the 2026 CLEO Conference & Exhibition
2026-05-17 08:00 - 2026-05-21 17:00 UTC | charlotte, charlotte, United States
Comprehensive, peer-reviewed technical sessions and market-focused programming, CLEO is the world’s premier international forum to learn about innovative advances, research and new technologies from the laser science industry. From quantum computing to advanced imaging technologies used to search for new life and planets in the galaxy, CLEO brings together all aspects of electro-optic technologies.
With a distinguished history as the industry’s leading event on laser science, the Conference on Lasers and Electro-Optics (CLEO) is the premier international forum for scientific and technical optics, uniting the fields of lasers and opto-electronics by bringing together all aspects of laser technology, from basic research to industry applications.

Q-EXPO 2026
2026-05-18 08:00 - 2026-05-20 17:00 | Bilbao, Bilbao, Spain
Building on the success of Q-Expo 2024—which hosted 28 exhibitors and over 400 participants—the 2025 edition expanded significantly, featuring 32 exhibitors & sponsors, delegates from 21 countries, and over 590 attendees.
Hosted by the European Quantum Industry Consortium (QuIC) the Voice of the European Quantum Ecosystem.

The 2nd International Conference on Siam Quantum Science and Technology (SQST) 2026
2026-05-18 08:00 - 2026-05-21 17:00 | Thailand
Quantum Science and Technology, in recent years, have emerged as significant research areas globally, drawing attention and contributions from government sectors, academic institutions and even industries. Thailand is catching up and has established a research funding scheme to support cutting-edge quantum technology research.
Following the success of Siam Quantum Science and Technology (SQST) in Krabi, Thailand in 2024, this time, SQST 2026 will be the second international conference at Centara Life Maris Resort Jomtien, Chonburi, Thailand, that focuses on research topics related to quantum science and technology. This event aims to reflect the growing quantum-research community in the country and the government’s commitment to frontier science in the field. The goal of this conference is to bring together researchers from overseas and within Thailand, fostering collaboration, knowledge-sharing, and inspiring young scientists in the field of quantum science and research. The event will feature invited speakers, contributed speakers, and poster presentations selected from submitted abstracts, for the duration of 4 days in late May.
The SQST 2026 conference is hosted by Siam Quantum Square, Faculty of Science, Chulalongkorn University, in collaboration with Quantum Technology Research initiative collaboration (QTRic).

Quantum Energy Initiative Workshop
2026-05-18 08:00 - 2026-05-22 17:00 | ICFO, Castelldefels, Spain
The third Quantum Energy Initiative Workshop will happen at ICFO, Castelldefels (Barcelona, Spain) from the 18th to the 22nd of May 2026. Save the date !
Launched in August 2022, the Quantum Energy Initiative is fostering a worldwide community of experts willing to develop scientific approaches to evaluating and minimizing the physical resource costs of emerging quantum technologies. This requires the synergy of a broad range of expertises, from fundamental quantum physics to enabling technologies, from hardware to software, from research to industry.
Building on the strong foundations at the first workshop (Singapore, Nov 2023), and second workshop (Grenoble, Jan 2025), this third workshop will bring together highly renowned speakers of all these areas, to provide their vision on these exciting and essential questions. It will also leave time for discussions and crossed-fertilization to the build new methodologies and roadmaps.

Quantum Meets 26
2026-05-19 08:00 - 2026-05-21 17:00 | Delft, Delft, Netherlands
Quantum Meets is a series of refreshingly different quantum events.
Expect another week full of sessions, unexpected encounters, and a warm, collaborative atmosphere, all shaped by the quantum community.

2026 Quantum Summer Learning Workshop
2026-06-01 08:00 - 2026-06-05 17:00
NC State University, a national leader in quantum engineering and semiconductor innovation, will host the first Summer Workshop on Quantum Machine Learning for Complex Science and Engineering Problems. This five-day intensive program, hosted by the NC State Quantum Initiative, will bring together leading experts and emerging researchers to explore foundational aspects and advanced hybrid quantum-classical methods for solving real-world scientific and engineering challenges in chemistry, materials, and engineering.
Quantum information and computing technologies are rapidly reshaping scientific discovery, enabling breakthroughs in materials, chemistry, pharmaceuticals and climate modeling. To ensure U.S. leadership in this emerging field, the next generation of scientists, engineers, and innovators must be trained at the intersection of quantum computing and machine learning, Quantum Machine Learning (QML).
The event is strategically designed to accelerate education, collaboration, and workforce development across academia, national labs, and industry partners in the Research Triangle and beyond.

