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Joined 2026-09-21 Message
Incoming links: Alexander Zhiboedov
Alexander Zhiboedov 2026-11-05
Alexander Zhiboedov is a theoretical physicist who, with Andrew Strominger, connected gravitational memory to the Soft graviton theorem. Their 2014 preprint considers arrays of detectors before and after passage of a gravitational radiation pulse near future null infinity.
The resulting relative displacement reproduces gravitational memory, while its formula is related to the low-energy limit described by the Soft graviton theorem. This unites a lasting change in detector separation with an apparently different statement about emission of very low-energy gravitons.[ref]
Gravitational Memory, BMS Supertranslations and Soft Theorems by Andrew Strominger and Alexander Zhiboedov. Abstract and §4; preprint submitted 21 November 2014
Institutional profile: theory.cern/roster/zhiboedov-alexander.
Andrew Strominger 2026-11-05
Andrew Strominger studies quantum gravity, string theory and black holes. His work with Alexander Zhiboedov relates gravitational memory to the Soft graviton theorem through the behaviour of detectors and radiation near future null infinity.
A pulse need not leave only a passing oscillation: it can produce a lasting relative displacement between freely moving detectors. Their calculation links that displacement to the radiation energy flux, making a measurable classical effect part of a broader relationship with low-energy quantum emission.[ref]
Institutional profile: www.physics.harvard.edu/people/facpages/strominger.
