Equivalently in Heisenberg picture, we have ¯nS(t) = tr h τSE † t (ˆnS) i (B2) where E † t (ˆnS) = tr M (I ⊗ √τM )V (p)†(t)(ˆnS ⊗ I)V (p)(t)(I ⊗ √τM )

Evolution of mean excitation number under Heisenberg picture The mean excitation number of target after single operation of V (p)(t) is given by ¯nS(t) = tr h V (p)(t)(ρS ⊗ ρM )V (

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Sub-Bath Cooling in Bosonic Systems: Gaussian Constraints and Non-Gaussian Enhancements

quant-ph · 2025-12-11 · unverdicted · novelty 7.0

Gaussian operations on bosonic systems have a strict cooling bound, but non-Gaussian p-excitation exchange achieves p-fold better performance.

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Sub-Bath Cooling in Bosonic Systems: Gaussian Constraints and Non-Gaussian Enhancements quant-ph · 2025-12-11 · unverdicted · none · ref 48
Gaussian operations on bosonic systems have a strict cooling bound, but non-Gaussian p-excitation exchange achieves p-fold better performance.

Equivalently in Heisenberg picture, we have ¯nS(t) = tr h τSE † t (ˆnS) i (B2) where E † t (ˆnS) = tr M (I ⊗ √τM )V (p)†(t)(ˆnS ⊗ I)V (p)(t)(I ⊗ √τM )

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