Fragmented many-body ground states for scalar bosons in a single trap

Abstract

We investigate whether the many-body ground states of bosons in a generalized two-mode model with localized inhomogeneous single-particle orbitals and anisotropic long-range interactions (e.g. dipole-dipole interactions), are coherent or fragmented. It is demonstrated that fragmentation can take place in a single trap for positive values of the interaction couplings, implying that the system is potentially stable. Furthermore, the degree of fragmentation is shown to be insensitive to small perturbations on the single-particle level.

arXiv comment4 pages of RevTex4, 3 figures; as published in Physical Review Letters

References in corpus (16)

• Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
• Cold bosonic atoms in optical lattices
• Strong dipolar effects in a quantum ferrofluid
• Quantum Superposition States of Bose-Einstein Condensates
• Fragmentation of Bose-Einstein Condensates
• Fragmented and Single Condensate Ground States of Spin-1 Bose Gas
• Do attractive bosons condense?
• Spatial fragmentation of a Bose-Einstein condensate in a double-well potential
• Stability of quasi-two-dimensional Bose-Einstein condensates with dominant dipole-dipole interactions
• Pathway from condensation via fragmentation to fermionization of cold bosonic systems
• Symmetry Breaking and Enhanced Condensate Fraction in a Matter-Wave Bright Soliton
• Condensate Fragmentation in a New Exactly Solvable Model for Confined Bosons
• On the criterion for Bose-Einstein condensation for particles in traps
• On-top fragmentation stabilizes atom-rich attractive Bose-Einstein condensates
• Formation and dynamics of many-boson fragmented states in attractive one-dimensional ultra-cold gases
• The absence of fragmentation in Bose-Einstein condensates

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