Anyon-trions in atomically thin semiconductor heterostructures

• URL: http://arxiv.org/abs/2507.08933v2
• Date: Sun, 20 Jul 2025 11:48:26 GMT
• Title: Anyon-trions in atomically thin semiconductor heterostructures
• Authors: Nader Mostaan, Nathan Goldman, Ataç İmamoğlu, Fabian Grusdt,
• Abstract summary: We show that a long-lived, optically generated interlayer exciton can bind to a quasihole in a fractional quantum excitation Hall state, forming a composite excitation we term an anyon-trion.<n>An experimental realization based on photoluminescence from localized interlayer excitons in a quantum twisting microscope setup should allow for a direct optical observation of anyon-trions.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The study of anyons in topologically ordered quantum systems has mainly relied on edge-state interferometry. However, realizing controlled braiding of anyons necessitates the ability to detect and manipulate individual anyons within the bulk. Here, we propose and theoretically investigate a first step toward this goal by demonstrating that a long-lived, optically generated interlayer exciton can bind to a quasihole in a fractional quantum Hall state, forming a composite excitation we term an anyon-trion. Using exact diagonalization, we show that mobile anyon-trions possess a binding energy of approximately 0.5 meV, whereas static anyon-trions exhibit a binding energy of about 0.9 meV, that is linearly proportional to the quasiholes fractional charge. An experimental realization based on photoluminescence from localized interlayer excitons in a quantum twisting microscope setup should allow for a direct optical observation of anyon-trions.

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