Quantum ARC: Inside Scotland's Quantum Ecosystem report launch
2026-06-01 09:00 - 17:00 | Glasgow, United Kingdom
A day of discussions, insights, and strategic exchanges to celebrate a major new report on Scotland’s quantum ecosystem hosted by QURECA.

Join us in Glasgow on Monday 1 June for the launch of the Quantum ARC Scotland report, a landmark assessment of Scotland’s quantum ecosystem and its place in the global quantum economy. Learn how Scotland has built one of the world’s top five quantum clusters and how it can maintain its strategic edge. The day brings together technology companies, investors, researchers and policymakers for a full programme of discussion and debate — from ministerial perspectives to company presentations and panel discussions on questions around infrastructure, investment, and workforce.
As well as a packed agenda, there will be networking opportunities to make new connections across the Scottish quantum ecosystem (and beyond) from academia, industry, investment, and policy.

Quantum Spintronics 2026
2026-06-02 08:00 - 2026-06-04 17:00 | Trondheim, Trondheim, Norway

ScyLight Conference 2026
2026-06-02 08:00 - 2026-06-04 17:00
Join us for the 9th Annual ScyLight Conference, taking place in June 2026!

This conference is the yearly gathering of European and Canadian industry leaders and subject matter experts, presenting the latest advancements in optical and quantum communication technologies under ESA’s Optical & Quantum Communications – ScyLight strategic programme and beyond. It offers a dedicated forum for stakeholders to exchange ideas, share knowledge, and explore future directions.
The event will include concise pitches, expert talks from industry and ESA representatives, and insights from leading voices in the satcom market.

Quantum Thermodynamics and Decoherence
2026-06-03 08:00 - 2026-06-04 17:00 | Rochester

EU wide community workshop on quantum gravimetry
2026-06-03 08:00 - 2026-06-05 17:00
This workshop is organized with the main objective to obtain feedback by the entire European community. Opinions, comments and thoughts on EQUIP-G project activities will contribute to shaping key aspects on the future of (terrestrial) gravimetry. This is centered around the main long-term goal to establish a permanent perennial entity of a shared park of quantum gravimeters in Europe.
The workshop is addressed to all interested and relevant person from EU policymaker to European companies and geophysical service providers and different communities (geodesy, quantum sensing, metrology, geosciences and defense). We want to underline that the focus area is Europe.
Participants will be informed not only about the project structure and goals but about finished, ongoing and planned activities, spanning the entire scope of the project. The workshop involves various formats (presentations, panel discussions, display area, break-out activities and discussions).
Join, be active and enjoy this workshop which is organized for all of us!

Discovering Post-Quantum Cryptography
2026-06-03 17:00 - 20:00 | London
Hear from quantum and cryptography experts: Gain insight from specialists shaping post‑quantum standards, quantum‑safe systems, and real‑world security applications.
Understand the quantum security challenge: Explore how quantum computing threatens existing cryptographic models – and what “harvest now, decrypt later” means in practice.
Discover Mastercard’s approach: Learn how Mastercard is actively preparing for the quantum era through research, standards leadership, and industry collaboration.
Connect with the quantum ecosystem: Network with innovators, researchers, technologists, and security leaders working to make our digital economy quantum‑safe in Ireland and beyond.

Q2B Tokyo
2026-06-04 08:00 - 2026-06-05 17:00 | Tokyo, Japan
The conference will be held exclusively in-person and presented in Japanese and English, with real-time interpretation.

Quantum Technologies for Computation and Communication
2026-06-08 08:00 - 17:00 | Corsica, France
The summer school “Quantum Technologies for Computation and Communication” will take place in 2026 from Monday June 8 to Saturday June 20 at Institute of Scientific Studies of Cargèse (IESC, Corsica, France).
It is organized by the Quantum technologies “Groupement de recherche” (GdR 2149) and aims at providing researchers, especially at the early career level, a set of lectures focussing on
Quantum computation
Error correction
Quantum communications
Interconnects
and will cover topics ranging from foundations down to implementation across a variety of experimental platforms including cold atoms, ions, photons, spin qubits, and superconducting circuits.

