Fourth Hermann Minkowski Meeting on the Foundations of Spacetime Physics


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Conference program


The conference program will be posted on 20 June 2025.


Arrival: September 14, 2025
Departure: September 19, 2025

For information on how to get from the Varna airport to Albena see section "Taxi from Varna Airport to Albena" in the link Useful Information on the left.


What is below is the program of the third Minkowski meeting.


NOTE: Arriving abstracts will be considered if there are available slots in the program.


There will be a book exhibition during the meeting by

     

After the afternoon talks on Thursday there will be an organized visit to two must-see ancient archeological sites near Albena (part of the UNESCO World Cultural Heritage) - the National Archaeological Reserves Kaliakra or Yailata.

In addition to talks, special free-discussion time (after 16:00 in the afternoons) is included in the program to stimulate more informal discussions among the participants. For this reason we encourage interested colleagues to attend the meeting even if they do not plan to give a talk.


Only laptops and projectors for the presentations will be available.

If you are not bringing your laptop, make sure that your presentation is in PowerPoint (Windows) or PDF; there will be no Mac laptop for KeyNote files. If your presentation is created by using LibreOffice, OpenOffice or any other software, make sure that you convert it to one of the two formats supported at the meeting.


Talks (in-person only) - 25 min + 5 min questions


Monday, September 11, 2025

9:00 - Registration

9:25 - 9:30 Welcome Remarks

Chair: Eric Ling, Department of Mathematical Sciences, University of Copenhagen

9:30-10:00 - Orfeu Bertolami, Universidade do Porto Rua do Campo Alegre, On time crystals

10:00-10:30 - Ovidiu Cristinel Stoica, Horia Hulubei National Institute for Physics and Nuclear Engineering, Department of Theoretical Physics, Sentient observers and the ontology of spacetime

10:30-11:00 - Coffee break and free discussions

11:00-11:30 - Patrick Das Gupta, Department of Physics and Astrophysics, University of Delhi, Torsion and Chern-Simons gravity in 4D space-times from a Geometrodynamical four-form

11:30-12:00 - Seokcheon Lee, Sungkyunkwan University, An alternative solution for the Milne Model

12:00-14:00 - Lunch

Chair: Valentin Boyanov, CENTRA, Departamento de Física, Instituto Superior Técnico, Universidade de Lisboa

14:00-14:30 - Piotr Ogonowski, Kozminski University, Relationship of the Metric Tensor and the Field Tensor - the Structure of Spacetime

14:30-15:00 - Coffee break and free discussions

15:00-15:30 - Durmuş Demir, Sabancı University, Poincaré Breaking in Flat Minkowski and Gauge-Restoring Emergent Gravity

15:30-16:00 - Raghvendra Singh, Institute of Mathematical Sciences, Homi Bhabha National Institute, Euclidean Action and Spacetime thermodynamics


Tuesday, September 12, 2025

Chair: Piotr Ogonowski, Kozminski University

9:00-9:30 - Asher Yahalom, Center for Astrophysics, Geophysics, and Space Sciences (AGASS), Ariel University, Hermann Minkowski's Spacetime and the "Dark Matter" Problem

9:30-10:00 - Tomohiro Matsuda, Laboratory of Physics, Saitama Institute of Technology, Schwinger-Unruh-Hawking radiation on manifolds

10:00-10:30 - Sanjeeda Sultana, Department of Mathematics, Amity University Kolkata, An investigation of the logotropic equation of state for the Chaplygin gas, a generalized holographic model, and thermodynamic analysis using scalar fields

10:30-11:00 - Coffee break and free discussions

11:00-11:30 - Daniel Grimmer, University of Oxford, Spacetime Redescription via the ISE Methodology

11:30-12:00 - Damian Luty, Poznań University of Economics, Spacetime realism against super-substantivalism

12:00-14:00 - Lunch

Chair: Patrick Das Gupta, Department of Physics and Astrophysics, University of Delhi

14:00-14:30 - Bruce M. Boman, Department of Mathematical Sciences, University of Delaware, Modeling the Progression of Time as an Autocatalytic Reaction

14:30-15:00 - Coffee break and free discussions

15:00-16:00 - Panel Discussion on Open Questions in Spacetime Physics


Wednesday, September 13, 20223

Chair: Sanjeeda Sultana, Department of Mathematics, Amity University Kolkata

9:00-9:30 - Valentin Boyanov, CENTRA, Departamento de Física, Instituto Superior Técnico, Universidade de Lisboa, Black hole inner horizon instability in semiclassical gravity

9:30-10:00 - Sebastian Murk, Okinawa Institute of Science and Technology, Nomen non est omen: why it is too soon to identify ultra-compact objects as black holes

10:00-10:30 - Vesselin Petkov, Minkowski Institute, Montreal, On the asymptomatic formation of black holes

10:30-11:00 - Coffee break and free discussions

11:00-11:30 - Stuart Kauffman, University of Pennsylvania, Did the Universe Construct Itself?

11:30-12:00 - Archan S. Majumdar, S. N. Bose National Centre for Basic Sciences, Backreaction induced modification in spacetime structure: current acceleration and gravitational wave propagation

12:00-14:00 - Lunch

Chair: Damian Luty, Poznań University of Economics

14:00-14:30 - Andrzej Radosz, Department of Quantum Technologies, Wroclaw University of Science and Technology, Dynamics of a scalar field quantized in curved spacetimes

14:30-15:00 - Coffee break and free discussions

15:00-16:00 - Panel Discussion on the Nature of Gravitation


Thursday, September 14, 2025

Chair: Sebastian Murk, Okinawa Institute of Science and Technology

9:00-9:30 - Annachiara Piubello, Department of Mathematics, University of Miami, Mass and Riemannian Polyhedra

9:30-10:00 - Eric Ling, Department of Mathematical Sciences, University of Copenhagen, On the cosmological constant appearing as an initial condition for nonhomogeneous inflationary models

10:00-10:30 - Guido J.M. Verstraeten, Satakunta University of Applied Sciences, Concealed Mass and Gravitation within Whitehead'Satakunta University of Applied Sciences conception of observability in space and time suggest a Big Bounce Universe

10:30-11:00 - Coffee break and free discussions

11:00-12:00 - Panel Discussion on the Nature of Black Holes

12:00-14:00 - Lunch

Chair: Durmuş Demir, Sabancı University

14:00-14:30 - Robert Monjo, Departament of Algebra, Geometry and Topology, Complutense University of Madrid, Hyperconical universe and finite spacetime

14:30-15:00 - Coffee break and free discussions

15:00-16:00 - Panel Discussion on Dark Matter and Dark Energy



If needed - Guidelines for Session Chairs: APS (and eventually - IMRA)



Conference room (220 seats):