Results 31 to 40 of about 117,966 (253)
Quantum theory of noncommutative fields [PDF]
Generalizing the noncommutative harmonic oscillator construction, we propose a new extension of quantum field theory based on the concept of "noncommutative fields". Our description permits to break the usual particle-antiparticle degeneracy at the dispersion relation level and introduces naturally an ultraviolet and an infrared cutoff ...
Carmona, José Manuel +3 more
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Nested Catalan tables and a recurrence relation in noncommutative quantum field theory [PDF]
Correlation functions in a dynamic quartic matrix model are obtained from the two-point function through a recurrence relation. This paper gives the explicit solution of the recurrence by mapping it bijectively to a two-fold nested combinatorial ...
J. D. Jong +2 more
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Renormalization of noncommutative quantum field theories [PDF]
35 pages, 2 figures, Minor changes in text, Conclusions unchanged, Version to be published in Phys.
de Queiroz, Amilcar R. +2 more
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EXISTENCE OF ASYMPTOTIC EXPANSIONS IN NONCOMMUTATIVE QUANTUM FIELD THEORIES [PDF]
Starting from the complete Mellin representation of Feynman amplitudes for noncommutative vulcanized scalar quantum field theory, introduced in a previous publication, we generalize to this theory the study of asymptotic behaviors under scaling of arbitrary subsets of external invariants of any Feynman amplitude.
C. A. Linhares +2 more
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Noncommutative time in quantum field theory [PDF]
25 pages, minor ...
Tureanu Anca, Salminen Tapio
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Twists of quantum groups and noncommutative field theory [PDF]
The role of quantum universal enveloping algebras of symmetries in constructing a noncommutative geometry of space-time and corresponding field theory is discussed. It is shown that in the framework of the twist theory of quantum groups, the noncommutative (super) space-time defined by coordinates with Heisenberg commutation relations, is (super ...
P. P. Kulish
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Classical Theorems in Noncommutative Quantum Field Theory [PDF]
Classical results of the axiomatic quantum field theory - Reeh and Schlieder's theorems, irreducibility of the set of field operators and generalized Haag's theorem are proven in SO(1,1) invariant quantum field theory, of which an important example is noncommutative quantum field theory.
Масуд Чайчиан +3 more
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Noncommutative quantum field theory and gravity [PDF]
Κωνσταντίνος Αναγνωστόπουλος +5 more
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Noncommutative deformations of Wightman quantum field theories [PDF]
Quantum field theories on noncommutative Minkowski space are studied in a model-independent setting by treating the noncommutativity as a deformation of quantum field theories on commutative space. Starting from an arbitrary Wightman theory, we consider special vacuum representations of its Weyl-Wigner deformed counterpart. In such representations, the
Grosse, Harald, Lechner, Gandalf
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Lorentz-breaking weighted measures as quantum field theory regulators
In this work we develop a re-formulation of quantum field theory through the more general weighted measures that the definition of quantum fields allows, and that violate explicitly the Lorentz symmetry; this approach provides finite answers for the long-
R. Cartas-Fuentevilla, A. Mendez-Ugalde
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