Phase diagram of a bosonic ladder with two coupled chains

Meetu Sethi Luthra; Tapan Mishra; Ramesh V. Pai; B. P. Das

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arXiv · 0802.0396

Phase diagram of a bosonic ladder with two coupled chains

Meetu Sethi Luthra·Tapan Mishra·Ramesh V. Pai·B. P. Das

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Abstract

We study a bosonic ladder with two coupled chains using the finite size density matrix renormalisation group method. We show that in a commensurate bosonic ladder the critical on-site interaction ($U_C$) for the superfluid to Mott insulator transition becomes larger as the inter-chain hopping ($t_\bot$)increases. We analyze this quantum phase transition and obtain the phase diagram in the $t_\bot -U$ plane.

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Meetu Sethi Luthra, Tapan Mishra, Ramesh V. Pai, B. P. Das. 2008-02-04. Phase diagram of a bosonic ladder with two coupled chains. https://arxiv.org/abs/0802.0396

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