METHODS OF THEORETICAL PHYSICS

Two parameters scaling approach to Anderson localization of weekly interacting BEC

J. Xu, D.-W. Zhang, Z.-Y. Zhang

Laboratory of Quantum Information Technology, School of Physics and Telecommunication Engineering, South China Normal University

Abstract: We numerically study the Anderson localization of weekly interacting Bose–Einstein condensate in a one-dimensional disordered potential. We show that the interacting energy can not fully convert to the kinetic energy and two parameters are needed to describe such system completely, i.e., the density profile can be described with the sum of two exponential functions. This is a new attempt for precise description of systems with interplay of disorder and interaction.

Received: 18.01.2013

Language: English

DOI: 10.7868/S0370274X13040140

 English version: Journal of Experimental and Theoretical Physics Letters, 2013, 97:4, 239–244

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