BIEXCITON kth POWER AMPLITUDE SQUEEZING DUE TO OPTICAL EXCITON–BIEXCITON CONVERSION

Abstract

We extend a previous paper on biexciton normal squeezing to the case of kth power amplitude squeezing in a quantum interacting system of photons, excitons and biexcitons. We find that the kth power amplitude squeezing depends on the characteristics of the initial coherent biexciton while the normal squeezing does not. Both the direction of maximal squeezing and the squeezing degree are derived as explicit functions of k. Especially, the squeezing degree always decreases with increasing k regardless of the initial conditions. All these properties are examined numerically. PACS number(s): 42.50.Dv, 71.35.-y.

Interaction of light and semiconductor can generate quantum states required for solid state quantum computing: Entangled, steered and other nonclassical states

“…For example, the existence of squeezed excitons and/or squeezed radiation field in such systems has been reported in the nineties [38][39][40]42]. Almost along the same line, An and Tinh reported that the coupling of a coherent excitonphoton system may lead to quadrature-amplitude and number-phase squeezed excitons [43]; they also reported lower-order [44] and higher-order [41] biexciton squeezing for optical exciton-biexciton conversion; in fact, higherorder squeezing of photon was also reported in Ref. [45].…”

“…The possibilities of generation of nonclassical states through the light-semiconductor interaction have already been investigated in Refs. [34][35][36][37][38][39][40][41]. These investigations were partially motivated by the easy availability and a few more advantages of the semiconductor over the usual nonlinear crystals.…”