Superradiant many-qubit absorption refrigerator
arXiv:2106.04164 · doi:10.1103/PhysRevApplied.16.044061
Abstract
We show that the lower levels of a large-spin network with a collective anti-ferromagnetic interaction and collective couplings to three reservoirs may function as a quantum absorption refrigerator. In appropriate regimes, the steady-state cooling current of this refrigerator scales quadratically with the size of the working medium, i.e., the number of spins. The same scaling is observed for the noise and the entropy production rate.
arXiv comment7+4+2 pages, 7 figures, extended discussion (v2 suffered from omissions due to unfortunate tex errors)
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