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Journal Articles Physical Review A : Atomic, molecular, and optical physics Year : 2010

Quantum inelastic collisions between paraexcitons in Cu2O

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Abstract

A density-dependent loss of optically inactive paraexcitons is measured as a function of temperature over a wide range of densities in Cu2O. At low temperatures, the two-body inelastic collision rate stays at a constant and the extracted collision cross-section diverges. A loss channel cannot be explained classically but is expected in a quantum-mechanical regime. We discuss the repercussion of this loss on the feasibility of achieving Bose-Einstein condensation of paraexcitons in Cu2O.

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hal-00506491 , version 1 (27-07-2010)

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K. Yoshioka, Takuro Ideguchi, André Mysyrowicz, Makoto Kuwata-Gonokami. Quantum inelastic collisions between paraexcitons in Cu2O. Physical Review A : Atomic, molecular, and optical physics, 2010, 82 (4), pp.041201(R). ⟨10.1103/PhysRevB.82.041201⟩. ⟨hal-00506491⟩
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