Pathway toward the formation of supermixed states in ultracold boson mixtures loaded in ring lattices

Abstract

We investigate the mechanism of formation of supermixed soliton-like states in bosonic binary mixtures loaded in ring lattices. We evidence the presence of a common pathway which, irrespective of the number of lattice sites and upon variation of the interspecies attraction, leads the system from a mixed and delocalized phase to a supermixed and localized one, passing through an intermediate phase where the supermixed soliton progressively emerges. The degrees of mixing, localization and quantum correlation of the two condensed species, quantified by means of suitable indicators commonly used in Statistical Thermodynamics and Quantum Information Theory, allow one to reconstruct a bi-dimensional mixing-supermixing phase diagram featuring two characteristic critical lines. Our analysis is developed both within a semiclassical approach capable of capturing the essential features of the two-step mixing-demixing transition and with a fully-quantum approach.

12 pages, 8 figures

References in corpus (19)

• Multi-Component Quantum Gases in Spin-Dependent Hexagonal Lattices
• Degenerate Bose-Bose mixture in a three-dimensional optical lattice
• Bose-Einstein Condensation of an Ytterbium Isotope
• Modulation instability and solitary wave formation in two-component Bose-Einstein condensates
• Phase separation in a two species Bose mixture
• Mixtures of strongly interacting bosons in optical lattices
• Weakly linked binary mixtures of F=1 87-Rb Bose-Einstein condensates
• Quantum phase transition and critical fluctuations of an attractive Bose gas in a double well potential
• Two-species boson mixture on a ring: A group theoretic approach to the quantum dynamics of low-energy excitations
• Quantum dynamics of bosons in a two-ring ladder: dynamical algebra, vortex-like excitations and currents
• The mixing-demixing phase diagram of ultracold heteronuclear mixtures in a ring trimer
• Phase separation can be stronger than chaos
• Delocalization effects, entanglement entropy and spectral collapse of boson mixtures in a double well
• The phase-separation mechanism of a binary mixture in a ring trimer
• Residual entropy and critical behavior of two interacting boson species in a double well
• A continuous-variable approach to the spectral properties and quantum states of the two-component Bose-Hubbard dimer
• Superfluid Drag in Multicomponent Bose-Einstein Condensates on a Square Optical Lattice
• Quantum phase transitions and the degree of nonidentity in the system with two different species of vector bosons
• Spectral properties of attractive bosons in a ring lattice including a single-site potential

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• Quantum-granularity effect in the formation of supermixed solitons in ring lattices
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