Gaussian operations on bosonic systems have a strict cooling bound, but non-Gaussian p-excitation exchange achieves p-fold better performance.
In each iteration, the target is interact with reset qubit τS ⊗ τM with fixed machine gap ωS, ωM and interaction duration t
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Sub-Bath Cooling in Bosonic Systems: Gaussian Constraints and Non-Gaussian Enhancements
Gaussian operations on bosonic systems have a strict cooling bound, but non-Gaussian p-excitation exchange achieves p-fold better performance.