Operator renormalization group

Journal Article · Tue Nov 15 04:00:00 EST 1988 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.38.3238· OSTI ID:6935746

Horn, D; Langeveld, W G.J.; Quinn, H R; Weinstein, M

We introduce a novel operator renormalization-group method. This is a new and more powerful variant of the t expansion combining that method with the real-space renormalization-group approach. The aim is to extract infinite-volume physics at t..-->..infinity from calculations of only a few powers of t. Good results are obtained for the (1+1)-dimensional Ising model. The method readily generalizes to higher-dimensional spin theories and to a gauge-invariant treatment of gauge theories. These theories will require greater computational power.

• Research Organization: School of Physics and Astronomy, Tel-Aviv University, Tel-Aviv 69978, Israel
• OSTI ID: 6935746
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 38:10; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645400* -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR MOMENTUM
CRYSTAL MODELS
EIGENSTATES
FIELD THEORIES
FUNCTIONS
GAUGE INVARIANCE
HAMILTONIANS
INVARIANCE PRINCIPLES
ISING MODEL
LATTICE FIELD THEORY
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
MONTE CARLO METHOD
PADE APPROXIMATION
PARTICLE PROPERTIES
QUANTUM FIELD THEORY
QUANTUM OPERATORS
RENORMALIZATION
SPIN
TWO-DIMENSIONAL CALCULATIONS
VARIATIONAL METHODS
WAVE FUNCTIONS