Vitaly Lazarevich Ginzburg
1916–2009, Moscow, Russia, Moscow, Russia
Russian theoretical physicist, co-author of the Ginzburg–Landau theory of superconductivity — the template for theories of phase transitions and symmetry breaking.
Ginzburg earned his PhD at Moscow State University in 1940 then joined the Lebedev Institute, where he led the theory department for life. One of the Soviet Union's most versatile theorists — from plasmas and superconductors to cosmology — he also worked on the Soviet hydrogen bomb program.
In 1950, with Landau, he built the phenomenological theory of superconductivity using a complex 'order-parameter wavefunction' — the Ginzburg–Landau theory. Their notion of order parameter and 'Mexican-hat' potential later became the common language of phase transitions, superfluidity, and even the Higgs mechanism in particle physics. He received the 2003 Nobel at age 87.
Nobel-winning work
The Ginzburg–Landau theory (1950) described superconductivity without knowing the microscopic mechanism: a complex order parameter ψ (acting as a 'macroscopic wavefunction' of electron pairs) plus two measurable coefficients define the free energy. Two characteristic lengths follow — the magnetic penetration depth λ and the coherence length ξ — and their ratio κ = λ/ξ decides whether a material is type I or type II.
Though built phenomenologically, the theory was later proven the exact limiting form of microscopic BCS theory (Gorkov, 1959), and it let Abrikosov find the vortex lattice. More deeply, the GL equation is the first instance of a 'field theory with spontaneous symmetry breaking' — the same mathematical structure later appearing in cosmic phase-transition theory and the Higgs field. The 2003 Nobel honored this foundational role.
Workplaces: Lebedev Physical Institute, Moscow
Russia