2 papers
quant-ph2024
Non-abelian symmetry-resolved entanglement entropy
Eugenio Bianchi, Pietro Dona, Rishabh Kumar
We introduce a mathematical framework for symmetry-resolved entanglement entropy with a non-abelian symmetry group. To obtain a reduced density matrix that is block-diagonal in the…
quant-ph2023
Spontaneously interacting qubits from Gauss-Bonnet
Sean Prudhoe, Rishabh Kumar, Sarah Shandera
Building on previous constructions examining how a collection of small, locally interacting quantum systems might emerge via spontaneous symmetry breaking from a single-particle sy…