible single-photon emitters (SPEs). At the same time, microscopic mechanisms underlying the formation of such strain-induced SPEs are still not fully clear. Here we investigate SPEs in monolayer WSe2 created via nanoindentation. Using photoluminescence imaging in combination with atomic force microscopy, allows us to identify the mechanisms responsible for the formation of SPEs in this monolayer. |
13:30 |
Ultrafast quantum computing with ultracold atom arrays at quantum speed limit
* Kenji Ohmori, Institute for Molecular Science, National Institutes of Natural Sciences, Japan Our ultrafast quantum computer with an ultracold atom array is based on a new concept where a qubit interaction is triggered by an ultrafast laser pulse. It allows for a two-qubit gate essential for quantum computing executed in only 6.5 nanoseconds at quantum speed limit. This ultrafast gate has disruptively accelerated the two- qubit gates of cold-atom hardware by two orders of magnitude. It is also two orders of magnitude faster than the noise from the environment and operating lasers. |
14:30 |
Programmable Interactions between Optical Fields and Atom-like Systems in Integrated Circuits
* Hugo Larocque, Massachusetts Institute of Technology, United States of America Mustafa Atabey Buyukkaya, University of Maryland Carlos Errando-Herranz, Massachusetts Institute of Technology Mark Dong, The MITRE Corporation Andrew Leehneer, Sandia National Laboratories Camille Papon, Massachusetts Institute of Technology Samuel Harper, University of Maryland Max Tao, Massachusetts Institute of Technology Jacques Carolan, Massachusetts Institute of Technology Chang-Min Lee, University of Maryland Christopher Richardson, University of Maryland Gerald Leake, State University of New York Polytechnic Institute Daniel Coleman, State University of New York Polytechnic Institute Gerald Gilbert, The MITRE Corporation Matt Eichenfield, Sandia National Laboratories Michael Fanto, Air Force Research Laboratory Edo Waks, University of Maryland Dirk Englund, Massachusetts Institute of Technology Various quantum networking and computing protocols involve processing quantum information stored in photons and interfacing them with atom-like systems. Enabling such programmable interactions at scale continues to be an open challenge in quantum photonics. Here, we explore the use of multimode interference as a means for unitary transformations onto a set of optical spatial modes and large-scale silicon photonics for interfacing with hybrid integrated quantum dot emitters within programmable photonic integrated circuits. |
14:55 |
TBC
* Lukas Chrostowski, University of British Columbia, Canada TBC |