@article{12780, keywords = {Quantum Gases (cond-mat.quant-gas), Atomic Physics (physics.atom-ph), Fluid Dynamics (physics.flu-dyn), FOS: Physical sciences, FOS: Physical sciences}, author = {Reuben Wang and John Bohn}, title = {Thermal Conductivity of an Ultracold Paramagnetic Bose Gas}, abstract = {
We analytically derive the transport tensor of thermal conductivity in an ultracold, but not yet quantum degenerate, gas of Bosonic lanthanide atoms using the Chapman-Enskog procedure. The tensor coefficients inherit an anisotropy from the anisotropic collision cross section for these dipolar species, manifest in their dependence on the dipole moment, dipole orientation, and s-wave scattering length. These functional dependences open up a pathway for control of macroscopic gas phenomena via tuning of the microscopic atomic interactions. As an illustrative example, we analyze the time evolution of a temperature hot spot which shows preferential heat diffusion orthogonal to the dipole orientation, a direct consequence of anisotropic thermal conduction.
}, year = {2022}, journal = {Physical Review A}, volume = {106}, pages = {023319}, month = {2022-08}, publisher = {arXiv}, url = {https://journals.aps.org/pra/abstract/10.1103/PhysRevA.106.023319}, doi = {10.1103/PhysRevA.106.023319}, }