Reversible feedback confinement
| Autor: | Jordan M. Horowitz, Juan M. R. Parrondo, Léo Granger, Luis Dinis |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Physics
Statistical Mechanics (cond-mat.stat-mech) Posterior probability FOS: Physical sciences General Physics and Astronomy Stiffness Thermal management of electronic devices and systems Dissipation 01 natural sciences 010305 fluids & plasmas symbols.namesake General theory 0103 physical sciences medicine symbols Física nuclear Statistical physics medicine.symptom Finite time 010306 general physics Hamiltonian (quantum mechanics) Brownian motion Condensed Matter - Statistical Mechanics |
| Zdroj: | E-Prints Complutense: Archivo Institucional de la UCM Universidad Complutense de Madrid E-Prints Complutense. Archivo Institucional de la UCM instname |
| Popis: | We present a feedback protocol that is able to confine a system to a single micro-state without heat dissipation. The protocol adjusts the Hamiltonian of the system in such a way that the Bayesian posterior distribution after measurement is in equilibrium. As a result, the whole process satisfies feedback reversibility -- the process is indistinguishable from its time reversal -- and assures the lowest possible dissipation for confinement. In spite of the whole process being reversible it can surprisingly be implemented in finite time. We illustrate the idea with a Brownian particle in a harmonic trap with increasing stiffness and present a general theory of reversible feedback confinement for systems with discrete states. 9 pages, 1 figure |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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