New way to compute excited states and thermodynamics: Monte Carlo hamiltonian

✍ Scribed by H. Kro¨ger; X.Q. Luo; K.J.M. Moriarty

• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 229 KB
• Volume: 119
• Category: Article
• ISSN: 0920-5632
• DOI: 10.1016/s0920-5632(03)01598-6

✦ Synopsis

We present a new way to compute thermodynamical observables on the lattice. We compute excited states and thermodynamical functions in the scalar model via the Monte Carlo Hamiltonian technique. We find agreement with standard Lagrangian lattice calculations, but observe lesser fluctuations in the results from the MC Hamiltonian.