Welcome to QTalks under QWorld
QTalks is our new project, which aims to disseminate knowledge in the field of quantum software and quantum technologies, as well as share the experiences of people working in these fields.
QTalk in Pakistan
Unlimited non-causal correlations and its relation to non-locality by Amin Shiraz Gilani
Wednesday, January 20, 2021, at 20:00 Pakistan time (15:00 GMT) | Organized by QPakistan
Moderator: Jibran Rashid
YouTube link: https://youtu.be/fsp08T7b3kM
The traditional notion of causal order dictates that a space-time event cannot influence any event in its past. There exist motivations to relax this notion from the quest to combine general relativity with quantum theory. This has led to the search for physical principles that re-establish causal order. We ask whether causal order arises in the limit of multi-particle correlations and find multi-party non-causal correlations for any number of parties that are in agreement with all principles thus far posed. However, these correlations violate a family of causal inequality maximally, while under the assumption of causal order the corresponding game can at most be won with probability half in the limit of the number of parties. This implies that the space of logically consistent correlations is infinitely larger than the space of correlations based on the assumptions of causal order. The game is closely related to Ardehali-Svetlichny nonlocal game. We leave open the search for reasonable principles that establish causal order. It seems that as of today, the only way to establish causal order is to assume it.
Amin Shiraz Gilani is currently a computer science graduate student at the University of Maryland – College Park. In his internship with Dr. Ämin Baumeler at the Institute of Quantum Optics and Quantum Information, he explored the fundamental nature of noncausal correlations and their relation to nonlocality. He has presented his research at QIP 2018 and 2020, the latter earning him a best poster award.
QTalks about Quantum Games
Saturday, December 12, 2020 | organized by QTurkey
Quantum Game and other science-based games by Piotr Migdał
Quantum Game with Photons is a puzzle game simulating an optical table. You can interact with superposition, entanglement, measurement, and other quantum phenomena with a LEGO bricks-like interface. I will mention Explorable Explanations and other science-based games related to other aspects of physics or computing. The main goal is to inspire YOU to make YOUR own quantum game. I will share some resources that may be inspiring or directly used to create your game (even if it is your first game).
Gamifying Quantum Computation by Cheshta Joshi & Shreyas Nisal
From Cheshta and Shreyas:
Entry into quantum computing is often daunting. We move from classical computers which work on zeros and ones to quantum computers, where quantum-bits can be in superpositions (mixtures) of zeros and ones, and where these bits can become correlated to each other. To simplify understanding these phenomena and to understand logic gates used in quantum computers, we developed QLogic, a puzzle game based on quantum computing.
Quantum Odyssey – a video game that immerse you in Quantum Computing by Laurentiu Nita
Quantum Odyssey is first, a video game. The player does not need to know any math, physics or anything about computation or quantum; or even be a fan of quantum computation (it can be played just for the fun of solving a new type of a puzzle game).
The odyssey starts by discovering bits, linear algebra, complex numbers, qubits, all quantum phenomenon and important algorithms. By the end of the playthrough, the Player will have all the “hacker tools” needed to design their own algorithms, understand papers on Universal Quantum Computing and create their own or find more efficient dozens of gates long quantum algorithms.
QTalk in Latvia | Quantum supremacy by Janos Asboth
19:00 (GMT+3), Wednesday, October 21, 2020 | organized by QLatvia
Moderators: Maksims Dimitrijevs & Anastasija Trizna
YouTube link: https://youtu.be/698Ggy50XaQ
Perhaps the most important recent milestone in the exciting progress of quantum computing was passed last year, with the achievement of quantum supremacy by the UCSB-Google group. I was as excited to hear of this result as any of us working in the field of quantum information. I will discuss what quantum supremacy means, how it was demonstrated by Google’s group, and how this fits into the pattern of progress of quantum computing.
Disclaimer: I am not associated with Google, and did not take part in the experiment.
Janos Asboth is associate professor at the Budapest University of Technology and Economics, and Senior Research Fellow at the Wigner Research Centre for Physics in Budapest. He is doing research in theoretical quantum physics, studying generalizations and applications of topological phases, a topic at the interface between quantum information and solid state physics. Prior to his current position at the Wigner Centre, he held a post-doc position in Leiden. Janos obtained his PhD at University of Innsbruck.
Polarization of Light with Quantum Game by Piotr Migdał
19:00 (GMT+3), Tuesday, October 20, 2020 | organized by QLatvia
Moderators: Abuzer Yakaryilmaz & Viktorija Laimane
YouTube link: https://youtu.be/QKBHIaFxLMQ
Light is an electromagnetic wave. One of its key properties is polarization – the axis of oscillations. This phenomenon is used in photography, LCD screens, and quantum information. We will perform virtual experiments on how does the polarization interacts with mirrors, sugar solution, or magnetic field. All experiments in the Quantum Game virtual lab: https://quantumgame.io/
Piotr is a quantum physics (PhD from ICFO, Castelldefels), and a specialist in AI and data viz. He co-founded Quantum Flytrap – an in-browser simulation & visualization of quantum mechanics. Piotr enjoys explaining complicated things in simple ways, ideally with interactive data visualizations. He develops livelossplot – a Python package for visualizing the training process in Jupyter Notebook, and Quantum Tensors – a TypeScript package for interactive quantum information and computing. https://p.migdal.pl / https://github.com/stared
My quantum journey by Laura Mančinska
19:00 (GMT+3), Thursday, October 22, 2020 | organized by QLatvia
Moderators: Viktorija Laimane & Krista Petersone
“In this talk, I will share my professional journey into the strange world of quantum superposition and entanglement, where two friends, Alice and Bob, might even appear to have telepathic powers. It all began with a research seminar led by Prof. Rūsiņš Freivalds at the University of Latvia and continued with graduate studies and researcher appointments at various quantum computing centers across the globe. I will talk about what it takes to be a researcher and why I find the area of quantum computing particularly exciting. We will also see how simple games can be used to understand the power and limitations of quantum entanglement and even test proper functioning of quantum devices.”
Laura Mančinska is an Associate Professor at QMATH, Department of Mathematical Sciences, University of Copenhagen. Her research falls within the area of quantum information and computing and she is particularly interested in the phenomenon of quantum entanglement and its applications. In her research she combines tools from different areas including complexity theory, optimization, and graph theory. Before her current appointment at QMATH, Laura has held postdoctoral positions at the National University of Singapore and University of Bristol, UK. She holds a PhD in Quantum Information from the University of Waterloo, Canada.