HJ Mikeska, AK Kolezhuk - Quantum magnetism, 2004 - Springer
We present an up-to-date survey of theoretical concepts and results in the field of one- dimensional magnetism and of their relevance to experiments and real materials. Main …
R Coldea, DA Tennant, Z Tylczynski - Physical Review B, 2003 - APS
The magnetic excitations of the quasi-2D spin-1/2 frustrated Heisenberg antiferromagnet Cs 2 CuCl 4 are explored throughout the 2D Brillouin zone using high-resolution time-of-flight …
P Laurell, A Scheie, CJ Mukherjee, MM Koza… - Physical Review Letters, 2021 - APS
The lack of methods to experimentally detect and quantify entanglement in quantum matter impedes our ability to identify materials hosting highly entangled phases, such as quantum …
We study the entanglement of thermal and ground states in the Heisenberg XX qubit rings with a magnetic field. A general result is found that for even-number rings, pairwise …
J Sirker, RG Pereira, I Affleck - Physical Review B—Condensed Matter and …, 2011 - APS
In integrable one-dimensional quantum systems an infinite set of local conserved quantities exists which can prevent a current from decaying completely. For cases like the spin current …
R Werner, A Klümper - Physical Review B, 2001 - APS
We calculate lineshapes of correlation functions by use of complete diagonalization data of finite chains and analytical implications from conformal-field theory, density of states, and …
T Prosen - Journal of Physics A: Mathematical and Theoretical, 2007 - iopscience.iop.org
The problem of characterizing the complexity of quantum dynamics—in particular of locally interacting chains of quantum particles—will be reviewed and discussed from several …
The spin pair-correlation function of finite bipartite antiferromagnetic Heisenberg quantum spin rings was studied numerically by means of exact diagonalization techniques. For large …
R Steinigeweg, W Brenig - Physical Review Letters, 2011 - APS
We investigate the role of momentum for the transport of magnetization in the spin-1/2 Heisenberg chain above the isotropic point at finite temperature and momentum. Using …