Bath memory as a precision resource in quantum transport (opens in new tab)

Structured baths can reshape transport fluctuations in mesoscopic quantum devices, yet a predictive criterion for when this enhances precision has been lacking. We propose a route towards such precision advantages by utilizing bath memory in coherent fermionic transport through a noninteracting quantum-dot chain. Using the Landauer-B\"uttiker formalism, we derive a dual impedance-matching condition that synchronizes the conductor mode splittin...