Results 51 to 60 of about 55,351 (274)
Two dimentional lattice vibrations from direct product representations of symmetry groups
International Journal of Mathematics and Mathematical Sciences, 1983 Arrangements of point masses and ideal harmonic springs are used to model two dimensional crystals. First, the Born cyclic condition is applied to a double chain composed of coupled linear lattices to obtain a cylindrical arrangement.
J. N. Boyd, P. N. Raychowdhury
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Anisotropic scaling of the two-dimensional Ising model II: surfaces and boundary fields
SciPost Physics, 2020 Based on the results published recently [SciPost Phys. 7, 026 (2019)], the influence of surfaces and boundary fields are calculated for the ferromagnetic anisotropic square lattice Ising model on finite lattices as well as in the finite-size scaling ...
Hendrik Hobrecht, Alfred Hucht
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Entropy, 2021 The magnetocaloric response of the mixed spin-1/2 and spin-S (S>1/2) Ising model on a decorated square lattice is thoroughly examined in presence of the transverse magnetic field within the generalized decoration-iteration transformation, which provides ...
Jozef Strečka, Katarína Karl’ová
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Critical temperatures of the Ising model on Sierpiñski fractal lattices [PDF]
EPJ Web of Conferences, 2020 We report our latest results of the spectra and critical temperatures of the partition function of the Ising model on deterministic Sierpiñski carpets in a wide range of fractal dimensions. Several examples of spectra are given.
Perreau Michel
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Shaping lattice through irrelevant perturbation: Ising model
Journal of High Energy Physics, 2019 The leading irrelevant perturbation, which controls the deviation of critical square lattice Ising model with periodic boundary conditions from its continuous CFT analog is identified.
Armen Poghosyan
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Fermi Surface Reconstruction without Symmetry Breaking
Physical Review X, 2020 We present a sign-problem-free quantum Monte Carlo study of a model that exhibits quantum phase transitions without symmetry breaking and associated changes in the size of the Fermi surface.
Snir Gazit +2 more
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Triad second renormalization group
Journal of High Energy Physics, 2022 We propose a second renormalization group (SRG) in the triad representation of tensor networks. The SRG method improves two parts of the triad tensor renormalization group, which are the decomposition of intermediate tensors and the preparation of ...
Daisuke Kadoh +2 more
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Quantum algorithms for classical lattice models [PDF]
, 2011 We give efficient quantum algorithms to estimate the partition function of (i) the six vertex model on a two-dimensional (2D) square lattice, (ii) the Ising model with magnetic fields on a planar graph, (iii) the Potts model on a quasi 2D square lattice,
Cuevas, G. De las +3 more
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Fully Frustrated Ising Model on a Square Lattice [PDF]
Progress of Theoretical Physics Supplement, 1986 We investigate a fully frustrated Ising model with four nearest-neighbor interaction constants on a square lattice. We obtain an exact form of the partition function by using a decimation transformation and a dual transformation. The partition function is then expressed as a product of two partition functions each of which is the one of the Ising model
openaire +2 more sources
Fundamental limits on low-temperature quantum thermometry with finite resolution [PDF]
Quantum, 2019 While the ability to measure low temperatures accurately in quantum systems is important in a wide range of experiments, the possibilities and the fundamental limits of quantum thermometry are not yet fully understood theoretically.
Patrick P. Potts +2 more
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