Events

Join us for Quantum Today, where we sit down with researchers from the University of Waterloo’s Institute for Quantum Computing (IQC) to talk about their work, its impact and where their research may lead.

IQC Seminar featuring Dr. Stephen Vintskevich

There are multiple challenging issues one must address to boost further the nascent field of quantum technologies. The most common are reducing noises’ affection on a given quantum protocol’s performance, performing well-controlled quantum operations, and developing general frameworks for mapping various practical problems into quantum algorithms performed in different quantum devices. ...

IQC Seminar featuring Ali Assem Mahoud

This talk aims to highlight some mathematical tools that can be used in prob- lems related to quantum computing. We start with monogamy-of-entanglement games and study how to approach them through the Haar measure on unitary matrices. ...

Impromptu Poster Session

Please join us for the IQC Student Seminar on Wednesday Nov 16 at noon. This week’s seminar will take place in the form of an impromptu poster session, where students joining will be divided into groups and discuss each other's current work using the whiteboard. This is to encourage students to talk about their work in progress, while practicing communication skills by presenting to non-experts. It's also a great way to learn how big the field of quantum research is!

IQC Student Seminar Featuring - Robbie King, Caltech - ZOOM

It is impossible to solve the local Hamiltonian problem exactly, assuming P is not equal to QMA. Instead, one can ask for approximation algorithms, which output states achieving good energy uniformly across all instances. Semi-definite programming (SDP) has achieved great success in approximation algorithms for classical constraint satisfaction. But how can we round the SDP to an entangled quantum state? Variational quantum algorithms can capture entangled quantum states. ...

ZOOM online Seminar Featuring Ahmad Farooq, Ph.D. - Kyung Hee University

Reliable and efficient reconstruction of the quantum states under the processing of noisy measurement data is a vital tool in fundamental and applied quantum information sciences owing to communication, sensing, and computing. Noisy intermediate-scale quantum (NISQ) computers are expected to perform tasks that surpass the capability of the most powerful classical computers available today. ...

Impromptu Poster Session

Please join us for the IQC Student Seminar on Wednesday Nov 23 at noon. This week’s seminar will take place in the form of an impromptu poster practice session, where students will discuss interesting research on the whiteboard. This is to encourage students to talk about their work in progress, while practicing communication skills by presenting to non-experts. It's also a great way to learn how big the field of quantum research is! No prior preparation is necessary.

As always, pizza lunch will be provided to attendees.

ZOOM - IQC Math and CS Seminar - Speaker: Tony Metger, ETH Zurich

To use a cryptographic protocol in practice, one has to prove that it is secure against general attacks: even if an adversary performs a complicated attack involving all of the rounds of the protocol, they cannot compromise security. A much simpler task is to prove security against collective attacks, where the adversary is assumed to behave the same in each round. In this work, we develop a new information-theoretic tool, called the generalised entropy accumulation theorem (GEAT), for reducing security against general attacks to security against collective attacks. ...

IQC Colloquium featuring Professor Jaewan Kim, Professor/Vice-President of Korea Institute for Advanced Study (KIAS), President of Quantum Information Society of Korea (QisK)

A coherent state can be interpreted as a superposition of pseudo-number states with equal weight. Using cross-Kerr nonlinearity two coherent states can be made into a maximal entanglement of pseudo-number states and pseudo-phase states. Some applications of the entanglements of pseudo-number/phase states, such as quDit teleportations, will be discussed.

Categories of Kirchoff Relations

Abstract: I will be talking about the connections between electrical circuits and stabilizer qudit quantum circuits with an eye towards applications to qudit quantum error correction. More formally I will be defining a category dubbed Kirchhoff relations and characterize the maps in this category using parity check matrices. I will then go on to give a universal set of generators for this category and interpret these generators in-terms of electrical elements.

This is work in progress.