Duality via Sequential Quantum Circuit in the Topological Holography Formalism
Abstract
Two quantum theories which look different but are secretly describing the same low-energy physics are said to be dual to each other. When realized in the Topological Holography formalism, duality corresponds to changing the gapped boundary condition on the top boundary of a topological field theory, which determines the symmetry of the system, while not affecting the bottom boundary where all the dynamics take place. In this paper, we show that duality in the Topological Holography formalism can be realized with a Sequential Quantum Circuit applied to the top boundary. As a consequence, the Hamiltonians before and after the duality mapping have exactly the same spectrum in the corresponding symmetry sectors, and the entanglement in the corresponding low-energy eigenstates differs by at most an area law term.
Cite
@article{arxiv.2409.06647,
title = {Duality via Sequential Quantum Circuit in the Topological Holography Formalism},
author = {Robijn Vanhove and Vibhu Ravindran and David T. Stephen and Xiao-Gang Wen and Xie Chen},
journal= {arXiv preprint arXiv:2409.06647},
year = {2025}
}
Comments
22 pages, 10 figures, 5 tables references added