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

Sign and magnitude of the thermodynamic curvature provides empiricalinformation about the nature of microstructures of a general thermodynamicsystem. For charged black holes in AdS, thermodynamic curvature is positive forlarge charge or chemical potential, and diverges for extremal black holes,indicating strongly repulsive nature. We compute the thermodynamic curvature atlow temperatures, for charged black holes with AdS$_2$ near horizon geometry,and containing a zero temperature horizon radius $r_h$, in a spacetime whichasymptotically approaches $AdS_D$ (for $D>3$). In the semi-classical analysisat low temperatures, the curvature shows a novel crossover from negative topositive side, indicating the shift from attraction to repulsion dominatedregime near $T=0$, before diverging as $1/(\gamma T)$, where $\gamma$ is thecoefficient of leading low temperature correction to entropy. Accounting forquantum fluctuations, the curvature computed in the canonical ensemble ispositive, whereas the one in the grand canonical ensemble, continues to show acrossover from negative to positive side. Moreover, the divergence of curvatureat $T=0$ is cured irrespective of the ensemble used, resulting in a universalconstant.

Thermodynamic curvature of charged black holes with $AdS_2$ horizons