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Comment on “Phase Diagram of a Disordered Boson Hubbard Model in Two Dimensions”
Superfluid mott insulation bose glass monte carlo simulation
2014/12/20
In a recent Letter [1] (see also [2]) the authors presented numerical evidence supporting an idea of a direct transition between the superfluid (SF) and Mott insulating (MI) phases in the disordered B...
Commensurate Two-Component Bosons in an Optical Lattice: Ground State Phase Diagram
Bosons optical lattice superfluid quantum systems and quantum
2014/12/20
Two sorts of bosons in an optical lattice at commensurate filling factors can form five stable superfluid and insulating ground states with rich and nontrivial phase diagram. The structure of the grou...
Phase diagram and thermodynamics of the three-dimensional Bose-Hubbard model
Quantum monte carlo simulation 3 d space
2014/12/20
We report results of quantum Monte Carlo simulations of the Bose-Hubbard model in three dimensions. Critical parameters for the superfluid-to-Mott-insulator transition are determined with significantl...
Phase diagram of an anisotropic bosonic t-J model
Quantum monte carlo simulation of low temperature isotopic mixture model
2014/12/19
We have studied by quantum Monte Carlo simulations the low temperature phase diagram of a mixture of isotopic, hard core bosons, described by the t-Jz-J⊥ model, with J⊥=αJz. The coexistence of superfl...
Phase diagram of the disordered Bose-Hubbard model
Disordered phase diagram the three dimensional Bose - Hubbard model inclusions superfluids
2014/12/19
We establish the phase diagram of the disordered three-dimensional Bose-Hubbard model at unity filling which has been controversial for many years. The theorem of inclusions, proven by Pollet et al. [...
Topological multicritical point in the phase diagram of the toric code model and three-dimensional lattice gauge Higgs model
Magnetic field the three dimensional Z2 higgs model fiction spatial direction monte carlo simulation model
2014/12/19
We construct a mapping between the two-dimensional toric code model in external magnetic fields, hz and hx, and the three-dimensional classical Ising system with plaquette interactions, which is equiv...
Unconventional magnetic phase diagram of cuprate superconductor La2-xSrxCuO4 at quantum critical point x = 1/9
Unconventional magnetic phase diagram cuprate superconductor La2-xSrxCuO4 quantum critical point
2012/2/27
We propose a new magnetic phase diagram of La2-xSrxCuO4 around a quantum critical point x = 1/9 based on field-cooled magnetization measurements and critical fittings. A new phase boundary Tm2(H) is d...
We study the QCD phase diagram at finite temperature and baryon chemical potential by relating the behavior of the light-quark condensate to the threshold energy for the onset of perturbative QCD.
Advancements in the synthesis of faceted nanoparticles and colloids have spurred interest in the phase behavior of polyhedral shapes. Regular tetrahedra have attracted particular attention because the...
Phase diagram of Rydberg atoms with repulsive van der Waals interaction
Phase diagram of Rydberg atoms
2011/9/14
We report a quantum Monte Carlo calculation of the phase diagram of bosons interacting with a repulsive inverse sixth power pair potential, a model for assemblies of Rydberg atoms in the local van der...
Phase diagram and critical endpoint for strongly-interacting quarks
Phase diagram critical endpoint strongly-interacting quarks
2011/1/7
We introduce a method based on the chiral susceptibility, which enables one to draw a phase diagram in the chemical-potential/temperature plane for strongly-interacting quarks whose interactions are d...
Constraints for the QCD phase diagram from imaginary chemical potential
the QCD phase diagram imaginary chemical potential
2011/1/6
We present unambiguous evidence from lattice simulations of N_f=3 QCD for two tricritical points in the (T,m) phase diagram at fixed imaginary \mu/T=i\pi/3 mod. 2\pi/3, one in the light and one in the...
Phase diagram of charge order in La1.8-xEu0.2SrxCuO4 from resonant soft x-ray diffraction
Phase diagram of charge order resonant soft x-ray diffraction
2010/11/25
Resonant soft x-ray scattering experiments with photon energies near the O K and the Cu L3
edge on the system La1.8−xEu0.2SrxCuO4 for 0.1 x 0.15 are presented. A phase diagram
for stripe-l...
Magnetic phase diagram of spatially anisotropic, frustrated spin-1/2 Heisenberg antiferromagnet on a stacked square lattice
Magnetic phase diagram of spatially anisotropic stacked square lattice
2010/11/17
Magnetic phase diagram of a spatially anisotropic, frustrated spin- 12 Heisenberg antiferromagnet on a stacked square lattice is investigated using second-order spin-wave expansion.
Nonequilibrium Phase Diagram of a Driven-Dissipative Many-Body System
Nonequilibrium Phase Diagram Driven-Dissipative Many-Body System
2010/11/22
We study the nonequilibrium dynamics of a many-body bosonic system on a lattice, subject to
driving and dissipation. The time-evolution is described by a master equation, which we treat within a gene...