Nikodem Poplawski

Selected Publications

• "Torsional regularization of self-energy and bare mass of electron", with Michael Del Grosso, Class. Quantum Grav. 41, 225001 (2024)
  
• "General-relativistic wave-particle duality with torsion", with Francisco Guedes, Class. Quantum Grav. 41, 065011 (2024)
  
• "Gravitational collapse of a fluid with torsion into a universe in a black hole", J. Exp. Theor. Phys. 132, 374 (2021)
  
• "Noncommutative momentum and torsional regularization", Found. Phys. 50, 900 (2020)
  
• "Universe in a black hole in Einstein-Cartan gravity", Astrophys. J. 832, 96 (2016)
  
• "Schwinger's variational principle in Einstein-Cartan gravity", Phys. Rev. D 89, 027501 (2014)
  
• "Nonsingular, big-bounce cosmology from spinor-torsion coupling", Phys. Rev. D 85, 107502 (2012)
  
• "Matter-antimatter asymmetry and dark matter from torsion", Phys. Rev. D 83, 084033 (2011)
  
• "Cosmology with torsion: An alternative to cosmic inflation", Phys. Lett. B 694, 181 (2010); 701, 672 (2011)
  
• "Nonsingular Dirac particles in spacetime with torsion", Phys. Lett. B 690, 73 (2010); 727, 575 (2013)
  
• "Radial motion into an Einstein-Rosen bridge", Phys. Lett. B 687, 110 (2010)
  
• "Classical Physics: Spacetime and Fields", arXiv:0911.0334 [gr-qc] (2009, 2020, 2024)

Complete List of Publications

Books

N. Poplawski, "CLASSICAL PHYSICS: SPACETIME AND FIELDS" (2009, 2020, 2024) (pdf); arXiv:0911.0334 [gr-qc]. Listed in The Net Advance of Physics under General Relativity and Field Theory.

Book Chapters

N. Poplawski, "Gravitational Collapse with Torsion and Universe in a Black Hole", in: Regular Black Holes. Towards a New Paradigm of Gravitational Collapse, C. Bambi (ed.), pp. 485-499 (Springer, Singapore, 2023) (abstract); arXiv:2307.12190 [gr-qc] (pdf).

Refereed Articles
1. M. Del Grosso and N. Poplawski, "Torsional regularization of self-energy and bare mass of electron", Classical and Quantum Gravity 41(22), 225001 (2024) (abstract); arXiv:2107.01612 [hep-th] (pdf).
   
2. F. R. Benard Guedes and N. J. Poplawski, "General-relativistic wave-particle duality with torsion", Classical and Quantum Gravity 41(6), 065011 (2024) (abstract); arXiv:2211.03234 [gr-qc] (pdf).
   
3. N. J. Poplawski, "A nonsingular, anisotropic universe in a black hole with torsion and particle production", General Relativity and Gravitation 53(2), 18 (2021); arXiv:2007.11556 [gr-qc] (pdf).
   
4. N. Poplawski, "Gravitational collapse of a fluid with torsion into a universe in a black hole", Journal of Experimental and Theoretical Physics 132(3), 374-380 (2021); arXiv:2008.02136 [gr-qc] (pdf).
   
5. N. Poplawski, "Gravitational collapse of a fluid with torsion into a universe in a black hole", Zhurnal Eksperimental'noi i Teoreticheskoi Fiziki 159(3), 448-456 (2021) (abstract) (in Russian).
   
6. N. J. Poplawski, "Phantom dark energy from scalar-torsion coupling", Modern Physics Letters A 35(40), 2050331 (2020) (abstract); arXiv:1512.09365 [gr-qc] (pdf).
   
7. N. Poplawski, "Noncommutative momentum and torsional regularization", Foundations of Physics 50(9), 900-923 (2020); arXiv:1712.09997 [gr-qc] (pdf).
   
8. J. L. Cubero and N. J. Poplawski, "Analysis of big bounce in Einstein-Cartan cosmology", Classical and Quantum Gravity 37(2), 025011 (2020) (abstract); arXiv:1906.11824 [gr-qc] (pdf).
   
9. N. J. Poplawski, "Non-particle dark matter from Hubble parameter", European Physical Journal C 79(9), 734 (2019); arXiv:1906.03947 [physics.gen-ph] (pdf).
   
