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DTSTAMP:20261024T221030Z
SUMMARY:Mathematical Physics Seminar (October 28th) – Ginestra Bianconi (
 QMUL) – Gravity from Entropy
DESCRIPTION:\nTitle: Gravity from Entropy\n\n\n\n\n\nAbstract: Gravity from
  Entropy (GfE) is a recently proposed theory deriving gravity from the GfE
  action coupling matter fields and spacetime geometry [1]. The fundamental
  idea is to associate the Lorentzian treat the spacetime metrics as  quan
 tum operators. The GfE Lagrangian is given by a novel Geometric Quantum Re
 lative Entropy (GQRE) between the spacetime metric and the metric induced 
 by matter fields and curvature. In doing so the GfE theory elevates the in
 terplay between matter and geometry as the fundamental aspect of gravity t
 o be reflected in its statistical mechanics and information theory action 
 (the GfE action).\nThe resulting modified Einstein equations recover Gener
 al Relativity with vanishing cosmological constant in the low-coupling reg
 ime. The theory introduces a new physical field\, the G-field\, associated
  with an emergent positive cosmological constant\, while preserving second
 -order field equations. Its extension\, Λ-Gravity from Entropy (ΛGfE) [2
 ]\, includes both a constant and a dynamical dark-energy contribution\, wi
 th potential implications for cosmological tensions.\nThe GfE framework al
 so provides a first-principles derivation of the area law associated to th
 e Schwarzschild  metric [3]. Moreover\, the thermodynamics of the GgE cos
 mology is consistent with the second law of thermodynamics while admits a 
 decreasing  GQRE\, potentially providing insights into the emergence of n
 on-uniform structures [4].\nThese results open new perspectives for invest
 igating gravity\, cosmology\, and the dark sector within the GfE field-the
 oretic framework\, whose quantization might provide further insights into 
 quantum gravity.\n\nReferences\n[1] G. Bianconi\, Physical Review D 111\, 
 066001 (2025).\n[2] G. Bianconi\, Physics Letters B\, 141014 (2026).\n[3] 
 G. Bianconi\, Entropy 27\, 266 (2025).\n[4] G. Bianconi\, Physical Review 
 D 114\, 024042 (2026).\n\n\n\n\n\nNote: This seminar will be happening in-
 person only. \n\n\nLocation: Huxley 130\, 15.00-16.00.\n
URL:https://www.imperial.ac.uk/events/215640/mathematical-physics-seminar-o
 ctober-28th-ginestra-bianconi-qmul-gravity-from-entropy/
DTSTART;TZID=Europe/London:20261028T150000
DTEND;TZID=Europe/London:20261028T160000
LOCATION:Huxley 130\, Huxley Building\, South Kensington Campus\, Imperial 
 College London\, London\, SW7 2AZ\, United Kingdom
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