International Union of Pure and Applied Physics

International Union of Pure and Applied Physics
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Name	International Union of Pure and Applied Physics
Founded	1922
Headquarters	Trieste, Italy
Region served	Worldwide
Focus	Physics
Website	https://iupap.org/

International Union of Pure and Applied Physics. It is a non-governmental organization dedicated to the promotion and advancement of physics worldwide through international cooperation. Established in the aftermath of World War I, it operates under the principle that science transcends national boundaries. The union facilitates collaboration among physicists, supports major international conferences, and helps define standards in the field.

History

The organization was conceived in 1922 during a meeting of the International Research Council in Brussels, with prominent early supporters including Hendrik Lorentz and Robert Andrews Millikan. Its formation was part of a broader post-war effort to rebuild scientific ties, similar to the establishment of the International Union of Pure and Applied Chemistry. Activities were severely disrupted by World War II, leading to a period of dormancy. It was successfully revived in 1947, with key roles played by figures like Niels Bohr and John Desmond Bernal, aligning with the post-war scientific reconstruction efforts led by UNESCO. Since its re-establishment, it has grown to become a leading global voice in physics, sponsoring pivotal gatherings such as the International Conference on High Energy Physics and the International Conference on Low Temperature Physics.

Organization and governance

The supreme governing body is the General Assembly, which convenes every three years and is composed of delegates from its national member bodies. Day-to-day operations are overseen by an elected Executive Council, led by a President and Vice-Presidents, with past presidents including notable physicists like C. N. Yang and Yves Quéré. The secretariat, historically located in London and later Geneva, is now based at the Abdus Salam International Centre for Theoretical Physics in Trieste. Key committees, such as the Commission on Symbols, Units, Nomenclature, Atomic Masses and Fundamental Constants, work to establish global standards. The union maintains formal relations with other major scientific bodies like the International Council for Science and the International Union of Crystallography.

Activities and programs

A primary function is the sponsorship and endorsement of major international conferences across all sub-disciplines of physics, including the International Conference on Atomic Physics and the International Conference on Statistical Physics. It runs the Young Scientist Program to support early-career researchers from developing countries attending these events. The union actively promotes the free circulation of scientists, advocating for policies that reduce political barriers to collaboration, a principle championed during the Cold War. It also initiates global studies on emerging fields, such as its early work on quantum information science, and collaborates with organizations like CERN and the International Astronomical Union on interdisciplinary projects.

Commissions and divisions

Scientific work is structured through a system of specialized commissions and divisions, each focusing on a specific sub-field. Key divisions include those for Astrophysics, Condensed Matter Physics, and Particles and Fields. The Commission on Physics for Development works to build capacity in less scientifically developed regions, often partnering with institutes like the African Institute for Mathematical Sciences. Other commissions address education, history, and the physics of industry. These bodies organize topical conferences, publish reports, and develop educational materials, ensuring the union's engagement spans from fundamental research to applied technological challenges.

Member countries and bodies

Membership consists of national academies, physical societies, or research councils representing individual countries or territories, such as the American Institute of Physics for the United States and the Institute of Physics for the United Kingdom. As of the early 21st century, it has over 60 national members, including major scientific nations like Germany, Japan, and China, as well as many developing nations. Associate members include regional physical societies like the European Physical Society. The union's statutes ensure that each member country has one vote in the General Assembly, fostering a collaborative and equitable international framework.

Publications and awards

While not a primary publisher, it sponsors and endorses several prestigious journals and conference proceedings, including those from the International Conference on Physics Education. Its most recognized award is the ICTP Raman Prize for outstanding research by a physicist from a developing nation, established in collaboration with the Abdus Salam International Centre for Theoretical Physics. It also awards the IUPAP Young Scientist Prize in various sub-fields. The union periodically issues influential reports and recommendations, such as those on constants and units, which are adopted by standard-setting bodies worldwide including the International Bureau of Weights and Measures.

Category:International scientific organizations Category:Physics organizations