10. G. Unger and N. Poplawski, "Big bounce and closed universe from spin and torsion", Astrophysical Journal 870(2), 78 (2019) (abstract); arXiv:1808.08327 [gr-qc] (pdf).
    
11. N. Poplawski, "Primordial fluctuations of scale factor in closed Universe in Einstein-Cartan gravity", Modern Physics Letters A 33(40), 1850236 (2018) (abstract); arXiv:1612.06292 [gr-qc] (pdf).
    
12. N. Poplawski, "The simplest origin of the big bounce and inflation", International Journal of Modern Physics D 27(14), 1847020 (2018) (abstract); arXiv:1801.08076 [physics.pop-ph] (pdf). Selected for Honorable Mention in Awards for Essays on Gravitation for 2018 by Gravity Research Foundation.
    
13. N. Poplawski, "Universe in a black hole in Einstein-Cartan gravity", Astrophysical Journal 832(2), 96 (2016) (abstract); arXiv:1410.3881 [gr-qc] (pdf).
    
14. S. Desai and N. J. Poplawski, "Non-parametric reconstruction of an inflaton potential from Einstein-Cartan-Sciama-Kibble gravity with particle production", Physics Letters B 755, 183-189 (2016) (abstract); arXiv:1510.08834 [astro-ph.CO] (pdf).
    
15. N. J. Poplawski, "The energy and momentum of the Universe", Classical and Quantum Gravity 31(6), 065005 (2014) (abstract); arXiv:1305.6977 [gr-qc] (pdf).
    
16. N. Poplawski, "Schwinger's variational principle in Einstein-Cartan gravity", Physical Review D 89(2), 027501 (2014) (abstract); arXiv:1310.8014 [gr-qc] (pdf).
    
17. N. Poplawski, "Affine theory of gravitation", General Relativity and Gravitation 46(1), 1625 (2014); arXiv:1203.0294 [gr-qc] (pdf).
    
18. N. J. Poplawski, "Cosmological consequences of gravity with spin and torsion", Astronomical Review 8(3), 108-115 (2013) (abstract); arXiv:1106.4859 [gr-qc] (pdf).
    
19. N. Poplawski, "Nonsingular, big-bounce cosmology from spinor-torsion coupling", Physical Review D 85(10), 107502 (2012) (abstract); arXiv:1111.4595 [gr-qc] (pdf).
    
20. N. J. Poplawski, "Big bounce from spin and torsion", General Relativity and Gravitation 44(4), 1007-1014 (2012); arXiv:1105.6127 [astro-ph.CO] (pdf).
    
21. N. J. Poplawski, "Four-fermion interaction from torsion as dark energy", General Relativity and Gravitation 44(2), 491-499 (2012); arXiv:1102.5667 [gr-qc] (pdf).
    
22. N. J. Poplawski, "Matter-antimatter asymmetry and dark matter from torsion", Physical Review D 83(8), 084033 (2011) (abstract); arXiv:1101.4012 [gr-qc] (pdf).
    
23. N. J. Poplawski, "Cosmological constant from quarks and torsion", Annalen der Physik (Berlin) 523(4), 291-295 (2011) (abstract); arXiv:1005.0893 [gr-qc] (pdf).
    
24. N. J. Poplawski, "Cosmology with torsion: An alternative to cosmic inflation", Physics Letters B 694(3), 181-185 (2010) (abstract); Physics Letters B 701(5), 672 (2011) (erratum); arXiv:1007.0587 [astro-ph.CO] (pdf).
    
25. N. J. Poplawski, "Nonsingular Dirac particles in spacetime with torsion", Physics Letters B 690(1), 73-77 (2010) (abstract); Physics Letters B 727(4-5), 575 (2013) (erratum); arXiv:0910.1181 [gr-qc] (pdf).
    
26. N. J. Poplawski, "Torsion as electromagnetism and spin", International Journal of Theoretical Physics 49(7), 1481-1488 (2010); arXiv:0905.4284 [gr-qc] (pdf).
    
27. N. J. Poplawski, "Radial motion into an Einstein-Rosen bridge", Physics Letters B 687(2-3), 110-113 (2010) (abstract); arXiv:0902.1994 [gr-qc] (pdf).
    
