New posts in Field Theory

Varying the Einstein-Hilbert action without reference to a chart

How do fields co-exist physically?

Can the center of charge and center of mass of an electron differ in quantum mechanics?

Making use of functionals in Martin Siggia Rose formalism

Group representations and active/passive transformations

Is the Landau free energy scale-invariant at the critical point?

Global $U(1)$ symmetry of 2+1D Abelian-Higgs Model

Maxwell's equations from continuum limit

When can we handle a quantum field like a classical field?

Covariance in gauge theories: why should the Lagrangian be gauge invariant