Coherence in the Ferroelectric A3ClO (A = Li, Na) Family of Electrolytes.

Maria Helena Braga

doi:10.3390/ma14092398

Abstract

Coherence is a major caveat in quantum computing. While phonons and electrons are weakly coupled in a glass, topological insulators strongly depend on the electron-phonon coupling. Knowledge of the electron−phonon interaction at conducting surfaces is relevant from a fundamental point of view as well as for various applications, such as two-dimensional and quasi-1D superconductivity in nanotechnology. Similarly, the electron−phonon interaction plays a relevant role in other transport properties e.g., thermoelectricity, low-dimensional systems as layered Bi and Sb chalcogenides, and quasi-crystalline materials. Glass-electrolyte ferroelectric energy storage cells exhibit self-charge and self-cycling related to topological superconductivity and electron-phonon coupling; phonon coherence is therefore important. By recurring to ab initio molecular dynamics, it was demonstrated the tendency of the Li3ClO, Li2.92Ba0.04ClO, Na3ClO, and Na2.92Ba0.04ClO ferroelectric-electrolytes to keep phonon oscillation coherence for a short lapse of time in ps. Double-well energy potentials were obtained while the electrolyte systems were thermostatted in a heat bath at a constant temperature. The latter occurrences indicate ferroelectric type behavior but do not justify the coherent self-oscillations observed in all types of cells containing these families of electrolytes and, therefore, an emergent type phenomenon where the full cell works as a feedback system allowing oscillations coherence must be realized. A comparison with amorphous SiO2 was performed and the specific heats for the various species were calculated.

Highlights

Statistical physics relates the average behavior of a physical system with its microscopic constituents and their interactions
The results obctaalicnuTleahdteedfpofaorirrtcdhoiesnttrfrioeblrulirtnioogentlhefeucnntcrotinico-pnaesmrigoo(drri)cpcvhheoarsruuascst-etehrleoefcintthtreeoraalymtotomersipchhdoaiusvstaesntrcbueescteurnrewdse.erAemnaoelsxno-strated to be very daimffeprleenofttfhreolmattetrhios ssheoowbntafoirnLeid2.92fBoar0.0t4ChleOainmFoigruprheo5bu.s SiO2 that was used as a control, as its heat capaItcistyimispowrteanllt khingohlwignhti(nFgigthuart eifsa5m–8an).ifestation is observed during the ab-initio molecular dynamics (AMD) rebetwWeenhi0leaLnid3C7l.0Opplwashxi,tahoLtTniiso2lhono.e9wn,2txsBhd’veayosc0nost.a0ircmm4rieCleislcaplssOetowirnoiipedlnslehnsnaootncntedobvorteenhrnoeetbospsssphhecoroaivusnleellddadptebioindeortAnwrtaMsoiittnwDa(ep,sesersrtoverejdeeoncointnniigfoNlonyecaocntsuuftvrrtrerhioir.enonNgengoximlnntyeenNtechdnaoeettluduearspl3esD.,lcepopdruoocpuretlprsiasniettgos) 1.2 ps (Figure 5)
Two very distinctive features are found when comparing the amorphous ferroelectric electrolytes and the amorphous Si3O6 AMD relaxation oscillations; while the first is dissipative and anharmonic (Figure 5), in the second the dissipation is not observed and the system keeps its focal energy point fairly well; no exponential dissipation envelop-type could be observed in Figure 8 for SiO2 at 1600 K

Summary

Introduction

Statistical physics relates the average behavior of a physical system with its microscopic constituents and their interactions. Recent experiments with cold atoms have reached the interaction-dominated regime in quantum Ising magnets via optical coupling of trapped neutral atoms to Rydberg states [5]. Strong correlations in quantum Ising models have been observed in several experiments, starting from a single excitation in the superatom regime up to the point of crystallization. Rapid developments in this field make spin systems based on Rydberg atoms a promising platform to quantum simulation because of the unmatched flexibility and strength of interactions combined with high control and good isolation from the environment [7]

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Conclusion