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Publikováno v:
Nuclear Physics B, Vol 940, Iss, Pp 214-238 (2019)
Nuclear Physics
Nuclear Physics
Three-quark potentials are studied in great details in the three-dimensional $SU(3)$ pure gauge theory at finite temperature, for the cases of static sources in the fundamental and adjoint representations. For this purpose, the corresponding Polyakov
Autor:
Kazuhiko Minami
Publikováno v:
Nuclear Physics B, Vol 939, Iss, Pp 465-484 (2019)
Nuclear Physics
Nuclear Physics
The honeycomb lattice Kitaev model H_{K} with two kinds of Wen-Toric-code four-body interactions H_{WT} is investigated exactly using a new fermionization method, and the ground state phase diagram is obtained. Six kinds of three-body interactions ar
Autor:
Árpád Hegedűs
Publikováno v:
Nuclear Physics B, Vol 933, Iss, Pp 349-383 (2018)
Nuclear Physics
Nuclear Physics
The 6-vertex model with appropriately chosen alternating inhomogeneities gives the so-called light-cone lattice regularization of the sine-Gordon (Massive-Thirring) model. In this integrable lattice model we consider pure hole states above the antife
Publikováno v:
Nuclear Physics B, Vol 960, Iss, Pp 115165-(2020)
We investigate the dynamic critical behaviour of a relativistic scalar field theory with $Z_2$ symmetry by calculating spectral functions of the order parameter at zero and non-vanishing momenta from first-principles classical-statistical lattice sim
Autor:
Miloslav Znojil, Denis Borisov
Publikováno v:
Nuclear Physics B, Vol 957, Iss, Pp 115064-(2020)
Nuclear Physics
Nuclear Physics
Quantum phase transitions in certain non-Hermitian systems controlled by non-tridiagonal Hamiltonian matrices are found anomalous. In contrast to the known models with tridiagonal-matrix structure in which the geometric multiplicity of the completely
Autor:
Kun Hao, Tao Yang, Junpeng Cao, Guang-Liang Li, Zhirong Xin, Pei Sun, Wen-Li Yang, Yi Qiao, Kangjie Shi, Fakai Wen
Publikováno v:
Nuclear Physics B, Vol 931, Iss C, Pp 342-358 (2018)
Nuclear Physics
Nuclear Physics
By combining the algebraic Bethe ansatz and the off-diagonal Bethe ansatz, we investigate the trigonometric SU(3) model with generic open boundaries. The eigenvalues of the transfer matrix are given in terms of an inhomogeneous T-Q relation, and the
Autor:
Holger Frahm, Márcio José Martins
Publikováno v:
Nuclear Physics B, Vol 930, Iss, Pp 545-562 (2018)
Nuclear Physics B 930 (2018)
Nuclear Physics
Nuclear Physics B 930 (2018)
Nuclear Physics
In this paper we investigate the finite-size properties of the spectrum of quantum spin chains with local spins taken to be the fundamental vector representation of the $OSp(n|2m)$ superalgebra.
22 pages, 5 figures
22 pages, 5 figures
Autor:
Christof Wetterich
Publikováno v:
Nuclear Physics B, Vol 927, Iss, Pp 35-96 (2018)
Nuclear Physics B
Nuclear Physics B
For "static memory materials" the bulk properties depend on boundary conditions. Such materials can be realized by classical statistical systems which admit no unique equilibrium state. We describe the propagation of information from the boundary to
Autor:
T.S. Tavares, G.A.P. Ribeiro
Publikováno v:
Nuclear Physics B, Vol 921, Iss C, Pp 357-374 (2017)
Nuclear Physics B
Nuclear Physics B
We study a quantum spin chain invariant by the superalgebra $osp(1|2)$. We derived non-linear integral equations for the row-to-row transfer matrix eigenvalue in order to analyze its finite size scaling behaviour and we determined its central charge.
Publikováno v:
Nuclear Physics B, Vol 921, Iss C, Pp 769-795 (2017)
Nuclear Physics B
Nuclear Physics B
The Wilson-Fisher fixed point with $O(N)$ universality in three dimensions is studied using the renormalisation group. It is shown how a combination of analytical and numerical techniques determine global fixed point solutions to leading order in the