Commensurate supersolids and re-entrant transitions in an extended Bose-Hubbard ladder
- URL: http://arxiv.org/abs/2407.20107v2
- Date: Wed, 7 Aug 2024 04:59:35 GMT
- Title: Commensurate supersolids and re-entrant transitions in an extended Bose-Hubbard ladder
- Authors: Ashwath N Madhusudan, Gopal Chandra Santra, Inderpreet Kaur, Weibin Li, Rejish Nath,
- Abstract summary: We investigate the ground state phases of an extended Bose-Hubbard ladder of unit filling via the density-matrix-renormalization-group method.
We show that the string order characterizing the Haldane phase vanishes for a finite inter-chain hopping amplitude, however small it is.
- Score: 0.3935169471772226
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We investigate the ground state phases of an extended Bose-Hubbard ladder of unit filling via the density-matrix-renormalization-group method and, in particular, the effect of rung-hoppings. In contrast to a single-chain, a commensurate supersolid emerges, and based on the Luttinger parameter, we classify them into two types. The latter leads to a reentrant gapless behavior as the onsite interaction is increased while keeping all other parameters intact. A reentrant gapped transition is also found as a function of nearest-neighbor interactions. Further, we show that the string order characterizing the Haldane phase vanishes for a finite inter-chain hopping amplitude, however small it is. Finally, we propose two experimental platforms to observe our findings, using either dipolar atoms or polar molecules and Rydberg admixed atoms.
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