Photonics for Quantum
2026-06-08 08:00 - 2026-06-11 17:00 | Waterloo, Canada
Share your research, challenges, and breakthroughs at this leading quantum photonics conference in Waterloo

London Tech Week
2026-06-08 08:00 - 2026-06-12 17:00 | London
Welcome to London Tech Week, the premier destination for innovation, collaboration, and growth in the tech industry. Each June at Olympia London, we bring together the brightest minds, visionary leaders, and cutting-edge solutions to shape the future of business.
Join us in exploring transformative ideas, connecting with global influencers, and discovering the technologies that will redefine industries. Whether you’re an entrepreneur, executive, or innovator, London Tech Week is your gateway to the insights, connections and opportunities that power growth.
Be part of the movement. Be part of the future.

Quantum Computing Summer School Fellowship
2026-06-08 08:00 - 2026-08-14 17:00 | Los Almos, NM, United States
The Quantum Computing Summer School is an immersive 10-week curriculum that includes tutorials from world-leading experts in quantum computation as well as one-on-one mentoring from LANL staff scientists who are conducting cutting-edge quantum computing research. Summer school fellowship recipients will be exposed to the theoretical foundations of quantum computation and will become skilled at programming commercial quantum computers, such as those developed by IBM, Quera, IonQ, Quantinuum, DWave. Roughly twenty students (with the precise number determined based on the applicant pool) will be awarded a fellowship from LANL for the summer school. The fellowship amount ranges from $10,000 to $20,000, based on academic rank. All students (undergraduate and graduate) are encouraged to apply.

Q-Day Summit™ By Qadastra™
2026-06-09 08:00 - 17:00 | Paris, Paris, France
The Q-Day Summit™ is a closed-door event dedicated to decision-makers, entrepreneurs, and experts. Admission is subject to a rigorous selection process.
The organization reserves the right to decline any application that does not align with the target sectors or functions (C-Level, CISOs, institutional representatives, etc.), in order to preserve the interactivity and cohesion of this gathering of 150 executives.
Post-Quantum Cryptography (PQC)

Migration strategies and cryptographic inventory.
Standardization (NIST) and integration into existing systems.
Management of obsolescence and hybridization of protocols.

Quantum Communication & QKD

Physical infrastructures and key distribution networks (Quantum Key Distribution).
The emergence of the Quantum Internet: sovereignty issues.
Securing critical data flows (finance, energy, defense, etc.).

Quantum Horizons 2026
2026-06-10 08:00 - 2026-06-12 17:00 | Chicago
Building on the success of Quantum Noir 2024 at Harvard, Quantum Horizons brings together the Quantum Science and Engineering community to explore emerging technologies in the Chicago quantum ecosystem.
A training and networking event connecting faculty, researchers, and students with leaders in Quantum Information, Quantum Sensing, and Quantum Networking. Join us in building a collaborative nexus for the next generation of quantum innovators.

Beyond Classical AI: Quantum Machine Learning for Anomaly Detection Across Industries
2026-06-11 10:00 - 11:00
Anomaly detection is one of the most critical challenges across industries, from identifying equipment faults on a factory floor to flagging fraudulent transactions in financial services or detecting irregularities in medical diagnostics. But as data complexity grows and the cost of missed anomalies rises, classical AI is beginning to show its limits.
Quantum Machine Learning offers a fundamentally different approach. In collaboration with Fraunhofer ITWM, WISER developed and benchmarked Quantum Neural Networks (QNNs) on real industrial data, training models on sensor readings from pneumatic systems and rotating machinery to detect faults before they escalate. Our benchmark evaluates a range of encoding strategies and circuit configurations, providing an assessment of the current practical performance of QML methods.
This session uses industrial defect detection as a test case, but the core principles and model architectures apply directly to anomaly detection across many sectors, including financial services (fraud and market surveillance), healthcare (diagnostic and drug quality issues), energy (grid faults and predictive maintenance), logistics (supply‑chain disruptions), and cybersecurity (network intrusions and threat patterns).
In this session, you will:

​See how WISER and Fraunhofer ITWM built QNN models for anomaly detection.

