Effective Density Matrix for Vacua in Asymptotically Flat Gravity

Journal:: Physical Review Letters
Published:: 2026-05-27
DOI:: 10.1103/n48t-3dr1
Affiliations:: 2
Authors:: 3

Go to article

Institutions	Authors	Share
Walter Burke Institute for Theoretical Physics, United States of America (USA)	2.000000	0.67
University of Amsterdam (UvA), Netherlands	1.000000	0.33

Interested in Particle and High Energy Physics?

Research leaders

2026 Research Leaders

The Nature Index 2026 Research Leaders reveal the leading institutions and countries/territories in the natural sciences, health sciences, applied sciences and social sciences, according to their output in Nature Index journals in 2025.

Access free

Latest supplement

Nature Index 2026 Regenerative medicine

Regenerative medicine has the potential to transform the treatment of chronic and life-threatening diseases. But major challenges remain, such as overcoming immune rejection and ensuring that new therapies are developed using more inclusive data sets. In this supplement, we explore the discoveries that are driving the field, the barriers that could limit its progress, and the teams and institutions that are making their mark.

Access free

Nature Index 2026 Nanoscience and nanotechnology

From programmable RNA architectures to next-generation materials for energy and healthcare, researchers are harnessing the unusual properties of the nanoscale to tackle some of society's biggest challenges. This supplement explores the discoveries that are driving the field, the hurdles that remain and the institutions that are leading in nanoscience and nanotechnology research.

Access free

Research highlights of partners

Overexcitable neurons lead to autistic-like behaviours in mice

Institute for Basic Science (IBS)
30 Nov 2023
Anaesthetic could be effective against listlessness

ShanghaiTech University
31 Oct 2023
Helium magic extends to 74

University of La Laguna (ULL)
30 Sep 2023

Research highlights