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VOLUME 54 (1991) | ISSUE 10 | PAGE 566
Quantum fluctuations do not destroy an optical soliton
The behavior of an optical soliton in a dispersive nonlinear fiber is discussed. The evolution of the fourth-order correlation function is analyzed. This function is independent of the time. The result is formulated as a theorem regarding the correlation function, which also applies to other quantum systems. The fact that this correlation function does not change proves that a soliton is stable. Physical consequences of this stability are discussed.