Dear Elliot,
It is possible to get the gap to the lowest lying triplet state from susceptibilities or gap calculations, but in general Monte Carlo simulations give thermodynamic and not spectral information.
Matthias
On 21 Dec 2011, at 18:47, Elliot Snow-Kropla wrote:
Dear All, I am trying to use the QMC loop code to get the energies for excited states of my Hamiltonians. Getting the ground state energy is built in; is there an easy way for me to pull out the first excited energy?
Thanks, -Elliot Snow-Kropla