Magnetic phases of spin-1 lattice gases with random interactions
arXiv:1702.01765 · doi:10.1103/PhysRevB.95.235128
Abstract
A spin-1 atomic gas in an optical lattice, in the unit-filling Mott Insulator (MI) phase and in the presence of disordered spin-dependent interaction, is considered. In this regime, at zero temperature, the system is well described by a disordered rotationally-invariant spin-1 bilinear-biquadratic model. We study, via the density matrix renormalization group algorithm, a bounded disorder model such that the spin interactions can be locally either ferromagnetic or antiferromagnetic. Random interactions induce the appearance of a disordered ferromagnetic phase characterized by a non-vanishing value of spin-glass order parameter across the boundary between a ferromagnetic phase and a dimer phase exhibiting random singlet order. The study of the distribution of the block entanglement entropy reveals that in this region there is no random singlet order.
9 pages, 8 figures, published version
References in corpus (21)
- Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond
- Exploring the many-body localization transition in two dimensions
- Tuning the scattering length with an optically induced Feshbach resonance
- Implementation of Spin Hamiltonians in Optical Lattices
- Spin nematic correlations in bilinear-biquadratic S=1 spin chains
- Ultra-precise holographic beam shaping for microscopic quantum control
- Scaling of Entanglement Entropy in the Random Singlet Phase
- Quantum Correlations and Coherence in Spin-1 Heisenberg Chains
- Ultracold Bose Gases in 1D Disorder: From Lifshits Glass to Bose-Einstein Condensate
- Phase diagram of spin-1 bosons on one-dimensional lattices
- Many-body localization due to random interactions
- Bose-glass phases of ultracold atoms due to cavity backaction
- Three-dimensional strong localization of matter waves by scattering from atoms in a lattice with a confinement-induced resonance
- Quantum State Transfer in Spin-1 Chains
- Disordered spinor Bose-Hubbard model
- Correlation function of weakly interacting bosons in a disordered lattice
- Increasing entanglement through engineered disorder in the random Ising chain
- Probing magnetic order in ultracold lattice gases
- Mean-Field Analysis of Spinor Bosons in Optical Superlattices
- Probability distribution of the entanglement across a cut at an infinite-randomness fixed point
- Simulating frustrated magnetism with spinor Bose gases
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- Schmidt gap in random spin chains
- Quantum phases of a spin-1 ultracold Bose gas with three body interactions
- Effects of an attractive three body interaction on a spin-1 Bose Hubbard model