Axial collective mode of a dipolar quantum droplet
arXiv:2303.06894 · doi:10.3390/photonics10040393
Abstract
In this work, we investigate the ground state properties and collective excitations of a dipolar Bose-Einstein condensate that self-binds into a quantum droplet, stabilized by quantum fluctuations. We demonstrate that a sum rule approach can accurately determine the frequency of the low energy axial excitation, using properties of the droplet obtained from the ground state solutions. This excitation corresponds to an oscillation in the length of the filament-shaped droplet. Additionally, we evaluate the static polarizabilities, which quantify change in the droplet dimensions in response to a change in harmonic confinement.
arXiv comment7 pages, 3 figures (submitted to Photonics special issue on Quantum Droplets)
References in corpus (24)
- Theory of Bose-Einstein condensation in trapped gases
- The physics of dipolar bosonic quantum gases
- Bose-Einstein condensation of chromium
- A Strongly Dipolar Bose-Einstein Condensate of Dysprosium
- Bose-Einstein Condensation of Erbium
- Quantum Mechanical Stabilization of a Collapsing Bose-Bose Mixture
- Observation of quantum droplets in a strongly dipolar Bose gas
- Observing the Rosensweig instability of a quantum ferrofluid
- Self-bound droplets of a dilute magnetic quantum liquid
- Quantum-fluctuation-driven crossover from a dilute Bose-Einstein condensate to a macro-droplet in a dipolar quantum fluid
- Dipolar physics: A review of experiments with magnetic quantum gases
- Collective oscillations of a 1D trapped Bose gas
- Quantum filaments in dipolar Bose-Einstein condensates
- Supersolid symmetry breaking from compressional oscillations in a dipolar quantum gas
- Quantum Fluctuations in Dipolar Bose Gases
- Ground-state phase diagram of a dipolar condensate with quantum fluctuations
- Ground-state properties and elementary excitations of quantum droplets in dipolar Bose-Einstein condensates
- All-Optical Production of Chromium Bose-Einstein Condensates
- Beyond Mean-Field Low-Lying Excitations of Dipolar Bose Gases
- Collective excitations of self-bound droplets of a dipolar quantum fluid
- Scissors mode of dipolar quantum droplets of dysprosium atoms
- Numerical calculation of dipolar quantum droplet stationary states
- Infinite dipolar droplet -- a simple theory for the macro-droplet regime
- Excitations of a vortex line in an elongated dipolar condensate