Applying the relativistic quantization condition to a three-particle   bound state in a periodic box
  Using our recently developed relativistic three-particle quantization condition, we study the finite-volume energy shift of a spin-zero three-particle bound state. We reproduce the result obtained using non-relativistic quantum mechanics by Meissner, Rios and Rusetsky, and generalize the result to a moving frame. 
Maxwell T. Hansen, Stephen R. Sharpe
hep-lat nucl-th