Master equation approach to computing RVB bond amplitudes

Understand

We describe a "master equation" analysis for the bond amplitudes h(r) of an RVB wavefunction.

• Starting from any initial guess, h(r) evolves (in a manner dictated by the spin hamiltonian under consideration) toward a steady-state distribution representing an approximation to the true ground state.
• Unknown transition coefficients in the master equation are treated as variational parameters.
• We illustrate the method by applying it to the J1-J2 antiferromagnetic Heisenberg model.