Abstracts

Eric Lutz
University of Erlangen-Nurnberg


Nonequilibrium information erasure

We investigate the erasure of information stored in a nonequilibrium state of a symmetric underdamped memory. We introduce nonequilibrium erasure protocols that exploit the initial preparation energy and show that they allow to reach nonequilibrium Landauer bounds on heat and work. We further establish that writing and erasing operations need to be treated on an equal footing away from equilibrium and that their combined energetic cost is larger than kT ln 2 per bit.
We finally provide numerical simulations with realistic parameters of an optically levitated nanosphere memory.




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