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Title: New approach to spectrum calculations in lattice Hamiltonian field theories: Introduction and application to lambdaphi/sup 4/ theory in 1+1 dimensions

Journal Article · · Phys. Rev. D; (United States)

We introduce a finite-lattice technique for calculating the spectrum of fluctuating Bose theories in the continuum limit. The method gives the continuum spectrum to an estimated approx.1% accuracy in 1+1 dimensions using available computer memory. The spectrum of lambdaphi/sup 4/ theory in 1+1 dimensions is studied as a trial application; we find no bound states in the spectrum between m and 2m.

Research Organization:
Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 OQX, England
OSTI ID:
5540068
Journal Information:
Phys. Rev. D; (United States), Vol. 28:8
Country of Publication:
United States
Language:
English