Bose–Einstein condensation in one-dimensional systems with short-range correlated disordered on-site potentials

Wanwan Shi () and Peiqing Tong ()
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Wanwan Shi: Nanjing Normal University
Peiqing Tong: Nanjing Normal University

The European Physical Journal B: Condensed Matter and Complex Systems, 2022, vol. 95, issue 8, 1-8

Abstract: Abstract We study Bose–Einstein condensation (BEC) in one-dimensional tight-binding systems with two kinds of short-range correlated disordered on-site energy sequences (OSESs). One is the chaotic sequence generated by the modified Bernoulli map, the other is the random-dimer sequence. For these two kinds of short-range correlated systems, we consider binary and non-binary versions of sequences. It is found that BEC can occur in these systems at finite temperature and their transition temperatures ( $$T_{C}s$$ T C s ) increase with the potential strength w. Moreover, the $$T_{C}s$$ T C s of the systems with non-binary OSESs are greater than those of the binary ones. And the $$T_{C}$$ T C increases with the correlation parameter B ( $$0

Date: 2022
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DOI: 10.1140/epjb/s10051-022-00399-6

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