Andrew White from the quantum technology laboratory at the University of Queensland, Australia, maintains an excellent web page listing conferences related to quantum technology around the world.   You can find his most recent listing for 2020 conferences here.

In addition to the conferences shown on the list mentioned above, here are some additional conferences:

The Quantum Computing Theory in Practice (QCTIP) conference will be held as a virtual online event on April 6-8, 2020. QCTIP fosters discussion between theorists and practitioners of quantum computing. With keynote speakers, a series of invited talks from academia and industry, poster sessions and panels, it will take stock of the newest developments in the field and map future developments.  The first theme of the conference is the theory of the whole quantum software stack – from quantum algorithms to quantum programming languages to quantum computing architectures. Second, will be a discussion of practical aspects of running experiments on current and NISQ devices. As a third future-looking theme, the conference will touch on roads to scaling up to more and higher quality qubits and the path to bringing down hardware requirements for quantum computations.

The Quantum.Tech London conference will be held in London, U.K.  Due to the COVID-19 situation, the conference is being postponed and a new date will be announced soon. The conference will help attendees understand the entire landscape and ecosystem of quantum technologies, and how they fit together.  Questions that will be addressed in the conference include: What are relevant applications for enterprise use, and how developed are they? How coordinated is the approach between industry, academia and government, not just within national borders, but between nations? How developed is the broader supply chain if commercialization is to be accelerated? Are standards in place to allow replicable processes? What methods are there to benchmark, share best practices and learn from disparate industries?

The 2020 Quantum Computing User Forum will be held on April 21-23, 2020 in Oak Ridge Tennessee at the Oak Ridge National Laboratory. It will bring together users to discuss common practices in the development of applications, software, and simulations for quantum computing systems. The three-day meeting will include invited and contributed presentations from leading researchers in the field of quantum computer science, and it will provide a forum to discuss the latest scientific applications of quantum computers. An optional training event will be provided for new quantum computing users, and a poster session will be held to showcase the latest research from users.

The Philadelphia/Harrisburg Quantum Computing Meetup will be holding a meeting on April 27, 2020 as an online event. The topic will be “The Emerging Role of Quantum Computing in  Machine Learning” and will be presented by Max Henderson, Senior Researcher at Rigetti Computing.

The University of Bristol will be hosting the Bristol Quantum Information Technologies Workshop on April 27-29, 2020. It will now be a virtual workshop that will be held online. It is a three day annual workshop aimed at enabling leading UK and international academics and industrial partners to come together; to explore and discuss future ambitions and challenges in the field of Quantum Information Technologies.

The second International Quantum Resource Estimation (QRE2020) workshop will be held as a virtual online conference on May 30, 2020. The workshop is focused around developing techniques and tools that aid quantum software and algorithm design, informed by the realities of the hardware architectures. QRE shifts the perspective from complexity theoretic arguments to quantitative computer architecture arguments. QRE is the forum to share research on the near term feasibility of interesting quantum algorithms and participation is encouraged from those working in quantum algorithm optimization, error-correction, architecture design, quantum compilation, classical control and resource benchmarking. Proceedings from the conference will be published in the IEEE Transactions on Quantum Engineering.

Inside Quantum Technology – New York, The Future of Quantum Computing, Quantum Cryptography and Quantum Sensors in New York City has been moved to a new date of July 8-9, 2020. This event is a follow-on to the 2019 events held by IQT in Boston and Europe in 2019. This event is intended for business people and professionals in the quantum technology field who want to keep track of all relevant information to make strategic choices. It will provide comprehensive insights into the commercial future of all areas of quantum technology, presenting both opportunities available today and future applications for businesses and government. New York is the center of the financial world and this means enhanced attention to the conference from both investors and media outlets.

A Quantum Information Science & Technology Summit has been postponed until September 2020 with a specific date to be determined soon.  It will be held at the New York Academy of Sciences in New York City. This summit is organized by the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory as part of DOE’s InnovationXLab series.  It will connect leaders in the finance and banking, technology, communications, energy and materials sciences sectors to discuss how to accelerate Quantum Information Science & Technology (QIST) advancements that impact the nation and world.

The EPIC World Industrial Quantum Photonics Technology Summit will be held at the University of Glasgow in Glasgow, UK on September 3-4, 2020. The purpose of the summit is to bring together companies in the supply chain for five product ranges including quantum clocks, quantum imaging, quantum sensors, quantum computers and quantum communications networks.

The 9th annual Adiabatic Quantum Computing Conference (AQC 2020) has been cancelled.  Instead AQC 2020 will coincide with a conference on Quantum Annealing / Adiabatic Quantum Computing at the International Center for Theoretical Physics in Trieste, Italy, to be held on September 7-11, 2020.

The conference on Quantum Annealing / Adiabatic Quantum Computing will be held at the International Center for Theoretical Physics in Trieste, Italy on September 7-11, 2020. The conference will deal with academic and basic research on quantum annealing and adiabatic quantum computation with a broad focus including quantum approximate optimization (QAOA) and other variational quantum approaches and in close connection with the neighboring fields of Quantum Simulations and Quantum Computation.

The Quantum Technology International Conference 2020 (QTech 2020) will be held in Barcelona, Spain on November 2-4, 2020. The objectives of the conference is to present the latest developments of quantum technologies in the domains of quantum communication, computation, simulation, sensors and metrology, and their implementation using various platforms from atoms and ions to solid states, superconducting circuits and optics.

The IQT Europe 2020 conference will be held at The Hague Conference Center in the Netherlands on November 9-11, 2020.  The conference will be produced by Inside Quantum Technologies, QuTech and 3DR Holdings and will be their second annual European conference. Details and a link to the website will be posted at a later date.

The IEEE Quantum Week, also known as the IEEE International Conference on Quantum Computing and Engineering (QCE) will be held in Broomfield, Colorado on October 12-16, 2020. This conference aims to bring together quantum professionals, researchers, educators, entrepreneurs, champions and enthusiasts to exchange and share their experiences, challenges, research results, innovations, applications, pathways and enthusiasm on all aspects of quantum computing, engineering and technologies.

The Second European Quantum Technology Conference (EQTC) will be held in Dublin, Ireland on November 23-27, 2020.  This will be a follow-on to the first EQTC conference held in Grenoble, France in 2019. EQTC 2020 will provide full coverage of the most prominent and recent advances in European and International quantum technology activities across basic sciences, communication, computing, simulation and sensing/metrology. The conference program addresses a wide range of topics in quantum technologies including fundamental science, infrastructure development, industry engagements, education & training, encouraging and facilitating gender balance in the quantum community, international cooperation, and policy-making. It will provide a forum to highlight the state-of-the-art in quantum technologies both in Europe and from around the world.

The fourth annual Q2B Conference presented by QCWare will be held in Silicon Valley, California on December 8-10, 2020.  Details and a link to the website will be posted at a later date.