Controlled Buildup of Half-Quantized Thermal Conductance in an Engineered Chiral Spin Liquid Platform

• URL: http://arxiv.org/abs/2509.03355v1
• Date: Wed, 03 Sep 2025 14:42:13 GMT
• Title: Controlled Buildup of Half-Quantized Thermal Conductance in an Engineered Chiral Spin Liquid Platform
• Authors: Bo-Ye Sun, Baptiste Bermond, Lucila Peralta Gavensky, Marin Bukov, Zheng-Wei Zhou, Nathan Goldman,
• Abstract summary: We study thermal transport along the edge of a small chiral-spin-liquid device coupled to two Ising-chain reservoirs.<n>Switching on the tunnel couplings to the reservoirs generates a thermal current that dynamically builds up and reaches a quasi-steady-state regime.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We study thermal transport along the edge of a small chiral-spin-liquid device coupled to two Ising-chain reservoirs, a platform suitable for quantum-engineered systems. Adiabatically switching on the tunnel couplings to the reservoirs generates a thermal current that dynamically builds up and reaches a quasi-steady-state regime. In this time window, the two-terminal thermal conductance can approach half-quantized values -- a hallmark of Majorana-mediated transport -- under finely tuned conditions. The results agree with a steady-state Landauer-B\"uttiker description for sufficiently large reservoirs, where energy-resolved transmission rates help identify the optimal parameters to achieve the half-quantized conductance. This work provides a controllable platform to investigate topological thermal transport in engineered spin systems, such as realized in cold-atom and Rydberg-atom settings.

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