DOI: 10.22661/AAPPSBL.2020.30.6.32 The 2020 Nobel Prize in Physics Prajval Shastri Black holes are chunks of space-time from which even light cannot escape. The idea of objects whose escape velocity equalled the speed of light emerged as early as in the eighteenth century. What discoveries then prompted the Nobel Prize in Physics of 2020? Half of the prize was for Roger Penrose's use of innovative topological methods and ground-breaking intuition as applied to massive gravitational collapse, an
Prajval Shastri
Award of Nobel Prize to Roger Penrose - an Appreciation of His Contributions to General Relativity James Vickers Mathematical Sciences and STAG Research Centre, University of Southampton, University Road, Southampton, SO17 1BJ, UK [Reproduced from the IUPAP NewsLetter] This year's Nobel Prize in Physics was awarded to Roger Penrose "for the discovery that black hole formation is a robust prediction of the general theory of relativity" and Reinhard Genzel and Andrea Ghez "for the discovery of a
James Vickers
DOI: 10.22661/AAPPSBL.2020.30.6.23 Unveiling the Darkest Secrets in the Universe: Notes on the 2020 Nobel Prize in Physics Zhiyuan Li1 & Feng Yuan2,3 1School of Astronomy and Space Science, Nanjing University, Nanjing 210023, China (lizy@nju.edu.cn) 2Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China (fyuan@shao.ac.cn) 3University of Chinese Academy of Sciences, Beijing 100049, China ABSTRACT The century-long story of black holes, started soon after the birth
Zhiyuan Li & Feng Yuan
DOI: 10.22661/AAPPSBL.2020.30.6.18 Roger Penrose and Black Holes Changhai Lu Science Writer ABSTRACT Black holes have been a hot topic in recent years partly due to the successful detections of gravitational waves from pair merges mostly involving black holes. It is therefore not too great a surprise that the 2020 Nobel Prize in Physics went to black hole researchers: the Royal Swedish Academy of Sciences announced on October 6 2020 that English mathematician and mathematical physicist Roger Pe
Changhai Lu
DOI: 10.22661/AAPPSBL.2020.30.6.10 Manipulation of Spin Current in 3d Magnets D. Qu1 and S. Y. Huang2 1Institute of Physics, Academia Sinica, Taipei, 11529, Taiwan 2Department of Physics, National Taiwan University, Taipei 10617, Taiwan ABSTRACT Because of spin-orbit coupling, spintronics has evolved from exploiting spin-polarized current to pure spin current, which delivers spin angular momentum more efficiently with fewer or no charge carriers, enabling spin-orbit torque magnetization switchi
D. Qu, S. Y. Huang
DOI: 10.22661/AAPPSBL.2020.30.6.02 Bootstrapping Cosmological Correlations Daniel Baumann1,2, Carlos Duaso Pueyo1, and Austin Joyce1 1 Institute of Physics, University of Amsterdam, Amsterdam, 1098 XH, The Netherlands 2 Department of Physics and Center for Theoretical Physics, National Taiwan University, Taipei 10617, Taiwan Department of Physics, Columbia University, New York, NY 10027, USA ABSTRACT Cosmology is famously an observational rather than an experimental science. No experimentalists
Daniel Baumann, Carlos Duaso Pueyo & Austin Joyce
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