STUDYING THE SQUEEZING PROPERTIES OF EXCITONS IN THE EVEN AND ODD COHERENT STATES BY THE MECHANISM OF ADDING POLARITON IN SEMICONDUCTOR

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ĐẶNG HỮU ĐỊNH
TRẦN MINH PHÚC

Abstract

This paper studies the exciton squeezing properties in the even and odd coherent states by the mechanism of adding polariton. The process of investigating the squeezing effect is based on the squeezed exciton mechanism that does not require a high excitation level. This mechanism is based on the interaction between exciton, photon standards and a two-photon-level impurity atom in a straight bandgap semiconductor. The important point is that the atom must be in an excited state initially, so that when the atom moves from the excited state to the ground state, more photons will be emitted into the interacting system and the exciton squeezing will be stronger. The exciton squeezing more strongly the greater the initial coherence of the photon-exciton. In both even and odd coherent states, it can be seen that the orthogonal amplitude squeezed coefficient depends not only on parameters such as: the ratio of the photon's energy to the exciton's energy, coherence amplitude, but also depends on the number of photons.

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Basic Science, Culture, Art