Many-Particle Physics

Matsubara frequency

In thermal quantum field theory, the Matsubara frequency summation (named after Takeo Matsubara) is the summation over discrete imaginary frequencies.

Second quantization

Second quantization, also referred to as occupation number representation, is a formalism used to describe and analyze quantum many-body systems.

Second quantization

Second quantization, also referred to as occupation number representation, is a formalism used to describe and analyze quantum many-body systems.

Формула Кубо

Формула Кубо представляет собой уравнение, которое выражает линейный отклик наблюдаемой величины в зависимости от нестационарного возмущения.