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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

How are the scattering between the constituents of matter and the resultingcollective phenomena affected by preparing the force carriers in differentquantum states? This question has become experimentally relevant in a specificnon-relativistic version of QED implemented within materials, where standardtechniques of quantum optics are available for the preparation of desiredquantum states of the carrier photon. We develop the necessary non-equilibriumapproach for computing the vertex function and find that, in addition to theenergy and momentum structure of the scattering, a further structure emergeswhich reflects the Hilbert-space distribution of the carrier quantum state.This emergent structure becomes non-trivial for non-Gaussian quantum states ofthe force carrier, and can dramatically affect interactions and collectivephenomena. As a first application, we show that by preparing photons in pureFock states one can enhance pair correlations, and even control the criticalityand universality class of the superconducting phase transition by the choice ofthe number of photons. Our results also reveal that the thermal mixture of Fockstates regularises the strong pair correlations present in each of itscomponents, yielding the standard Bardeen-Cooper-Schrieffer criticality.

Controlling Collective Phenomena by Engineering the Quantum State of  Force Carriers: The Case of Photon-Mediated Superconductivity and its  Criticality