This paper studies bosonic transport through one-dimensional spin systems, induced by coupling them to bosonic reservoirs held at different temperatures. Using the quantum-optical master equation in the weak-coupling limit, it calculates the energy transmitted from source to drain and shows that, at large thermal bias, the resulting current is a sensitive indicator of the underlying quantum-critical behavior of the spin system.
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- Authors: Gernot Schaller, Malte Vogl, and Tobias Brandes
- Journal: Journal of Physics: Condensed Matter 26, 265001 (2014)
- DOI: 10.1088/0953-8984/26/26/265001