Two-particle four-point correlations in dynamically disordered tight-binding networks. (21st December 2017)

• Record Type: Journal Article
• Authors: Perez-Leija, Armando; Leon-Montiel, Roberto de J; Sperling, Jan; Moya-Cessa, Hector; Szameit, Alexander; Busch, Kurt
• Is Part Of: Journal of physics. Volume 51:Number 2(2018:Jan. 15)
• Publication Date: 2017-12-21
• Subjects: quantum correlations in disordered systems -- lattices -- multiparticle systems; Atoms -- Periodicals; Molecules -- Periodicals; Optics -- Periodicals; Nuclear physics -- Periodicals; 539.6
• DOI: 10.1088/1361-6455/aa9aa1
• Languages: English
• ISSNs: 0953-4075

Abstract

Abstract: We use the concept of two-particle probability amplitude to derive the stochastic evolution equation for two-particle four-point correlations in tight-binding networks affected by diagonal dynamic disorder. It is predicted that in the presence of dynamic disorder, the average spatial wavefunction of indistinguishable particle pairs delocalizes and populates all network sites including those which are weakly coupled in the absence of disorder. Interestingly, our findings reveal that correlation elements accounting for particle indistinguishability are immune to the impact of dynamic disorder.