150 citations · 438 across the 8 of their papers we have counts for
8 papers
Bulk-boundary correspondence and singularity-filling in long-range free-fermion chains
Nick G. Jones, Ryan Thorngren, Ruben Verresen
The bulk-boundary correspondence relates topologically-protected edge modes to bulk topological invariants, and is well-understood for short-range free-fermion chains. Although cas…
Symmetry-resolved entanglement entropy in critical free-fermion chains
Nick G. Jones
The symmetry-resolved Rényi entanglement entropy is the Rényi entanglement entropy of each symmetry sector of a density matrix . This experimentally relevant quantity is known t…
Integrable spin chains and the Clifford group
Nick G. Jones, Noah Linden
We construct new families of spin chain Hamiltonians that are local, integrable and translationally invariant. To do so, we make use of the Clifford group that arises in quantum in…
Exact correlations in topological quantum chains
Nick G. Jones, Ruben Verresen
Although free-fermion systems are considered exactly solvable, they generically do not admit closed expressions for nonlocal quantities such as topological string correlations or e…
Skeleton of Matrix-Product-State-Solvable Models Connecting Topological Phases of Matter
Nick G. Jones, Julian Bibo, Bernhard Jobst +3
Models whose ground states can be written as an exact matrix product state (MPS) provide valuable insights into phases of matter. While MPS-solvable models are typically studied as…
Gapless topological phases and symmetry-enriched quantum criticality
Ruben Verresen, Ryan Thorngren, Nick G. Jones +1
We introduce topological invariants for gapless systems and study the associated boundary phenomena. More generally, the symmetry properties of the low-energy conformal field theor…
Asymptotic Correlations in Gapped and Critical Topological Phases of 1D Quantum Systems
Nick G. Jones, Ruben Verresen
Topological phases protected by symmetry can occur in gapped and---surprisingly---in critical systems. We consider non-interacting fermions in one dimension with spinless time-reve…
Topology and edge modes in quantum critical chains
Ruben Verresen, Nick G. Jones, Frank Pollmann
We show that topology can protect exponentially localized, zero energy edge modes at critical points between one-dimensional symmetry protected topological phases. This is possible…