Quantum Phase Transition in an Antiferromagnetic Spinor Bose-Einstein Condensate

Abstract

We have experimentally observed the dynamics of an antiferromagnetic sodium Bose-Einstein condensate (BEC) quenched through a quantum phase transition. Using an off-resonant microwave field coupling the F = 1 and F = 2 atomic hyperfine levels, we rapidly switched the quadratic energy shift q from positive to negative values. At q = 0 the system undergoes a transition from a polar to antiferromagnetic phase. We measured the dynamical evolution of the population in the F = 1, m_F = 0 state in the vicinity of this transition point and observed a mixed state of all 3 hyperfine components for q < 0. We also observed the coarsening dynamics of the instability for q<0, as it nucleated small domains that grew to the axial size of the cloud.

References in corpus (8)

• Spontaneous symmetry breaking in a quenched ferromagnetic spinor Bose condensate
• Spinor Dynamics in an Antiferromagnetic Spin-1 Condensate
• Quantum Phase Transitions and Continuous Observation of Spinor Dynamics in an Antiferromagnetic Condensate
• Sculpting the Vortex State of a Spinor BEC
• Multi-resonant spinor dynamics in a Bose-Einstein condensate
• Spontaneous breaking of spatial and spin symmetry in spinor condensates
• Antiferromagnetic Spinor Condensates are Quantum Rotors
• Quantum-Fluctuation-Driven Coherent Spin Dynamics in Small Condensates

Cited by in corpus (85)

