Self-squeezing states of magnons in an antiferromagnet
China Center of Advanced Science & Technology (World
Laboratory) P.O. Box 8730, Beijing 100080, PRC and Physics
Department, Beijing University of Science & Technology Beijing
Accepted: 29 March 2001
The self-squeezing states of magnons in an antiferromagnet are studied in this paper. These particular states allow a reduction in the quantum fluctuations of the spin components to below the zero-point quantum noise level of the coherent magnon states. The conditions of achieving magnon self-squeezing states are given by calculating the expectation values of the spin fluctuations, and a possible detection scheme based on a polarized neutron-scattering technique is suggested.
PACS: 75.10.-b – General theory and models of magnetic ordering / 75.30.Ds – Spin waves / 76.30.Da – Ions and impurities: general
© EDP Sciences, 2001