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Title: Massless Lattice phi/sub 4//sup 4/ theory: A nonperturbative control of a renormalizable model

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

We describe a rigorous argument establishing infrared asymptotic freedom and other related properties (e.g., scaling with logarithmic corrections) of the weakly coupled massless lattice phi/sup 4/ model in four Euclidean dimensions. Our method combines the block-spin renormalization-group analysis with the technique of convergent high-temperature expansions. It should also extend to the ultraviolet asymptotically free models such as the negative-coupling continuum phi/sub 4//sup 4/ theory.

Research Organization:
Institut des Hautes Etudes Scientifiques, F-91440 Bures-sur-Yvette, France
OSTI ID:
5986243
Journal Information:
Phys. Rev. Lett.; (United States), Vol. 54:2
Country of Publication:
United States
Language:
English