Chiral Second-Sound Collective Modes at the Edge of 2D Systems with a Nontrivial Berry Curvature.We study the thermal transport in two-dimensional systems with a nontrivial Berry curvature texture.  At low temperature, the single-particle contribution to the transverse thermal conductance is exponentially suppressed, and only second-sound modes carry heat along the boundary.  A sharp change in the behavior of the thermal Hall conductance, extracted from nonlocal measurements of the temperature along the edge, marks the onset of ballistic heat transport due to second-sound edge modes.
THERM
Chiral Second-Sound Collective Modes at the Edge of 2D Systems with a Nontrivial Berry Curvature.We study the thermal transport in two-dimensional systems with a nontrivial Berry curvature texture.  At low temperature, the single-particle contribution to the transverse thermal conductance is exponentially suppressed, and only second-sound modes carry heat along the boundary.  A sharp change in the behavior of the thermal Hall conductance, extracted from nonlocal measurements of the temperature along the edge, marks the onset of ballistic heat transport due to second-sound edge modes.
THERM
Chiral Second-Sound Collective Modes at the Edge of 2D Systems with a Nontrivial Berry Curvature.We study the thermal transport in two-dimensional systems with a nontrivial Berry curvature texture.  At low temperature, the single-particle contribution to the transverse thermal conductance is exponentially suppressed, and only second-sound modes carry heat along the boundary.  A sharp change in the behavior of the thermal Hall conductance, extracted from nonlocal measurements of the temperature along the edge, marks the onset of ballistic heat transport due to second-sound edge modes.
THERM