28. N. J. Poplawski, "Variational formulation of Eisenhart's unified theory", International Journal of Modern Physics A 24(20-21), 3975-3984 (2009) (abstract); arXiv:0803.4366 [gr-qc] (pdf).
    
29. N. J. Poplawski, "A variational formulation of relativistic hydrodynamics", Physics Letters A 373(31), 2620-2621 (2009) (abstract); arXiv:0806.2283 [gr-qc] (pdf).
    
30. N. J. Poplawski, "Gravitation, electromagnetism and the cosmological constant in purely affine gravity", International Journal of Modern Physics D 18(5), 809-829 (2009) (abstract); arXiv:gr-qc/0612193 (pdf).
    
31. N. J. Poplawski, "Geometrization of electromagnetism in tetrad-spin-connection gravity", Modern Physics Letters A 24(6), 431-442 (2009) (abstract); Modern Physics Letters A 26(16), 1243 (2011) (erratum); arXiv:0801.4797 [gr-qc] (pdf).
    
32. N. J. Poplawski, "Gravitation, electromagnetism and cosmological constant in purely affine gravity", Foundations of Physics 39(3), 307-330 (2009); arXiv:gr-qc/0701176 (pdf).
    
33. N. J. Poplawski, "F(R) gravity in purely affine formulation", International Journal of Modern Physics A 23(12), 1891-1901 (2008) (abstract); arXiv:0706.4474 [gr-qc] (pdf).
    
34. N. J. Poplawski, "The Maxwell Lagrangian in purely affine gravity", International Journal of Modern Physics A 23(3-4), 567-579 (2008) (abstract); arXiv:gr-qc/0702129 (pdf).
    
35. N. J. Poplawski, "Massive vectors from projective invariance breaking", Annales de la Fondation Louis de Broglie (France) 32(2-3), 335-353 (2007) (abstract), in Special issue on torsion, ed. V. Dvoeglazov; arXiv:0709.3652 [gr-qc] (pdf).
    
36. N. J. Poplawski, "On the nonsymmetric purely affine gravity", Modern Physics Letters A 22(36), 2701-2720 (2007) (abstract); arXiv:gr-qc/0610132 (pdf).
    
37. N. J. Poplawski, "The cosmic snap parameter in f(R) gravity", Classical and Quantum Gravity 24(11), 3013-3020 (2007) (abstract); arXiv:gr-qc/0610133 (pdf).
    
38. N. J. Poplawski, "Propagating torsion in the Einstein frame", Journal of Mathematical Physics 47(11), 112504 (2006) (abstract); arXiv:gr-qc/0605061 (pdf).
    
39. N. J. Poplawski, "Interacting dark energy in f(R) gravity", Physical Review D 74(8), 084032 (2006) (abstract); arXiv:gr-qc/0607124 (pdf).
    
40. N. J. Poplawski, "The cosmic jerk parameter in f(R) gravity", Physics Letters B 640(4), 135-137 (2006) (abstract); arXiv:gr-qc/0607021 (pdf).
    
41. N. J. Poplawski, "A Michelson interferometer in the field of a plane gravitational wave", Journal of Mathematical Physics 47(7), 072501 (2006) (abstract); arXiv:gr-qc/0503066 (pdf).
    
42. N. J. Poplawski, "The present universe in the Einstein frame, metric-affine R+1/R gravity", Classical and Quantum Gravity 23(15), 4819-4828 (2006) (abstract); arXiv:gr-qc/0511071 (pdf).
    
43. N. J. Poplawski, "Acceleration of the universe in the Einstein frame of a metric-affine f(R) gravity", Classical and Quantum Gravity 23(6), 2011-2020 (2006) (abstract); arXiv:gr-qc/0510007 (pdf).
    
    Conference Proceedings

44. N. Poplawski, "Universe in a black hole with spin and torsion", in: Proceedings of the Sixteenth Marcel Grossmann Meeting on General Relativity, R. Ruffini and G. Vereshchagin (ed.), part B, pp. 1327-1336 (World Scientific, Singapore, 2023) (abstract).

Preprints
1. N. Poplawski, "Gravitational deflection of light in interior Schwarzschild metric" (2024) (pdf); arXiv:2407.10248 [gr-qc].
   
2. N. Poplawski, "Black holes in the expanding Universe" (2024) (pdf); arXiv:2405.16673 [gr-qc].
   
3. N. Poplawski and M. Del Grosso, "The origin of the Born rule from spacetime averaging" (2021) (pdf); arXiv:2110.06392 [quant-ph].
   
