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
M. Del Grosso and N. Poplawski, "Torsional regularization of self-energy and bare mass of electron", Classical and Quantum Gravity41(22), 225001 (2024)
(abstract);
arXiv:2107.01612 [hep-th]
(pdf).
F. R. Benard Guedes and N. J. Poplawski, "General-relativistic wave-particle duality with torsion", Classical and Quantum Gravity41(6), 065011 (2024)
(abstract);
arXiv:2211.03234 [gr-qc]
(pdf).
N. J. Poplawski, "A nonsingular, anisotropic universe in a black hole with torsion and particle production", General Relativity and Gravitation53(2), 18 (2021);
arXiv:2007.11556 [gr-qc]
(pdf).
N. Poplawski, "Gravitational collapse of a fluid with torsion into a universe in a black hole", Journal of Experimental and Theoretical Physics132(3), 374-380 (2021);
arXiv:2008.02136 [gr-qc]
(pdf).
N. Poplawski, "Gravitational collapse of a fluid with torsion into a universe in a black hole", Zhurnal Eksperimental'noi i Teoreticheskoi Fiziki159(3), 448-456 (2021)
(abstract) (in Russian).
N. J. Poplawski, "Phantom dark energy from scalar-torsion coupling", Modern Physics Letters A35(40), 2050331 (2020)
(abstract);
arXiv:1512.09365 [gr-qc]
(pdf).
N. Poplawski, "Noncommutative momentum and torsional regularization", Foundations of Physics50(9), 900-923 (2020);
arXiv:1712.09997 [gr-qc]
(pdf).
J. L. Cubero and N. J. Poplawski, "Analysis of big bounce in Einstein-Cartan cosmology", Classical and Quantum Gravity37(2), 025011 (2020)
(abstract);
arXiv:1906.11824 [gr-qc]
(pdf).
N. J. Poplawski, "Non-particle dark matter from Hubble parameter", European Physical Journal C79(9), 734 (2019);
arXiv:1906.03947 [physics.gen-ph]
(pdf).
G. Unger and N. Poplawski, "Big bounce and closed universe from spin and torsion", Astrophysical Journal870(2), 78 (2019)
(abstract);
arXiv:1808.08327 [gr-qc]
(pdf).
N. Poplawski, "Primordial fluctuations of scale factor in closed Universe in Einstein-Cartan gravity", Modern Physics Letters A33(40), 1850236 (2018)
(abstract);
arXiv:1612.06292 [gr-qc]
(pdf).
N. Poplawski, "The simplest origin of the big bounce and inflation", International Journal of Modern Physics D27(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.
N. Poplawski, "Universe in a black hole in Einstein-Cartan gravity", Astrophysical Journal832(2), 96 (2016)
(abstract);
arXiv:1410.3881 [gr-qc]
(pdf).
S. Desai and N. J. Poplawski, "Non-parametric reconstruction of an inflaton potential from Einstein-Cartan-Sciama-Kibble gravity with particle production", Physics Letters B755, 183-189 (2016)
(abstract);
arXiv:1510.08834 [astro-ph.CO]
(pdf).
N. J. Poplawski, "The energy and momentum of the Universe", Classical and Quantum Gravity31(6), 065005 (2014)
(abstract);
arXiv:1305.6977 [gr-qc]
(pdf).
N. Poplawski, "Schwinger's variational principle in Einstein-Cartan gravity", Physical Review D89(2), 027501 (2014)
(abstract);
arXiv:1310.8014 [gr-qc]
(pdf).
N. Poplawski, "Affine theory of gravitation", General Relativity and Gravitation46(1), 1625 (2014);
arXiv:1203.0294 [gr-qc]
(pdf).
N. J. Poplawski, "Cosmological consequences of gravity with spin and torsion", Astronomical Review8(3), 108-115 (2013)
(abstract);
arXiv:1106.4859 [gr-qc]
(pdf).
N. Poplawski, "Nonsingular, big-bounce cosmology from spinor-torsion coupling", Physical Review D85(10), 107502 (2012)
(abstract);
arXiv:1111.4595 [gr-qc]
(pdf).
N. J. Poplawski, "Big bounce from spin and torsion", General Relativity and Gravitation44(4), 1007-1014 (2012);
arXiv:1105.6127 [astro-ph.CO]
(pdf).
N. J. Poplawski, "Four-fermion interaction from torsion as dark energy", General Relativity and Gravitation44(2), 491-499 (2012);
arXiv:1102.5667 [gr-qc]
(pdf).
N. J. Poplawski, "Matter-antimatter asymmetry and dark matter from torsion", Physical Review D83(8), 084033 (2011)
(abstract);
arXiv:1101.4012 [gr-qc]
(pdf).
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).
N. J. Poplawski, "Cosmology with torsion: An alternative to cosmic inflation", Physics Letters B694(3), 181-185 (2010)
(abstract);
Physics Letters B701(5), 672 (2011)
(erratum);
arXiv:1007.0587 [astro-ph.CO]
(pdf).
N. J. Poplawski, "Nonsingular Dirac particles in spacetime with torsion", Physics Letters B690(1), 73-77 (2010)
(abstract);
Physics Letters B727(4-5), 575 (2013)
(erratum);
arXiv:0910.1181 [gr-qc]
(pdf).
N. J. Poplawski, "Torsion as electromagnetism and spin", International Journal of Theoretical Physics49(7), 1481-1488 (2010);
arXiv:0905.4284 [gr-qc]
(pdf).