​Understand how quantum circuit choices impact performance, training, and scalability.

​Explore how QML anomaly detection compares to classical approaches.

​Gain a clear view of where Quantum Machine Learning stands today and its path to adoption.

European Conference on Integrated Optics (ECIO)
2026-06-15 08:00 - 2026-06-17 17:00 | Zurich
The European Conference on Integrated Optics (ECIO) is the largest dedicated event on integrated optics in Europe and longest-running event dedicated to cutting-edge research and technological development in integrated photonics and nanophotonics.
The conference focuses on leading edge research on integrated optics, optoelectronics and nano-photonics and gathers experts from academia and industry to show their latest technical results, and showcase their products and services. The application scope is broad and it ranges from tele/datacom communications, optical interconnects, and (bio) optical sensing applications to more disruptive areas as quantum computing and mid-IR photonics.

Optica Quantum 2.0 Conference and Exhibition
2026-06-15 08:00 - 2026-06-18 17:00 | Glasgow, United Kingdom
The Optica Quantum 2.0 Conference and Exhibition brings together the global community driving the next era of quantum technology. Quantum 2.0 harnesses superposition and entanglement in large-scale systems—such as quantum computers, networks and sensors—that move beyond the single-system capabilities of Quantum 1.0.
The program spans quantum computing, communications, devices, sensing, and metrology, alongside discussions of the ecosystem, commercialization and societal impact. Attendees will explore cutting-edge research, emerging applications and the opportunities shaping a quantum-enabled future.

Quantum Device Workshop (QDW) 2026
2026-06-15 08:00 - 2026-06-18 17:00 | Los Angeles, United States
The Quantum Device Workshop is designed to teach advanced undergraduates and graduate students the art of designing quantum devices. QDW 2026 features a 4-day hands-on workshop on how to effectively design, simulate and work with superconducting qubits. We will cover theory and simulation techniques, best practices, and general constraints for designing superconducting devices. We offer an introductory track and an advanced track so that people of all skill levels can gain something from this event. We offer in-person lectures, workshops, and panel sessions. In 2026 we will also offer a Poster session, a design project and a career perspective session. Attendees can register for an online-only option for the lectures and workshop sessions.

Midsummer Conference on Open Quantum Systems, Decoherence, and the Quantum-to-Classical Crossover
2026-06-15 08:00 - 2026-06-18 17:00 | Helsinki
The theory of open quantum systems is essential for describing realistic quantum systems and their interactions with external environments, such as thermal baths or more general uncontrolled environments. Over the years, it has demonstrated its value not only through far-reaching theoretical results but also through its central role in modern experimental implementations. Compared with their closed counterparts, open quantum systems display additional behaviours such as decoherence and dissipation. These processes can give rise to the emergence of a classical description, a concept that lies at the heart of the quantum-to-classical crossover. This is a wide-ranging collection of ideas and tools aimed at explaining how both closed and open quantum systems can manifest as the classical world we observe.
The goal of this conference is to bring together researchers working on open quantum systems and/or the quantum-to-classical crossover. While work combining both fields is welcome, contributions focused on the fundamental aspects of either area are equally valued. Indeed, we believe that studying the fundamentals of each topic can spark interest among both communities. The conference aims to provide a space where results and ideas can be shared, even when they come from different perspectives. The focus will be on the fundamental aspects of these subjects, including experimental work. Because of its foundational focus, this conference will not centre on quantum technologies and applications.

Radiation Impacts in Superconducting Qubits 2026 (RISQ26)
2026-06-15 08:00 - 2026-06-18 18:00 | Madison, Madison, United States

FRANCE QUANTUM 2026
2026-06-16 08:00 - 17:00 | Paris, Paris, France
The most exclusive Quantum ecosystem summit in Europe to drive innovation and collaboration
Join the forefront of quantum technology at the France Quantum 2025 Summit, the premier event showcasing the French Quantum ecosystem to the world. Since 2022, this gathering has united research labs, startups, and industry leaders to explore groundbreaking use cases, democratize quantum innovation, and discover the full potential of quantum technologies to accelerate its adoption. Hosted in Paris at Station F, this summit is your opportunity to connect with key players from public and private sectors, foster collaborations, and contribute to the growth of this transformative field on both local and international stages.

