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Spectroscopy of anyons
Spectroscopy of anyons
We propose signatures of mobile Ising anyons in a generic Kitaev liquid revealed by Raman spectroscopy. We obtain power-law onsets of the signal with exponents determined by the anyonic statistics, number of band minima and the polarization channel.
AP Joy and A Rosch, arxiv:2505.01042
2D to 3D: Multilayer spin liquids
2D to 3D: Multilayer spin liquids
We explored how weakly coupling multiple spin liquid layers affect the fractionalized excitations the spin liquid. In particular, the quasiparticles are now forced to form bound states in order to move around since fractionalization and conservation laws prevent single particles from moving. Our work suggests that layered structure of spin liquid materials may serve as a new tool for probing topological excitations.
AP Joy & Achim Rosch, npj quantum materials (2024)
Theory of dynamical gauge fields in Kitaev matter
Theory of dynamical gauge fields in Kitaev matter
The Kitaev spin liquid exemplifies the idea of spin fractionalization and emergent gauge fields in an exactly solvable toy model. We developed a comprehensive theory describing how integrability breaking terms transform the static visons into mobile particles strongly scattering from Majorana fermions. This work takes an important step towards bringing the toy model closer to real materials.
AP Joy & Achim Rosch Phys. Rev. X 12, 041004
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