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Semiconductor Physics, Quantum Electronics & Optoelectronics. 2006. V. 9, N 1. P. 088-092.
Noise induced re-entrant transitions in exciton bistable system
Yu. Fed’kovich Chernivtsi National University
2, Kotsyubinsky str., 58012 Chernivtsi, Ukraine
*E-mail: yurig@ukr.net
Abstract. We study a re-entrant transition in an exciton bistable system under the
influence of multiplicative noise. The re-entrant behavior is predictable for specific
values of the system control parameter when increasing the multiplicative noise intensity.
The system of Wannier-Mott excitons exhibits bistable ↔ monostable transitions in a
window of intermediate amplitudes of the multiplicative noise intensity demonstrating its
destructive and constructive role.
Keywords: exciton, resonance absorption, multiplicative noise, transition.
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