Phase diagram of a bosonic ladder with two coupled chains

2008/02/04 by Meetu Sethi Luthra, Luthra, Meetu Sethi, Tapan Mishra +5
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Other Condensed Matter (cond-mat.other) #Quantum many-body systems #Quantum, superfluid, helium dynamics #Statistical Mechanics (cond-mat.stat-mech) #cond-mat.other #cond-mat.stat-mech

paper · pdf · doi:10.48550/arxiv.0802.0396

6 pages, 10 figures

arxiv created 2008/02/04 · openalex publication_date 2008/02/04 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

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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