We theoretically investigate the evolution of biexcitons from a coherent into a squeezed state in a fully quantum system described by a trilinear Hamiltonian allowing the transition 'photons + excitons ⇆ biexcitons'. Curious dependences of the direction and degree of biexciton squeezing on the initial states of photons and excitons are obtained. The theoretical results are well reproduced by numerical calculations.

Tinh V., Nha D.H., An N.B.

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Từ khóa : analytic method; article; electromagnetic field; excitation contraction coupling; optics; oscillation; quantum mechanics; Raman spectrometry