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

Heat spontaneously flows from hot to cold in standard thermodynamics.However, the latter theory presupposes the absence of initial correlationsbetween interacting systems. We here experimentally demonstrate the reversal ofheat flow for two quantum correlated spins-1/2, initially prepared in localthermal states at different effective temperatures, employing a NuclearMagnetic Resonance setup. We observe a spontaneous energy flow from the cold tothe hot system. This process is enabled by a trade off between correlations andentropy that we quantify with information-theoretical quantities. These resultshighlight the subtle interplay of quantum mechanics, thermodynamics andinformation theory. They further provide a mechanism to control heat on themicroscale.

Reversing the direction of heat flow using quantum correlations