Using the operational framework of completely positive, trace preserving operations and thermodynamic fluctuation relations, we derive a lower bound for the heat exchange in a Landauer erasure process on a quantum system. Our bound comes from a nonphenomenological derivation of the Landauer principle which holds for generic nonequilibrium dynamics. Furthermore, the bound depends on the nonunita...

Landauer’s Principle asserts that there is an unavoidable cost in thermodynamic entropy creation when data is erased. It is usually derived from incorrect assumptions, most notably, that erasure must compress the phase space of a memory device or that thermodynamic entropy arises from the probabilistic uncertainty of random data. Recent work seeks to prove Landauer’s Principle without using the...

In this work, ab initio calculations based on density functional theory and the Landauer formalism are carried out to investigate ballistic thermoelectric properties of $T\text{\ensuremath{-}}\mathrm{Hf}{\mathrm{Se}}_{2}$ nanoribbons (NRs). The zigzag-edged NRs metallic, they not included in study. armchair possess two types edge symmetries depending number atoms present a row; odd-numbered hav...

Using the Landauer formula and a random matrix model, we investigate the autocorrelation function of the conductance versus magnetic

We analyze theoretically the transport properties of a weakly interacting ultracold Bose gas enclosed in two reservoirs connected by a constriction. We assume that the transport of the superfluid part is hydrodynamic, and we describe the ballistic transport of the normal part using the Landauer-Büttiker formalism. Modeling the coupled evolution of the phase, atom number, and temperature mismatc...

The Keldysh nonequilibrium Green function technique is used very widely to describe transport phenomena in mesoscopic systems. The technique is somewhat subtle, and a rigorous treatment would require much more time than we have at our disposal, see, for example, the text-book by Haug and Jauho [1]. The goal of these lectures is to give a rough idea of how the technique works, and illustrate it ...

We introduce a fast and highly efficient physically realizable bit swap. Employing readily available scalable Josephson junction microtechnology, the design implements recently introduced paradigm of momentum computing. Its nanosecond speeds sub-Landauer thermodynamic efficiency arise from dynamically storing memory in degrees freedom. As such, during swap, microstate distribution is never near...

Abstract Realizing the promises of molecular electronic devices requires an understanding transport on nanoscale. Here, we consider a Su-Schrieffer-Heeger model for semi-conducting trans-polyacetylene wires in which endow charge carriers with finite lifetime. The aim this exercise is two-fold: (i) simplicity allows insightful numerical and analytical comparison Landauer Kubo linear-response for...

5. Alzahrani AG, Al Shaiban HM, AlMazroa MA, Al-Hayani O, MacNeil A, Rollin PE, et al. Epidemiologic characteristics of Alkhurma hemorrhagic fever in humans in Najran City, Saudi Arabia. Emerg Infect Dis. 2010;16:1882–8. 6. Hoogstraal H, Wassef HY, Buttiker W. Ticks (Acarina) of Saudi Arabia family Argasidae, Ixodidae. In: Wittmer W, Buttiker W, editors. Fauna of Saudi Arabia. Vol. 3. Basel: Ci...