Collective excitations of a spherical ultradilute quantum droplet
Hui Hu, Xia-Ji Liu
Abstract
The authors theoretically investigate how collective excitations of a three-dimensional quantum droplet are affected by the beyond-mean-field quantum fluctuations and a weak harmonic trapping potential. The existence of the surface modes is shown to be robust against the change in both factors.
Topics & Concepts
PhysicsAnsatzQuantum mechanicsQuantumOmegaMean field theoryField (mathematics)ExcitationEnergy (signal processing)QuasiparticleGaussianMathematicsSuperconductivityPure mathematicsCold Atom Physics and Bose-Einstein CondensatesQuantum, superfluid, helium dynamicsAtomic and Subatomic Physics Research