4 citations · 4 across the 1 of their papers we have counts for
4 papers
Entanglement Entropy and Spatial Geometry
Micheal S. Berger, Roman V. Buniy
The entanglement entropy in a quantum field theory between two regions of space has been shown in simple cases to be proportional to the volume of the hypersurface separating the r…
Higher order topological invariants from the Chern-Simons action
Roman V. Buniy, Thomas W. Kephart
It is well known that for a field theory with the Chern-Simons action, expectation values of Wilson line operators are topological invariants. The standard result is expressed in t…
Higher order topological actions
Roman V. Buniy, Thomas W. Kephart
In classical mechanics, an action is defined only modulo additive terms which do not modify the equations of motion; in certain cases, these terms are topological quantities. We co…
A proposal for detecting second order topological quantum phase
Roman V. Buniy, Thomas W. Kephart
Gaussian linking of a semiclassical path of a charged particle with a magnetic flux tube is responsible for the Aharonov-Bohm effect, where one observes interference proportional t…