Journal
PHYSICAL REVIEW B
Volume 106, Issue 15, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.106.155411
Keywords
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Funding
- ERC [758329]
- MIUR Programme FARE (MEPH)
- European Union [817482]
- Simons Foundation [284558FY19]
- Swiss National Science Foundation
- NCCR QSIT [51NF40-185902]
- Shota Rustaveli National Science Foundation of Georgia, SRNSF [FR-19-11872]
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Dressed Rydberg atoms in optical lattices offer a promising platform for quantum simulation of intriguing phenomena in strongly interacting systems. This study investigates the phase diagram of hard-core bosons in a triangular ladder, revealing transitions between different phases.
Dressed Rydberg atoms in optical lattices are a promising platform for the quantum simulation of intriguing phenomena emerging in strongly interacting systems. Relevant to such a setup, we investigate the phase diagram of hard-core bosons in a triangular ladder with next-to-nearest-neighbor interaction along each leg and nearest-neighbor interactions without hopping between the legs. For weak interactions, Abelian bosonization predicts a spin density wave and a fully gapless Luttinger liquid phase. Such liquids transition to a spin-locked cluster Luttinger liquid at strong interactions along each leg, as predicted by cluster bosonization. Interestingly, the competition with the zigzag interaction generates a charge density wave, a polarized holonic phase, and a crystalline phase at the filling 2/5, that we address via a semiclassical perturbative approach. Exact diagonaliza-tion and density matrix renormalization group simulations confirm the predictions and further characterize the phases and their transitions.
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