With the exception of black holes, neutron stars are the densest objects in the universe. As their name suggests, neutron stars are mainly made of neutrons. However, our knowledge about the matter produced during the collision ...
General Physics
Nov 1, 2022
137
638
Researchers from the Institute of Theoretical Physics (ITP) of the Chinese Academy of Sciences (CAS) and Shanghai Jiao Tong University (SJTU) have found that granular matter (such as sand) and some black hole models display ...
Condensed Matter
Jun 2, 2022
2
108
Does time exist? The answer to this question may seem obvious: of course it does! Just look at a calendar or a clock.
General Physics
Apr 14, 2022
393
3900
Theoretical physicists routinely introduce fictitious particles and fields in their calculations, in view of completing a theory or simply to make it more elegant. A striking example concerns the magnetic monopole imagined ...
Quantum Physics
Mar 22, 2022
1
318
Black holes really are giant fuzzballs, a new study says.
Astronomy
Jan 4, 2022
42
289
The Nobel Prize in Physics for 2021 has been jointly awarded to Italy's Giorgio Parisi, Japan's Syukuro Manabe and Germany's Klaus Hasselmann for their "groundbreaking contributions to our understanding of complex systems".
General Physics
Oct 6, 2021
1
293
The S-matrix bootstrap is a numerical method that can be used to determine or constrain the scattering amplitudes of particles in quantum field theory using simple principles. Over the past few decades, some physicists have ...
The LIGO/Virgo/KAGRA Collaboration, a large group of researchers at different institutes worldwide, has recently set the strongest constraints on cosmic strings to date, using the Advanced LIGO/Virgo full O3 dataset. This ...
A paper by the Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU) Director Ooguri Hirosi and Project Researcher Matthew Dodelson on the string theoretical effects outside the black hole photon sphere ...
Optics & Photonics
Mar 29, 2021
6
3622
The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) is a gravitational-wave detector that monitors areas in the vicinity of Earth using a network of pulsars (i.e., clock-like stars). At the end of ...
