Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Valverde, J. S."'
Publikováno v:
Physica A388:1419-1430,2009; Erratum-ibid.388:3282,2009
The paper discusses the transformation of decorated Ising models into an effective \textit{undecorated} spin models, using the most general Hamiltonian for interacting Ising models including a long range and high order interactions. The inverse of a
Externí odkaz:
http://arxiv.org/abs/0809.4710
We study a two dimensional XXZ-Ising on square-hexagon (4-6) lattice with spin-1/2. The phase diagram of the ground state energy is discussed, shown two different ferrimagnetic states and two type of antiferromagnetic states, beside of a ferromagneti
Externí odkaz:
http://arxiv.org/abs/0809.2015
The asymmetric tetrahedron is composed by all edges of tetrahedron represented by Ising interaction except one, which has a Heisenberg type interaction. This asymmetric tetrahedron is arranged connecting a vertex which edges are only Ising type inter
Externí odkaz:
http://arxiv.org/abs/0807.4796
Autor:
Valverde, J. S., Pazetti, M.
Publikováno v:
JHEP0608:037,2006
We propose a SUSY variant of the action for a massless spinning particles via the inclusion of twistor variables. The action is constructed to be invariant under SUSY transformations and $\tau$-reparametrizations even when an interaction field is inc
Externí odkaz:
http://arxiv.org/abs/hep-th/0602177
Publikováno v:
PhysicaA370:441-448,2006
In this work we study the electromagnetic field at Finite Temperature via the massless DKP formalism. The constraint analysis is performed and the partition function for the theory is constructed and computed. When it is specialized to the spin 1 sec
Externí odkaz:
http://arxiv.org/abs/hep-th/0506258
Publikováno v:
IL NUOVO CIMENTO B 124, 485 (2009)
We give an action for the massless spinning particle in pseudoclassical mechanics by using grassmann variables. The constructed action is invariant under $\tau $-reparametrizations, local SUSY and O(N) transformations. After quantization, for the spe
Externí odkaz:
http://arxiv.org/abs/hep-th/0506193
Publikováno v:
Theor.Math.Phys. 140 (2004) 931-938; Teor.Mat.Fiz. 140 (2004) 44-52
We prove the equivalence of many-photon Green functions in statistical quantum field Duffin-Kemmer-Petiau (DKP) and Klein-Gordon-Fock (KGF) theories using functional path integral formalism for partition functional in statistical quantum (finite temp
Externí odkaz:
http://arxiv.org/abs/hep-th/0309078
Publikováno v:
Phys.Lett. A316 (2003) 33-43
The thermodynamical partition function of the Duffin-Kemmer-Petiau theory is evaluated using the imaginary-time formalism of quantum field theory at finite temperature and path integral methods. The DKP partition function displays two features: (i) f
Externí odkaz:
http://arxiv.org/abs/hep-th/0309007
Publikováno v:
Int.J.Mod.Phys. A17 (2002) 205-228
In this paper we consider the scalar sector of Duffin-Kemmer-Petiau theory in the framework of Epstein-Glaser causal method. We calculate the lowest order distributions for Compton scattering, vacuum polarization, self-energy and vertex corrections.
Externí odkaz:
http://arxiv.org/abs/hep-th/0008098
Publikováno v:
Phys.Lett. A268 (2000) 165-173
Two problems relative to the electromagnetic coupling of Duffin-Kemmer-Petiau (DKP) theory are discussed: the presence of an anomalous term in the Hamiltonian form of the theory and the apparent difference between the Interaction terms in DKP and Kle
Externí odkaz:
http://arxiv.org/abs/hep-th/9911254