World Quantum Day

World Quantum Day is an international event celebrated on April 14 every year. It aims at promoting public awareness and understanding of quantum science and quantum technology around the world.^[1][2][3]

World Quantum Day
Also called	WQD
Type	International
Date	April 14
Frequency	Annual
First time	April 14, 2022

History

World Quantum Day started on April 14, 2021, as an initiative by an international group of scientists.^[4] The initiative was joined by engineers, educators, science communicators, organizations and others to celebrate the first World Quantum day on April 14, 2022.^[5] The date April 14 was chosen because "4.14" represents the rounded first 3 digits of the Planck constant: 4.14×10⁻¹⁵ eV·s.^[1][6]

The US Senate passed a resolution on May 2, 2023, commemorating and supporting World Quantum Day.^[7]

Events

The first World Quantum Day in 2022 included over 200 events in more than 40 countries across 5 continents,^[4] while in 2023 the number of events surpassed 400.^[8] World Quantum Day is celebrated on and around April 14, since the events do not necessarily have to be on the exact same date.^[8]

The activities included talks, symposiums, panel discussions, laboratory tours, artistic creations, and interviews.^[4][9][10]

Organization

The global initiative is supported by the World Quantum Day Coordination Team and representatives from more than 65 countries.^[11][12] Each country has 1 or 2 representatives in the World Quantum Day network.^[11]