• Observation of universal dynamics in a spinor Bose gas far from equilibrium
• Observation of Dynamical Quantum Phase Transition with Correspondence in Excited State Phase Diagram
• Half-Quantum Vortices in an Antiferromagnetic Spinor Bose-Einstein Condensate
• Strongly interacting ultracold polar molecules
• Few-body Bose gases in low dimensions -- a laboratory for quantum dynamics
• Generation of Massive Entanglement Through Adiabatic Quantum Phase Transition in a spinor condensate
• Dynamics in spinor condensates controlled by a microwave dressing field
• Magnetic solitons in a spin-1 Bose-Einstein condensate
• Universal coarsening dynamics of a quenched ferromagnetic spin-1 condensate
• Phase diagram of spin 1 antiferromagnetic Bose-Einstein condensates
• Quenched binary Bose-Einstein condensates: spin domain formation and coarsening
• Dipolar and spinor bosonic systems
• Collisional Dynamics of Half-Quantum Vortices in a Spinor Bose-Einstein Condensate
• Antiferromagnetic Spatial Ordering in a Quenched One-dimensional Spinor Gas
• Striped Ferronematic ground states in a spin-orbit coupled $S=1$ Bose gas
• Spin nematic order in antiferromagnetic spinor condensates
• Coarsening and thermalisation properties of a quenched ferromagnetic spin-1 condensate
• Antiferromagnetic spinor condensates in a two-dimensional optical lattice
• Excited-state quantum phase transitions in spinor Bose-Einstein condensates
• Observation of generalized Kibble-Zurek mechanism across a first-order quantum phase transition in a spinor condensate
• Supersensitive quantum sensor based on criticality in an antiferromagnetic spinor condensate
• Many-body quantum chaos in stroboscopically-driven cold atoms
• Energetic stability of coreless vortices in spin-1 Bose-Einstein condensates with conserved magnetization
• Critical spin superflow in a spinor Bose-Einstein condensate
• Mapping the phase diagram of spinor condensates via adiabatic quantum phase transitions
• Different growth rates for spin and superfluid order in a quenched spinor condensate
• Spontaneous formation and relaxation of spin domains in antiferromagnetic spin-1 quasi-condensates
• Dynamical quantum phase transitions in a spinor Bose-Einstein condensate and criticality enhanced quantum sensing
• Emergence and scaling of spin turbulence in quenched antiferromagnetic spinor Bose-Einstein condensates
• Quantum scars and regular eigenstates in a chaotic spinor condensate
• Phase Diagram, Stability and Magnetic Properties of Nonlinear Excitations in Spinor Bose-Einstein Condensates
• Bi-directional universal dynamics in a spinor Bose gas close to a non-thermal fixed point
• Coarsening dynamics of an isotropic ferromagnetic superfluid
• Nematic ordering dynamics of an anti-ferromagnetic spin-1 condensate
• Excited-state quantum phase transitions in spin-orbit coupled Bose gases
• Violation of single-length scaling dynamics via spin vortices in an isolated spin-1 Bose gas
• Precise measurements on a quantum phase transition in antiferromagnetic spinor Bose-Einstein condensates
• Kibble-Zurek mechanism in a trapped ferromagnetic Bose-Einstein condensate
• Topological interface physics of defects and textures in spinor Bose-Einstein condensates
• Dynamical preparation of stripe states in spin-orbit coupled gases
• Static structure factors for a spin-1 Bose-Einstein condensate
• Goldstone-mode Instability leading to Fragmentation in a Spinor Bose-Einstein Condensate
• Multicriticality and quantum fluctuation in generalized Dicke model
• Efficient generation of many-body entangled states by multilevel oscillations
• Squeezed Ground States in a Spin-1 Bose-Einstein Condensate
• Dynamics of a quenched spin-1 antiferromagnetic condensate in a harmonic trap
• Floquet Spinor Bose Gases
• Phase-space mixing in dynamically unstable, integrable few-mode quantum systems
• Imprinting a topological interface using Zeeman shifts in an atomic spinor Bose-Einstein condensate
• Many-body effects on second-order phase transitions in spinor Bose-Einstein condensates and breathing dynamics
• Manipulation of heteronuclear spin dynamics with microwave and vector light shift
• Efficient generation of many-body singlet states of spin-1 bosons in optical superlattices
• Spin-driven stationary turbulence in spinor Bose-Einstein condensates
• Metastable hard-axis polar state of a spinor Bose-Einstein condensate under a magnetic field gradient
• Stability and dynamics across magnetic phases of vortex-bright type excitations in spinor Bose-Einstein condensates
• Engineering Dynamical Phase Diagrams with Driven Lattices in Spinor Gases
• Excited state quantum phase transition and Loschmidt echo spectra in a spinor Bose-Einstein condensate
• Domain percolation in a quenched ferromagnetic spinor condensate
• Spin 1 condensates at thermal equilibrium : a $SU(3)$ coherent state approach
• Crossover from weak to strong quench in a spinor Bose-Einstein condensate
• Dynamical mean-field driven spinor condensate physics beyond the single-mode approximation
• Nematic-orbit coupling and nematic density waves in spin-1 condensates
• Spin-1 Bose Hubbard model with nearest neighbour extended interaction
• Finite temperature ferromagnetic transition in coherently coupled Bose gases
• Metastable spin-phase diagrams in antiferromagnetic Bose-Einstein condensates
• Magnetic resonance spectroscopy and characterization of magnetic phases for spinor Bose-Einstein condensates
• Influence of quadratic Zeeman effect on spin waves in dipolar lattices
• Regulating spin reversal in dipolar systems by the quadratic Zeeman effect
• Half-quantum vortex generation in a two-component Bose-Einstein condensate by an oscillatory magnetic obstacle
• Quantum phase transition in an atom-molecule conversion system with atomic hopping
• Excitation spectrum of a toroidal spin-1 Bose-Einstein condensate
• Matter-Wave Interference versus Spontaneous Pattern Formation in Spinor Bose-Einstein Condensate
• Dynamical Zeeman resonance in spin-orbit-coupled spin-1 Bose gases
• Hanbury Brown-Twiss correlations and multimode dynamics of quenched spinor Bose-Einstein condensates
• Spin dynamics in lattices of spinor atoms with quadratic Zeeman effect
• Multifaceted phase ordering kinetics of an antiferromagnetic spin-1 condensate
• Multifractality and excited-state quantum phase transition in ferromagnetic spin-$1$ Bose-Einstein condensates
• Seeing spin dynamics in atomic gases
• Universal quantum computation and quantum error correction with ultracold atomic mixtures
• Phase diagrams of spin-2 Floquet spinor Bose-Einstein condensates
• Mean-field spin-oscillation dynamics beyond the single-mode approximation for a harmonically trapped spin-1 Bose-Einstein condensate
• Polarization-Sensitive Imaging in Magnetic Environments
• Emergent quantum field theories on curved spacetimes in spinor Bose-Einstein condensates: from scalar to Proca fields
• Characterizing dynamical phase transitions in a spinor Bose-Einstein condensate via quantum and semiclassical analyses
• Emergence of spin-mixed superstripe phases in spin-orbit coupled spin-1 condensate