Supersolid formation in a dipolar condensate by roton instability
arXiv:2305.19811 · doi:10.1103/PhysRevA.108.033316
Abstract
We characterize the role of the roton instability in the formation of a supersolid state of an elongated dipolar condensate, following a quench of the contact interactions across the superfluid-supersolid transition, as observed in recent experiments. We perform dynamical simulations by means of the extended Gross-Pitaevskii equation including quantum corrections, for different final values of the wave scattering length. The corresponding excitation spectrum is computed using an effective one-dimensional description, revealing that the calculated growth rates of the unstable roton mode accurately reproduce the observed behavior. Our results provide valuable insights regarding the formation time of the supersolid and its scaling behavior with respect to the -wave scattering length.
References in corpus (23)
- Self-bound droplets of a dilute magnetic quantum liquid
- Transient supersolid properties in an array of dipolar quantum droplets
- Long-lived and transient supersolid behaviors in dipolar quantum gases
- Radial and angular rotons in trapped dipolar gases
- Two-dimensional supersolidity in a dipolar quantum gas
- Bogoliubov modes of a dipolar condensate in a cylindrical trap
- Mean-field expansion in Bose-Einstein condensates with finite-range interactions
- Supersolidity around a critical point in dipolar Bose Einstein condensates
- Striped states in a many-body system of tilted dipoles
- Two-Dimensional Supersolid Formation in Dipolar Condensates
- Pattern Formation in Quantum Ferrofluids: from Supersolids to Superglasses
- Rotating a supersolid dipolar gas
- Observation of vortices and vortex stripes in a dipolar Bose-Einstein condensate
- Phases of supersolids in confined dipolar Bose-Einstein condensates
- Roton Excitations in an Oblate Dipolar Quantum Gas
- Quantized vortices in dipolar supersolid Bose-Einstein condensed gases
- Supersolidity in Two-Dimensional Trapped Dipolar Droplet Arrays
- Heating a dipolar quantum fluid into a solid
- Dimensional crossover in the superfluid-supersolid quantum phase transition
- Supersolidity and crystallization of a dipolar Bose gas in an infinite tube
- Supersolid edge and bulk phases of a dipolar quantum gas in a box
- Ground-state stability and excitation spectrum of a one-dimensional dipolar supersolid
- Crossing the superfluid-supersolid transition of an elongated dipolar condensate
Cited by in corpus (9)
- From Fractional Quantum Anomalous Hall Smectics to Polar Smectic Metals: Nontrivial Interplay Between Electronic Liquid Crystal Order and Topological Order in Correlated Topological Flat Bands
- Kibble-Zurek scaling of the superfluid-supersolid transition in an elongated dipolar gas
- Continuous Transition between Bosonic Fractional Chern Insulator and Superfluid
- Josephson vortices and persistent current in a double-ring supersolid system
- Phase-induced vortex pinning in rotating supersolid dipolar systems
- Beyond-mean-field phases of rotating dipolar condensates
- Continuous transition and gapless roton inside fractional quantum anomalous Hall states
- Supersolid light in a semiconductor microcavity
- Quasiparticle projection method for dynamically unstable Bose-Einstein condensates