Did you know? · Science & Medicine

Vitaly Ginzburg kept a famous list of physics' big questions

For three decades Vitaly Ginzburg compiled and updated a list of the most important unsolved problems in physics, publishing 30 problems for the 21st century in 1999.

Vitaly Ginzburg
Vitaly Ginzburg · 1916–2009
Person
Vitaly Ginzburg
Lived
1916–2009
Field
Theoretical physics
From
Russian

The story

Vitaly Ginzburg believed that every physicist should have a broad view of the whole field, not only of their own speciality. Over a long career at the Lebedev Physical Institute in Moscow he worked on optics, radio waves, superconductivity, ferroelectrics, plasma physics and astrophysics, and he saw how easily researchers could lose sight of the larger landscape. To help, he drew up a list of what he considered the most important and interesting open problems in physics and astrophysics.

He kept revising it for decades. In 1971 the list included 17 problems, and by 1985 it had grown to 20. In 1999 he published a list of 30 problems for the twenty-first century. They ranged from controlled nuclear fusion, high-temperature superconductivity and metallic hydrogen to Bose-Einstein condensation, nanotubes and the behaviour of matter in extremely strong magnetic fields. In particle physics they took in quarks and gluons, grand unification, neutrino mass and string theory, and in astrophysics gravitational waves, inflation, black holes, the formation of galaxies, dark matter, gamma-ray bursts and the origin of the highest-energy cosmic rays.

Alongside the list he set out three great problems of a deeper kind: the increase of entropy and the arrow of time, the interpretation of quantum mechanics, and whether the origin of life and thought can be explained by physics alone.

Ginzburg presented the list in his 2003 Nobel lecture, and it was published again in his 2005 book About Science, Myself and Others. The physicist Ivan Bozovic, who knew the family, called it simply the Ginzburg list. Ginzburg also ran a famous weekly seminar in Moscow for nearly half a century, and the list served a similar purpose: keeping physicists aware of what was happening beyond their own corner of the subject.

Many problems on the list have since seen striking progress. Gravitational waves have been detected, Bose-Einstein condensates are made in laboratories, and superconductors that work at ever higher temperatures continue to be found. Others, such as the nature of dark matter and the arrow of time, remain as open as when he wrote them down.

Why it matters

Ginzburg's list became a widely read guide for students and researchers, encouraging them to look beyond their own work towards the great open questions of science.

About Vitaly Ginzburg

Soviet-Jewish physicist whose Ginzburg–Landau theory of superconductivity won the 2003 Nobel Prize, and who survived Stalin’s antisemitic purges to become a fearless public voice.

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Vitaly Ginzburg
1916–2009 · Theoretical physics
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Sources

Another act of tikkun olam. This is part of tikkun olam, the Jewish idea of repairing the world, and every one of us can add to it.

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