4. N. Poplawski, "Relativistic wave-particle duality for spinors" (2021) (pdf); arXiv:2101.04212 [gr-qc].
   
5. N. J. Poplawski, "Black Hole Genesis and origin of cosmic acceleration" (2019) (pdf); arXiv:1912.02173 [gr-qc].
   
6. N. Poplawski, "Black Hole Genesis and origin of inertia" (2019) (pdf); arXiv:1910.10819 [physics.pop-ph].
   
7. N. Poplawski, "Invariant temperature of a moving body" (2019) (pdf); arXiv:1902.05536 [physics.class-ph].
   
8. N. Poplawski, "Torsional regularization of vertex function" (2018) (pdf); arXiv:1807.07068 [hep-th].
   
9. N. Poplawski, "Intrinsic spin requires gravity with torsion and curvature" (2013) (pdf); arXiv:1304.0047 [gr-qc].
   
10. N. Poplawski, "Gravity with spin excludes fermionic strings" (2012) (pdf); arXiv:1209.5772 [hep-th].
    
11. N. J. Poplawski, "Thermal fluctuations in Einstein-Cartan-Sciama-Kibble-Dirac bouncing cosmology" (2011) (pdf); arXiv:1201.0316 [astro-ph.CO].
    
12. N. J. Poplawski, "Mass of the universe in a black hole" (2011) (pdf); arXiv:1110.5019 [astro-ph.CO].
    
13. N. J. Poplawski, "On the polarization of nonlinear gravitational waves" (2011) (pdf); arXiv:1110.0051 [gr-qc].
    
14. N. J. Poplawski, "A Maxwell field minimally coupled to torsion" (2011) (pdf); arXiv:1108.6100 [gr-qc].
    
15. N. J. Poplawski, "Conformal time in a black-hole universe with torsion" (2011) (pdf); arXiv:1108.0211 [gr-qc].
    
16. N. J. Poplawski, "Neutral-meson oscillations with torsion" (2011) (pdf); arXiv:1105.0102 [hep-ph].
    
17. N. J. Poplawski, "On the mass of the Universe born in a black hole" (2011) (pdf); arXiv:1103.4192 [astro-ph.CO].
    
18. N. J. Poplawski, "Einstein-Cartan gravity excludes extra dimensions" (2010) (pdf); arXiv:1001.4324 [hep-th].
    
19. N. J. Poplawski, "The universe as a black hole in isotropic coordinates" (2009) (pdf); arXiv:0901.0215 [gr-qc].
    
20. N. J. Poplawski, "Geometrical formulation of classical electromagnetism" (2008) (pdf); arXiv:0802.4453 [gr-qc].
    
21. N. J. Poplawski, "Conservation laws for a general Lorentz connection" (2007) (pdf); arXiv:0711.2341 [gr-qc].
    
22. N. J. Poplawski, "Covariant differentiation of spinors for a general affine connection" (2007) (pdf); arXiv:0710.3982 [gr-qc].
    
23. N. J. Poplawski, "A unified, purely affine theory of gravitation and electromagnetism" (2007) (pdf); arXiv:0705.0351 [gr-qc].
    
24. N. J. Poplawski, "A Lagrangian description of interacting dark energy" (2006) (pdf); arXiv:gr-qc/0608031.
    
25. N. J. Poplawski, "Gauge invariance and massive torsionic scalar field" (2006) (pdf); arXiv:gr-qc/0604125.
    
    

Refereed Articles
1. N. J. Poplawski, A. P. Szczepaniak, and J. T. Londergan, "Final state interactions in decays of the exotic pi1 meson", Physical Review D 71(5), 056003 (2005) (abstract); arXiv:hep-ph/0501035 (pdf).
   
2. N. J. Poplawski, A. P. Szczepaniak, and J. T. Londergan, "Towards a relativistic description of exotic meson decays", Physical Review D 71(1), 016004 (2005) (abstract); arXiv:hep-ph/0408197 (pdf).
   
   Conference Proceedings

3. N. Poplawski, "A relativistic description of hadronic decays of the meson pi1", AIP Conference Proceedings 717, 456-461 (2004) (abstract); arXiv:hep-ph/0507239 (pdf).