Probing supersolidity through excitations in a spin-orbit-coupled Bose-Einstein condensate
arXiv:2412.13861 · doi:10.1126/science.adv1209
Abstract
Spin-orbit-coupled Bose-Einstein condensates are a flexible experimental platform to engineer synthetic quantum many-body systems. In particular, they host the so-called stripe phase, an instance of a supersolid state of matter. The peculiar excitation spectrum of the stripe phase, a definite footprint of its supersolidity, has been difficult to measure experimentally. Here, we perform in situ imaging of the stripes and directly observe both superfluid and crystal excitations. We investigate superfluid hydrodynamics and reveal a stripe compression mode, thus demonstrating that the system possesses a compressible crystalline structure. Through the frequency softening of this mode, we locate the supersolid transition point. Our results establish spin-orbit-coupled supersolids as ideal systems to investigate supersolidity and its rich dynamics.
Accepted version. 16 pages, 9 figures, includes supplementary materials
References in corpus (57)
- A spin-orbit coupled Bose-Einstein condensate
- Quantum liquid droplets in a mixture of Bose-Einstein condensates
- Spin-Orbit Coupled Spinor Bose-Einstein Condensates
- Self-bound quantum droplets in atomic mixtures
- Observation of the supersolid stripe phase in spin-orbit coupled Bose-Einstein condensates
- Collective Dipole Oscillation of a Spin-Orbit Coupled Bose-Einstein Condensate
- Supersolid formation in a quantum gas breaking continuous translational symmetry
- Observation of a dipolar quantum gas with metastable supersolid properties
- Transient supersolid properties in an array of dipolar quantum droplets
- Quantum tri-criticality and phase transitions in spin-orbit coupled Bose-Einstein condensates
- Supersolids: what and where are they ?
- Long-lived and transient supersolid behaviors in dipolar quantum gases
- Collective oscillations of a 1D trapped Bose gas
- A synthetic electric force acting on neutral atoms
- Supersolid symmetry breaking from compressional oscillations in a dipolar quantum gas
- The low-energy Goldstone mode in a trapped dipolar supersolid
- Excitation spectrum of a trapped dipolar supersolid and its experimental evidence
- Raman processes and effective gauge potentials
- Monitoring and manipulating Higgs and Goldstone modes in a supersolid quantum gas
- Experimental Determination of the Finite-Temperature Phase Diagram of a Spin-Orbit Coupled Bose Gas
- Negative mass hydrodynamics in a Spin-Orbit--Coupled Bose-Einstein Condensate
- Synthetic partial waves in ultracold atomic collisions
- Macroscopic dynamics of a trapped Bose-Einstein condensate in the presence of 1D and 2D optical lattices
- Bose-Einstein condensation into non-equilibrium states studied by condensate focusing
- Evidence of superfluidity in a dipolar supersolid from non-classical rotational inertia
- Realizing a 1D topological gauge theory in an optically dressed BEC
- An optical lattice with sound
- Spatial coherence of spin-orbit-coupled Bose gases
- Sum rules, dipole oscillation and spin polarizability of a spin-orbit coupled quantum gas
- The Fate of the Higgs Mode in a Trapped Dipolar Supersolid
- Feshbach resonances in potassium Bose-Bose mixtures
- Matter wave Fourier optics with a strongly interacting two-dimensional Fermi gas
- Collective excitations of a trapped Bose-Einstein condensate in the presence of a 1D optical lattice
- Supersolidity in ultra-cold dipolar gases
- Superfluid Density of a Spin-orbit Coupled Bose Gas
- Experimental realization of a superfluid stripe phase in a spin-orbit-coupled Bose-Einstein condensate enabled by momentum-space hopping
- Observation of vortices in a dipolar supersolid
- Sub-unity superfluid fraction of a supersolid from self-induced Josephson effect
- Quantum gas magnifier for sub-lattice-resolved imaging of three-dimensional quantum systems
- Exciting the Goldstone Modes of a Supersolid Spin-Orbit-Coupled Bose Gas
- Can angular oscillations probe superfluidity in dipolar supersolids?
- Spin current generation and relaxation in a quenched spin-orbit-coupled Bose-Einstein condensate
- Self-bound supersolid stripe phase in binary Bose-Einstein condensates
- Encoding a one-dimensional topological gauge theory in a Raman-coupled Bose-Einstein condensate
- Tune-out wavelengths for potassium
- Generating Schrödinger-cat states in momentum and internal-state space from Bose-Einstein condensates with repulsive interactions
- Dynamics of Stripe Patterns in Supersolid Spin-Orbit-Coupled Bose Gases
- Collective excitation of a trapped Bose-Einstein condensate with spin-orbit coupling
- Excited-state quantum phase transitions in spin-orbit coupled Bose gases
- Supersolid Striped Droplets in a Raman Spin-Orbit-Coupled System
- Hydrodynamics of a superfluid smectic
- Dynamical preparation of stripe states in spin-orbit coupled gases
- Visibility and stability of superstripes in a spin-orbit-coupled Bose-Einstein condensate
- Dipole dynamics of an interacting bosonic mixture
- Hyperfine effects on potassium tune-out wavelengths and polarizabilities
- Decoupled sound and amplitude modes in trapped dipolar supersolids
- Dipole modes of a trapped bosonic mixture: Fate of the sum-rule approach