Quantum Projection in an Ising Spin Liquid
Other Condensed Matter
2007-08-02 v2 Disordered Systems and Neural Networks
Abstract
A transverse magnetic field is used to scan the diagonal and off-diagonal susceptibility of the uniaxial quantum magnet, . Clusters of strongly-coupled spins act as the primary source for the response functions, which result from a field-induced quantum projection of the system into a classically forbidden (meaning non-Ising) regime. Calculations based on spin pairs reproduce only some features of the data and fail to predict the measured off-diagonal response, providing evidence of a multi-spin collective state.
Cite
@article{arxiv.0706.4480,
title = {Quantum Projection in an Ising Spin Liquid},
author = {D. M. Silevitch and C. M. S. Gannarelli and A. J. Fisher and G. Aeppli and T. F. Rosenbaum},
journal= {arXiv preprint arXiv:0706.4480},
year = {2007}
}