Zero sound in a quantum gas of spin-3/2 atoms with multipole exchange interaction

Abstract

In the context of quantum gases, we obtain a many-body Hamiltonian for spin-3/2 atoms with general multipole (spin, quadrupole, and octupole) exchange interaction by employing the apparatus of irreducible spherical tensor operators. This Hamiltonian implies the finite-range interaction, whereas, for zero-range (contact) potentials parameterized by the $s$-wave scattering length, the multipole exchange interaction becomes irrelevant. Following the reduced description method for quantum systems, we derive the quantum kinetic equation for spin-3/2 atoms in a magnetic field and apply it to examine the high-frequency oscillations known as zero sound.

21 pages, 2 figures

References in corpus (4)

• Bose-Einstein Condensation of Erbium
• Broken axisymmetry phase of a spin-1 ferromagnetic Bose-Einstein condensate
• Accurate determination of the scattering length of erbium atoms
• Magnetic phases and phase diagram of spin-1 condensate with quadrupole degrees of freedom

Cited by in corpus (1)

• General collisionless kinetic approach to studying excitations in arbitrary-spin quantum atomic gases