We study the single-particle density of states of a one-dimensional speckle potential, which is correlated and non-Gaussian. We consider both the repulsive and the attractive cases. The system is controlled by a single dimensionless parameter determined by the mass of the particle, the correlation length, and the average intensity of the field. Depending on the value of this parameter, the system exhibits different regimes, characterized by the localization properties of the eigenfunctions.We calculate the corresponding density of states using the statistical properties of the speckle potential. We find good agreement with the results of numerical simulations. © 2010 The American Physical Society.
Density of states in an optical speckle potential / Falco, G. M.; Fedorenko, A. A.; Giacomelli, J.; Modugno, M.. - In: PHYSICAL REVIEW A. - ISSN 1050-2947. - 82:5(2010). [10.1103/PhysRevA.82.053405]
Density of states in an optical speckle potential
Giacomelli J.Penultimo
;
2010
Abstract
We study the single-particle density of states of a one-dimensional speckle potential, which is correlated and non-Gaussian. We consider both the repulsive and the attractive cases. The system is controlled by a single dimensionless parameter determined by the mass of the particle, the correlation length, and the average intensity of the field. Depending on the value of this parameter, the system exhibits different regimes, characterized by the localization properties of the eigenfunctions.We calculate the corresponding density of states using the statistical properties of the speckle potential. We find good agreement with the results of numerical simulations. © 2010 The American Physical Society.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
