Observation of Bose-Einstein Condensation in a Strong Synthetic Magnetic Field

Abstract

Extensions of Berry's phase and the quantum Hall effect have led to the discovery of new states of matter with topological properties. Traditionally, this has been achieved using gauge fields created by magnetic fields or spin orbit interactions which couple only to charged particles. For neutral ultracold atoms, synthetic magnetic fields have been created which are strong enough to realize the Harper-Hofstadter model. Despite many proposals and major experimental efforts, so far it has not been possible to prepare the ground state of this system. Here we report the observation of Bose-Einstein condensation for the Harper-Hofstadter Hamiltonian with one-half flux quantum per lattice unit cell. The diffraction pattern of the superfluid state directly shows the momentum distribution on the wavefuction, which is gauge-dependent. It reveals both the reduced symmetry of the vector potential and the twofold degeneracy of the ground state. We explore an adiabatic many-body state preparation protocol via the Mott insulating phase and observe the superfluid ground state in a three-dimensional lattice with strong interactions.

6 pages, 5 figures. Supplement: 6 pages, 4 figures

References in corpus (15)

• Superconducting proximity effect and Majorana fermions at the surface of a topological insulator
• Observation of Majorana Fermions in Ferromagnetic Atomic Chains on a Superconductor
• Observation of Majorana Fermions in a Nb-InSb Nanowire-Nb Hybrid Quantum Device
• Measuring the Chern number of Hofstadter bands with ultracold bosonic atoms
• Visualizing edge states with an atomic Bose gas in the quantum Hall regime
• Negative Absolute Temperature for Motional Degrees of Freedom
• Weyl points in three-dimensional optical lattices: synthetic magnetic monopoles in momentum space
• Periodically-driven quantum matter: the case of resonant modulations
• Scattering Theory for Floquet-Bloch States
• Condensed Groundstates of Frustrated Bose-Hubbard Models
• Phase Boundary of the Boson Mott Insulator in a Rotating Optical Lattice
• Transverse collisional instabilities of a Bose-Einstein condensate in a driven one-dimensional lattice
• Stroboscopic versus non-stroboscopic dynamics in the Floquet realization of the Harper-Hofstadter Hamiltonian
• Bogoliubov theory of interacting bosons on a lattice in a synthetic magnetic field
• Time-of-flight patterns of ultra-cold bosons in optical lattices in various Abelian artificial magnetic field gauges

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