Excitation Spectrum of a 1D AF Heisenberg Chain.

[hcut]

Hi

I was wondering how we can calculate the Excitation Spectrum of a 1D AF Heisenberg Chain.

Can we calculate the excitation spectrum of any 1D spin chain model ?

Thanks

[mducle]

@hcut Have a look at tutorial 2.

Note that with linear spin wave theory you can only calculate the magnon spectra if there is magnetic ordering - e.g. you cannot calculate the spinon spectrum of a 1D chain with linear spin wave theory.

[hcut]

Thanks for answering,

Could you please tell how can I calculate the spectra of 1D chains computationally (method/package) ?