851 citations · 4.1k across the 61 of their papers we have counts for
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Non-Invertible Interfaces Between Symmetry-Enriched Critical Phases
Saranesh Prembabu, Shu-Heng Shao, Ruben Verresen
Gapless quantum phases can become distinct when internal symmetries are enforced, in analogy with gapped symmetry-protected topological (SPT) phases. However, this distinction does…
Obstruction to Ergodicity from Locality and Higher Symmetries on the Lattice
Ramanjit Sohal, Ruben Verresen
We argue that the presence of any exact higher-form symmetry, under mild assumptions, presents a fundamental obstruction to ergodicity under unitary dynamics in lattice syst…
Multicriticality between Purely Gapless SPT Phases with Unitary Symmetry
Saranesh Prembabu, Ruben Verresen
Symmetry-protected topological (SPT) phases are commonly required to have an energy gap, but recent work has extended the concept to gapless settings. This raises a natural questio…
Intrinsic Heralding and Optimal Decoders for Non-Abelian Topological Order
Dian Jing, Pablo Sala, Liang Jiang +1
Topological order (TO) provides a natural platform for storing and manipulating quantum information. However, its stability to noise has only been systematically understood for Abe…
Charge pumps, pivot Hamiltonians and symmetry-protected topological phases
Nick. G. Jones, Ryan Thorngren, Ruben Verresen +1
Generalised charge pumps are topological obstructions to trivialising loops in the space of symmetric gapped Hamiltonians. We show that given mild conditions on such pumps, the ass…
Topological Phase Transitions and Mixed State Order in a Hubbard Quantum Simulator
Lin Su, Rahul Sahay, Michal Szurek +5
Topological phase transitions challenge conventional paradigms in many-body physics by separating phases that are locally indistinguishable yet globally distinct. Using a quantum s…
Enforced Gaplessness from States with Exponentially Decaying Correlations
Rahul Sahay, Curt von Keyserlingk, Ruben Verresen +1
It is well known that an exponentially localized Hamiltonian must be gapless if its ground state has algebraic correlations. We show that even certain exponentially decaying correl…
Universal Quantum Computation with the Quantum Double: A Pedagogical Exposition
Chiu Fan Bowen Lo, Anasuya Lyons, Ruben Verresen +2
Non-Abelian topological order (TO) enables topologically protected quantum computation with its anyonic quasiparticles. Recently, TO with gauge symmetry was identified as a s…