English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We develop and exploit an out-of-equilibrium theory, valid in arbitrarydimensions, which does not require initial thermalization. It is perturbativewith respect to a weak time-dependent (TD) Hamiltonian term, but isnon-perturbative with respect to strong coupling to an electromagneticenvironment, or to Coulomb or superconducting correlations. We derive unifyingrelations between the current generated by coherent radiation or statisticalmixture of radiations, superimposed on a dc voltage $V_{dc}$, and theout-of-equilibrium dc current which encodes the effects of interactions. Thuswe extend fully the lateral band-transmission picture, thus quantumsuperposition, to coherent many-body correlated states. This provides methodsfor a determination of the carrier's charge q free from unknown parametersthrough the robustness of the Josephson-like frequency. Similar relations wehave derived for noise have allowed, recently, to determine the fractionalcharge in the Fractional Quantum Hall Effect (FQHE) within the Jain series (M.Kapfer et al, Science 2018). The present theory allows for breakdown ofinversion symmetry and for asymmetric rates for emission and absorption ofradiations. This generates a photo-ratchet effect we exploit to propose a novelmethod to measure the charge $q$, as well as spectroscopical analysis of theout-of-equilibrium dc current and the third cumulant of non-gaussianstatistical radiations. We apply the theory to the Tomonaga-Luttinger Liquid(TLL), showing a counterintuitive feature: a lorentzian pulse superimposed on$V_{dc}$ can reduce the current compared to its dc value, at the same $V_{dc}$,questioning the terminology "photo-assisted". Beyond a charge current, thetheory applies to operators such as spin current in the spin Hall effect, orvoltage drop across a phase-slip Josephson junction.

Unified time-dependent perturbative relations applied to spectroscopy through photo-drag current