5th annual Commercialising Quantum Global 2026
2026-06-16 08:00 - 2026-06-17 17:00 | London, United Kingdom, London, United Kingdom
Now in its fifth year, Commercialising Quantum Global has established itself as the leading forum for translating quantum science into strategy, scalability, and commercial value. The case study-led agenda is designed to spark essential conversations around how organisations—from pioneering startups to multinational enterprises—should prepare for and implement quantum technologies.
They go beyond speculation, offering a balanced and accessible exploration of the promise, peril, applications, limitations, and realities of this transformative field. At the heart of the event is our commitment to showcasing the most diverse and up-to-date portfolio of end-user case studies, ensuring every session delivers practical insights and measurable lessons for enterprises at all stages of the quantum journey.
Building on the success of our expanded 2025 programme, which celebrated the UN’s International Year of Quantum, the 2026 edition will once again take place in London, featuring two full days of high-impact discussions, interactive formats, and cross-sector networking.
Join global leaders in science, industry, and policy to shape the trajectory of quantum innovation. Be part of the conversations that move the field forward—and get entangled in what comes next.

Optica 2026 Quantum Industry Summit - Fifth Edition
2026-06-16 08:00 - 2026-06-17 17:00 | Glasgow, United Kingdom
The Optica Quantum Industry Summit is back, this time for its fifth installment! This year’s edition elevates the event to new heights by taking place at the Scottish Event Campus in Glasgow, Scotland. By situating the event in Glasgow, we’re at the heart of quantum innovation, offering participants an enriching experience in a city renowned for its significant contributions to the field.
Continuing the tradition of focusing on cutting-edge developments, this year’s quantum summit will concentrate on the advancement of photonics technologies (including lasers, optics, PICs, detectors, and hardware), quantum computing, system integration, memory storage, communication, metrology, and information transmission.
This distinguished Summit serves as a confluence for quantum companies and their prospective supply chain partners, designed explicitly to address the industry’s demands and the substantial challenges on the horizon. Emphasizing collaboration and innovation, we aim to foster connections that spur progress and navigate the complex landscape of quantum technologies.
Join us in Glasgow for the fifth edition of the Optica Quantum Industry Summit, where the quantum journey continues, and the collective potential is limitless. We look forward to connecting, collaborating, and pioneering the future of quantum technologies together!

ETSI/IQC Quantum Safe Cryptography Conference 2026
2026-06-16 08:00 - 2026-06-18 17:00 | ottawa, Ottawa, Canada
We rely on cryptography and other cyber technologies every day to protect our data and secure our digital infrastructures. As progress toward a cryptographically relevant quantum computer advances, we are running out of time to transition to quantum-safe technologies. This is a continually evolving and complex journey and much remains to be understood and navigated.
Designed for members of the business, government, and research communities with a stake in cryptographic standardisation, this forward-looking conference facilitates the knowledge exchange and collaboration on securing cyber infrastructures and business practices against the challenges of quantum computing.
The conference will showcase both new developments from industry and government and cutting-edge potential solutions coming out of the most recent research.
Attending this event is the perfect opportunity to determine your next steps, learn from experts and network with others going through the transition to quantum-safe digital infrastructure. You will encounter the latest research in an actionable way that is tailored to your needs, with specific tracks for both executives and technical experts.

47th ACM SIGPLAN Conference on Programming Language Design and Implementation (PLDI 2026)
2026-06-17 08:00 - 2026-06-19 17:00 | Colorado, Colorado, United States
Welcome to the home page of the 47th ACM SIGPLAN Conference on Programming Language Design and Implementation (PLDI 2026)!

PLDI is the premier forum in the field of programming languages and programming systems research, covering the areas of design, implementation, theory, applications, and performance.
PLDI 2026 will be held in person at the Limelight Boulder in Boulder, Colorado, USA.
The main PLDI conference will be held from Wednesday, June 17, through Friday, June 19. Workshops and tutorials were held on Monday, June 15, and Tuesday, June 16.
