Current browse context:
quant-ph
Change to browse by:
References & Citations
Quantum Physics
Title: Finite-time Landauer principle beyond weak coupling
(Submitted on 3 Nov 2022 (v1), last revised 24 Oct 2023 (this version, v3))
Abstract: Landauer's principle gives a fundamental limit to the thermodynamic cost of erasing information. Its saturation requires a reversible isothermal process, and hence infinite time. We develop a finite-time version of Landauer's principle for a bit encoded in the occupation of a single fermionic mode, which can be strongly coupled to a reservoir. By solving the exact non-equilibrium dynamics, we optimize erasure processes (taking both the fermion's energy and system-bath coupling as control parameters) in the slow driving regime through a geometric approach to thermodynamics. We find analytic expressions for the thermodynamic metric and geodesic equations, which can be solved numerically. Their solution yields optimal processes that allow us to characterize a finite-time correction to Landauer's bound, fully taking into account non-markovian and strong coupling effects.
Submission history
From: Alberto Rolandi [view email][v1] Thu, 3 Nov 2022 18:00:13 GMT (2542kb,D)
[v2] Tue, 18 Apr 2023 15:17:33 GMT (2797kb,D)
[v3] Tue, 24 Oct 2023 09:33:43 GMT (2813kb,D)
Link back to: arXiv, form interface, contact.