1 citations · 2 across the 11 of their papers we have counts for
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-Flux Tuning of Quantum Paramagnetism in the Triangular-Lattice Hubbard Model
Zhaochen Liu, Andreas Feuerpfeil, Ronny Thomale
We compare two time-reversal-symmetric triangular-lattice Hubbard models at half filling: the zero-flux model and a staggered -flux model with zero and flux through opposite…
Symmetric Mode Ansatz: Theory of Magnon Collective Modes in Chern Insulators
Miguel Gonçalves, Jonah Herzog-Arbeitman, Juan Felipe Mendez-Valderrama +3
Moiré materials host integer and fractional Chern insulators (FCIs) where time-reversal is broken spontaneously by flat band ferromagnetism. In twisted MoTe2, unlike in quantum Hal…
Superconducting and charge-ordered phases from Dirac quantum spin liquids on the triangular lattice
Andreas Feuerpfeil, Ronny Thomale, Subir Sachdev +1
Triangular-lattice quantum spin-liquid insulators are observed to undergo transitions to superconductivity under pressure or doping, and exhibit enhanced terahertz conductivity whe…
Symmetry-resolved monopoles and stability criteria for an Dirac spin liquid on the maple-leaf lattice
Yunchao Zhang, Andreas Feuerpfeil, Subir Sachdev +2
The Dirac spin liquid provides a useful organizing framework for frustrated magnets: it offers an algebraic parent state from which competing orders, confinement pa…
Momentum-Space Entanglement Signatures and Spinon Breakdown in the - Zig-Zag Heisenberg Chain
Tom Oeffner, Ludwig Bordfeldt, Andreas Feuerpfeil +5
We investigate the resilience of spinon quasiparticles in the - zig-zag spin chain () from the viewpoint of momentum-space entanglement. For small , we show t…
Parent Hamiltonian construction of generalized Calogero-Sutherland models
Hari Borutta, Andreas Feuerpfeil, Yasir Iqbal
The Calogero-Sutherland model is a paradigmatic integrable system describing one-dimensional non-relativistic particles with inverse-square-type interactions. At interaction streng…
Unified gauge-theory description of quantum spin liquids on square-based frustrated lattices
Atanu Maity, Andreas Feuerpfeil, Ronny Thomale +2
Quantum spin liquids are commonly thought to be highly sensitive to lattice geometry, symmetry, and microscopic exchange patterns, leading to a proliferation of seemingly distinct…
Higgs criticality of Dirac spin liquids on depleted triangular lattices
Andreas Feuerpfeil, Atanu Maity, Ronny Thomale +2
We investigate Higgs criticality in candidate U(1) Dirac spin liquids across a family of depleted triangular lattices: the triangular, kagome, and maple-leaf geometries. For each,…
Unifying Dirac Spin Liquids on Square and Shastry-Sutherland Lattices via Fermionic Deconfined Criticality
Andreas Feuerpfeil, Leyna Shackleton, Atanu Maity +3
We present a fermionic gauge theory for deconfined quantum criticality on the Shastry-Sutherland lattice and reveal its shared low-energy field-theoretic structure with the square…
Semi-Dirac spin liquids and frustrated quantum magnetism on the trellis lattice
Sourin Chatterjee, Atanu Maity, Janik Potten +7
Geometrical frustration in quantum magnets provides a fertile setting for unconventional phases of matter, including quantum spin liquids (QSLs). The trellis lattice, with its comp…
Evidence for a Dirac spin liquid in the generalized Shastry-Sutherland model
Atanu Maity, Francesco Ferrari, Sylvain Capponi +8
We present a multimethod investigation of the recently reported quantum spin liquid (QSL) phase in the spin-1/2 Heisenberg antiferromagnet on the Shastry-Sutherland lattice. A comp…