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Bounds on corner entanglement in quantum critical states
Pablo Bueno, William Witczak-Krempa
The entanglement entropy in many gapless quantum systems receives a contribution from corners in the entangling surface in 2+1d. It is characterized by a universal function …
Optical conductivity of topological surface states with emergent supersymmetry
William Witczak-Krempa, Joseph Maciejko
Topological states of electrons present new avenues to explore the rich phenomenology of correlated quantum matter. Topological insulators (TIs) in particular offer an experimental…
Universal corner entanglement from twist operators
Pablo Bueno, Robert C. Myers, William Witczak-Krempa
The entanglement entropy in three-dimensional conformal field theories (CFTs) receives a logarithmic contribution characterized by a regulator-independent function when the…
Universality of corner entanglement in conformal field theories
Pablo Bueno, Robert C. Myers, William Witczak-Krempa
We study the contribution to the entanglement entropy of (2+1)-dimensional conformal field theories coming from a sharp corner in the entangling surface. This contribution is encod…
Using Geometry to Detect Grasps in 3D Point Clouds
Andreas ten Pas, Robert Platt
This paper proposes a new approach to detecting grasp points on novel objects presented in clutter. The input to our algorithm is a point cloud and the geometric parameters of the…