Dipole condensates in tilted Bose-Hubbard chains
Ethan Lake, Hyun‐Yong Lee, Jung Hoon Han, T. Senthil
Abstract
The authors study a Bose-Hubbard model whose dynamics conserves the total center of mass, a situation which arises in strongly tilted optical lattices. Center of mass conservation is shown to dramatically alter the nature of the quantum phase diagram, which hosts several types of unusual gapless phases. These results hint at a wealth of interesting phenomena waiting to be uncovered in the physics of kinetically constrained many-body systems.
Topics & Concepts
Bose–Hubbard modelGapless playbackPhase diagramDipolePhysicsHubbard modelCondensed matter physicsCenter of mass (relativistic)QuantumPhase (matter)Statistical physicsQuantum mechanicsSuperconductivityEnergy–momentum relationCold Atom Physics and Bose-Einstein CondensatesQuantum many-body systemsStrong Light-Matter Interactions