Results 31 to 40 of about 113,306 (118)

Spin-spin Correlation in Some Excited States of Transverse Ising Model

open access: yes, 2007
We consider the transverse Ising model in one dimension with nearest-neighbour interaction and calculate exactly the longitudinal spin-spin correlation for a class of excited states.
Anjan Kumar Chandra   +13 more
core   +1 more source

Fusion Operators in the Generalized $\tau^{(2)}$-model and Root-of-unity Symmetry of the XXZ Spin Chain of Higher Spin

open access: yes, 2007
We construct the fusion operators in the generalized $\tau^{(2)}$-model using the fused $L$-operators, and verify the fusion relations with the truncation identity. The algebraic Bethe ansatz discussion is conducted on two special classes of $\tau^{(2)}$
Albertini G   +25 more
core   +2 more sources

Dangerous Voices: On Written and Spoken Discourse in Plato’s Protagoras [PDF]

open access: yes, 2017
Plato’s Protagoras contains, among other things, three short but puzzling remarks on the media of philosophy. First, at 328e5–329b1, Plato makes Socrates worry that long speeches, just like books, are deceptive, because they operate ...
Olof, Pettersson
core  

Construction of some missing eigenvectors of the XYZ spin chain at the discrete coupling constants and the exponentially large spectral degeneracy of the transfer matrix

open access: yes, 2002
We discuss an algebraic method for constructing eigenvectors of the transfer matrix of the eight vertex model at the discrete coupling parameters. We consider the algebraic Bethe ansatz of the elliptic quantum group $E_{\tau, \eta}(sl_2)$ for the case ...
Affleck I   +22 more
core   +1 more source

The achievable performance of convex demixing [PDF]

open access: yes, 2013
Demixing is the problem of identifying multiple structured signals from a superimposed, undersampled, and noisy observation. This work analyzes a general framework, based on convex optimization, for solving demixing problems. When the constituent signals
McCoy, Michael B., Tropp, Joel A.
core   +2 more sources

Identities in the Superintegrable Chiral Potts Model

open access: yes, 2010
We present proofs for a number of identities that are needed to study the superintegrable chiral Potts model in the $Q\ne0$ sector.Comment: LaTeX 2E document, using iopart.cls with iopams packages. 11 pages, uses eufb10 and eurm10 fonts. Typeset twice!
Albertini G   +15 more
core   +1 more source

Differentiation of Planetesimals and the Thermal Consequences of Melt Migration

open access: yes, 2011
We model the heating of a primordial planetesimal by decay of the short-lived radionuclides Al-26 and Fe-60 to determine (i) the timescale on which melting will occur; (ii) the minimum size of a body that will produce silicate melt and differentiate ...
Gaidos, Eric, Moskovitz, Nicholas
core   +1 more source

The Chiral Potts Models Revisited

open access: yes, 1994
In honor of Onsager's ninetieth birthday, we like to review some exact results obtained so far in the chiral Potts models and to translate these results into language more transparent to physicists, so that experts in Monte Carlo calculations, high and ...
A. E. Kennelly   +63 more
core   +2 more sources

Geometric Entanglement and Quantum Phase Transition in Generalized Cluster-XY models

open access: yes, 2019
In this work, we investigate quantum phase transition (QPT) in a generic family of spin chains using the ground-state energy, the energy gap, and the geometric measure of entanglement (GE). In many of prior works, GE per site was used.
Deger, Aydin, Wei, Tzu-Chieh
core   +1 more source

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