For 3D Dirac fermions at charge neutrality the diffusion constant is purely quantum geometric in origin because the band velocity contribution cancels exactly, unlike in 2D.
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4 Pith papers cite this work. Polarity classification is still indexing.
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Persistent spin textures isolate spin-rotation quantum geometry in nonlinear magnetotransport, yielding direction-independent responses as a distinctive signature even with symmetry-breaking terms.
In the α-T3 lattice with on-site asymmetry, mean-field theory shows a superconducting gap that grows as a power law with interaction strength at flat-band filling, while the geometric part of the superfluid weight grows linearly and is enhanced by tuning α.
A two-level emitter coupled to a chiral flat band in a photonic lattice shows Rabi oscillations with a lifted mode whose effective coupling strength and mode volume remain protected against weak hopping disorder.
citing papers explorer
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Quantum geometric contribution to the diffusion constant
For 3D Dirac fermions at charge neutrality the diffusion constant is purely quantum geometric in origin because the band velocity contribution cancels exactly, unlike in 2D.
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Probing persistent spin textures through nonlinear magnetotransport
Persistent spin textures isolate spin-rotation quantum geometry in nonlinear magnetotransport, yielding direction-independent responses as a distinctive signature even with symmetry-breaking terms.
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Superconductivity and geometric superfluid weight of a tunable flat band system
In the α-T3 lattice with on-site asymmetry, mean-field theory shows a superconducting gap that grows as a power law with interaction strength at flat-band filling, while the geometric part of the superfluid weight grows linearly and is enhanced by tuning α.
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Resonant cavity-QED with chiral flat bands
A two-level emitter coupled to a chiral flat band in a photonic lattice shows Rabi oscillations with a lifted mode whose effective coupling strength and mode volume remain protected against weak hopping disorder.