Session Overview |
Thursday, May 30 |
13:00 |
Integer factorization with Shor's Algorithm using Single-Photon Qudits in the Frequency and Time Domains
* Jinwon Yoo, INRS, Canada Nicola Montaut, INRS Matteo Piccolini, Università di Palermo Stefania Sciara, INRS Rosario Lo Franco, Università di Palermo Roberto Morandotti, INRS We present a resource-efficient implementation of Shor's quantum computing integer factorization algorithm by employing high-dimensional frequency and time qudits within a single photon and utilizing programmable fiber-optic devices. We show high-fidelity factorization of the integer N=15. |
13:15 |
Generation and Verification of High-Dimensional Entangled States in Synthetic Photonic Lattices
* Agnes George, INRS-EMT, Canada Nicola Montaut, INRS-EMT, Canada We report on the generation and processing of two- and four- dimensional time-bin entangled states in a synthetic photonic lattice implemented via a coupled fiber loop. Our approach involves employing both uncontrolled and controlled quantum walk schemes to process entangled states. |
13:30 |
A SPRINT-Based Single Photon Subtractor for PNS Attacks on QKD
* Abdolreza Pasharavesh, Institute for quantum computing (IQC), University of Waterloo, Canada Michal Bajcsy, Institute for quantum computing (IQC), University of Waterloo, Canada We present a photon subtraction scheme designed to deterministically extract single photons from multiphoton states within arbitrary input pulses of light. The proposed system comprises two cascaded Lambda-type atoms with transitions selectively coupled to distinct modes of a single chiral fiber. Through numerical simulations, we evaluate the device’s performance in a potential application involving photon-number-splitting attacks against quantum key distribution. |
13:45 |
TBC
* Paul Barclay, University of Calgary, Canada TBC |
14:10 |
Frequency Bin Encoding and Graphs
* Milica Banic, National Research Council of Canada, Canada John Sipe, University of Toronto Marco Liscidini, University of Pavia We present a strategy for designing passive sources of multipartite frequency-bin-entangled states, based on the target state's graph representation. As examples we present integrated sources of three- and four-photon GHZ states, and four-photon L states. We expect generation rates on the order of 10 kHz for picowatt pump powers; the efficiency of these sources and the scalability of the platform identify this as a promising approach for the generation of high-dimensional multipartite entanglement. |
14:25 |
Optimization of deterministic photonic graph state generation via local operations
* Sobhan Ghanbari, University of Toronto, Canada Jie Lin, Quantum Bridge Technologies Inc., Canada Benjamin MacLellan, University of Waterloo, Canada Luc Robichaud, Quantum Bridge Technologies Inc., Canada Piotr Roztocki, Ki3 Photonics Technologies, Canada Hoi-Kwong Lo, University of Toronto, Canada Photonic graph states find ubiquitous use across quantum technologies but are challenging to generate due to the limitations of probabilistic photon-entangling gates in linear optics. Deterministic emitters are promising platforms to overcome these challenges; however, designing generation circuits within such a framework remains a non-trivial task. Here, we introduce an optimization approach that leverages the local equivalency of graphs and employs graph theoretical correlations to converge on designs for efficient and experimentally feasible circuits. The efficacy of our method is highlighted by achieving a 50% reduction in the use of 2-qubit gates for preparing repeater graph states. |