IAPS 2022-2023 jIAPS

The Quantum Now: Let’s Celebrate World Quantum Day!

Author: Zlatan Vasović

Have you ever thought that physics is missing its international day? A new initiative by quantum scientists around the world could just change that— an initiative to celebrate April 14 as World Quantum Day. Its main goal is to promote quantum science and technology around the world.

The importance of quantum has been growing, and so has the need to promote the understanding and achievements of quantum science. The Nobel Prize in Physics 2022 confirms this—it was awarded to Anton Zeilinger, Alain Aspect, and John F. Clauser for their work on tackling fundamental questions of quantum mechanics. This gives us a special occasion to celebrate the fundamentals of quantum science, its applications, and its possible impact on our society.

World Quantum Day originally started as a decentralized initiative by scientists around the world. It was launched on April 14, 2021, as the countdown towards the first celebration on April 14, 2022. The date was chosen as a reference to 4.14, the rounded first digits of Planck’s constant: 4.13567×10-15 eV·s.

The first World Quantum Day was celebrated in 2022 through 200+ events in 40+ countries. The events promoted all domains of quantum science, as well as its history, foundations, applications, and philosophical and societal implications. There are both online and in-person events, meaning that you can take part wherever you are in the world. 

Now the second celebration is just around the corner. It’s set for April 14, 2023, but the events don’t have to be on that exact date. You can find more information on how to engage at

Let’s celebrate World Quantum Day!

Editor’s Note – jIAPS is celebrating World Quantum Day too: the April photo competition is Quantum themed and is listed on the World Quantum Day website. Enter your quantum or physics-themed photos by emailing them to us at