Modulated magnon squeezing states in an antiferromagnet

The elementary excitations of the spin waves, magnons, can generate the squeezing states in an antiferromagnet, which allow a reduction in the quantum fluctuation of the spin components to below the zero-point quantum noise level of the vacuum states. Here we calculate the spin-component fluctuation of an antiferromagnet in a laser field, and discuss how to modulate the squeezing states by the external electric field. [Copyright &y& Elsevier]