Jerzy Lewandowski
{{Short description|Polish physicist (1959–2024)}}
{{Use dmy dates|date=October 2024}}
{{Infobox scientist
| name = Jerzy Lewandowski
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| birth_name =
| birth_date = {{birth date|df=y|1959|09|15}}
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| death_date = {{death date and age|df=y|2024|10|08|1959|09|15}}
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| fields = Theoretical physics, general relativity, quantum gravity
| workplaces = University of Warsaw
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| doctoral_advisor = Andrzej Trautman
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| known_for = Loop quantum gravity
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Jerzy Lewandowski ({{IPA|pol|lɛvanˈdɔfskʲi|lang}}; 15 September 1959 – 8 October 2024) was a Polish theoretical physicist best known for his extensive research into general relativity and quantum gravity.
Biography
Lewandowski was professor of physics at the University of Warsaw.{{Cite web|title=Jerzy Lewandowski|url=https://scholar.google.com/citations?user=yRtnPg8AAAAJ&hl=en|access-date=5 March 2021|website=scholar.google.com}} He received his doctorate in Warsaw under Andrzej Trautman. He worked closely with Abhay Ashtekar at Pennsylvania State University in the 1990s on the mathematical justification of Loop Quantum Gravity (LQG). Among other things, he was at the Erwin Schrödinger Institute in Vienna and at the Max Planck Institute for Gravitational Physics in Golm near Potsdam.
He dealt with cosmological models and the entropy of black holes in the LQG. In 2010 he and his colleagues investigated a scalar field together with the gravitational field as part of LQG and were able to show the origin of a time as the ratio of the scalar to the gravitational field, and the quantization of the gravitational field.{{Cite journal|last=Domagała|first=Marcin|last2=Giesel|first2=Kristina|last3=Kamiński|first3=Wojciech|last4=Lewandowski|first4=Jerzy|date=18 November 2010|title=Gravity quantized: Loop quantum gravity with a scalar field|url=http://dx.doi.org/10.1103/physrevd.82.104038|journal=Physical Review D|volume=82|issue=10|doi=10.1103/physrevd.82.104038|issn=1550-7998|arxiv=1009.2445}}{{Cite web|title=The birth of time: Quantum loops describe the evolution of the Universe|url=https://www.sciencedaily.com/releases/2010/12/101216095014.htm|access-date=5 March 2021|website=ScienceDaily|language=en}}
Lewandowski died on 8 October 2024, at the age of 65.{{cite web |title=Prof. dr hab. Jerzy Lewandowski |url=https://www.fuw.edu.pl/home.html |website=fuw.edu.pl |access-date=10 October 2024}}
Publications
- With Ashtekar Background independent quantum gravity: a status report, Classical and Quantum Gravity, Band 21, 2004, R 53 [http://arxiv.org/abs/gr-qc/0404018 Arxiv]
- Abhay Ashtekar, Jerzy Lewandowski, Donald Marolf, Jose Mourao, Thomas Thiemann Quantization of diffeomorphism invariant theories of connections with local degrees of freedom, J. Mathematical Physics, Band 36, 1995, S. 6456–6493, [http://arxiv.org/abs/gr-qc/9504018 Arxiv]
- With Ashtekar Quantum theory of Gravity I. Area Operators, Classical and Quantum Gravity, Band 14, 1997, A 55-82, [http://arxiv.org/abs/gr-qc/9602046 Arxiv], Volume II: Volume Operators, [http://arxiv.org/abs/gr-qc/9711031 Arxiv]
- With Martin Bojowald, Ashtekar Mathematical structure of loop quantum cosmology, Adv.Theor.Math.Phys., Band 7, 2003, S. 233-268, [http://arxiv.org/abs/gr-qc/0304074 Arxiv]
References
External links
- [http://www.fuw.edu.pl/~lewand/ Professor Jerzy Lewandowski]
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Category:Polish relativity theorists
Category:Loop quantum gravity researchers
Category:Academic staff of the University of Warsaw
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