N. J. Poplawski, "Radial motion into an Einstein-Rosen bridge", Physics Letters B687(2-3), 110-113 (2010)
(abstract);
arXiv:0902.1994 [gr-qc]
(pdf).
N. J. Poplawski, "Variational formulation of Eisenhart's unified theory", International Journal of Modern Physics A24(20-21), 3975-3984 (2009)
(abstract);
arXiv:0803.4366 [gr-qc]
(pdf).
N. J. Poplawski, "A variational formulation of relativistic hydrodynamics", Physics Letters A373(31), 2620-2621 (2009)
(abstract);
arXiv:0806.2283 [gr-qc]
(pdf).
N. J. Poplawski, "Gravitation, electromagnetism and the cosmological constant in purely affine gravity", International Journal of Modern Physics D18(5), 809-829 (2009)
(abstract);
arXiv:gr-qc/0612193
(pdf).
N. J. Poplawski, "Geometrization of electromagnetism in tetrad-spin-connection gravity", Modern Physics Letters A24(6), 431-442 (2009)
(abstract);
Modern Physics Letters A26(16), 1243 (2011)
(erratum);
arXiv:0801.4797 [gr-qc]
(pdf).
N. J. Poplawski, "Gravitation, electromagnetism and cosmological constant in purely affine gravity", Foundations of Physics39(3), 307-330 (2009);
arXiv:gr-qc/0701176
(pdf).
N. J. Poplawski, "F(R) gravity in purely affine formulation", International Journal of Modern Physics A23(12), 1891-1901 (2008)
(abstract);
arXiv:0706.4474 [gr-qc]
(pdf).
N. J. Poplawski, "The Maxwell Lagrangian in purely affine gravity", International Journal of Modern Physics A23(3-4), 567-579 (2008)
(abstract);
arXiv:gr-qc/0702129
(pdf).
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).
N. J. Poplawski, "On the nonsymmetric purely affine gravity", Modern Physics Letters A22(36), 2701-2720 (2007)
(abstract);
arXiv:gr-qc/0610132
(pdf).
N. J. Poplawski, "The cosmic snap parameter in f(R) gravity", Classical and Quantum Gravity24(11), 3013-3020 (2007)
(abstract);
arXiv:gr-qc/0610133
(pdf).
N. J. Poplawski, "Propagating torsion in the Einstein frame", Journal of Mathematical Physics47(11), 112504 (2006)
(abstract);
arXiv:gr-qc/0605061
(pdf).
N. J. Poplawski, "Interacting dark energy in f(R) gravity", Physical Review D74(8), 084032 (2006)
(abstract);
arXiv:gr-qc/0607124
(pdf).
N. J. Poplawski, "The cosmic jerk parameter in f(R) gravity", Physics Letters B640(4), 135-137 (2006)
(abstract);
arXiv:gr-qc/0607021
(pdf).
N. J. Poplawski, "A Michelson interferometer in the field of a plane gravitational wave", Journal of Mathematical Physics47(7), 072501 (2006)
(abstract);
arXiv:gr-qc/0503066
(pdf).
N. J. Poplawski, "The present universe in the Einstein frame, metric-affine R+1/R gravity", Classical and Quantum Gravity23(15), 4819-4828 (2006)
(abstract);
arXiv:gr-qc/0511071
(pdf).
N. J. Poplawski, "Acceleration of the universe in the Einstein frame of a metric-affine f(R) gravity", Classical and Quantum Gravity23(6), 2011-2020 (2006)
(abstract);
arXiv:gr-qc/0510007
(pdf).
Conference Proceedings
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
N. Poplawski, "Gravitational deflection of light in interior Schwarzschild metric" (2024)
(pdf);
arXiv:2407.10248 [gr-qc].
N. Poplawski, "Black holes in the expanding Universe" (2024)
(pdf);
arXiv:2405.16673 [gr-qc].
N. Poplawski and M. Del Grosso, "The origin of the Born rule from spacetime averaging" (2021)
(pdf);
arXiv:2110.06392 [quant-ph].
N. Poplawski, "Relativistic wave-particle duality for spinors" (2021)
(pdf);
arXiv:2101.04212 [gr-qc].
N. J. Poplawski, "Black Hole Genesis and origin of cosmic acceleration" (2019)
(pdf);
arXiv:1912.02173 [gr-qc].
N. Poplawski, "Black Hole Genesis and origin of inertia" (2019)
(pdf);
arXiv:1910.10819 [physics.pop-ph].
N. Poplawski, "Invariant temperature of a moving body" (2019)
(pdf);
arXiv:1902.05536 [physics.class-ph].
N. Poplawski, "Torsional regularization of vertex function" (2018)
(pdf);
arXiv:1807.07068 [hep-th].
N. Poplawski, "Intrinsic spin requires gravity with torsion and curvature" (2013)
(pdf);
arXiv:1304.0047 [gr-qc].
N. Poplawski, "Gravity with spin excludes fermionic strings" (2012)
(pdf);
arXiv:1209.5772 [hep-th].
N. J. Poplawski, "Thermal fluctuations in Einstein-Cartan-Sciama-Kibble-Dirac bouncing cosmology" (2011)
(pdf);
arXiv:1201.0316 [astro-ph.CO].
N. J. Poplawski, "Mass of the universe in a black hole" (2011)
(pdf);
arXiv:1110.5019 [astro-ph.CO].
N. J. Poplawski, "On the polarization of nonlinear gravitational waves" (2011)
(pdf);
arXiv:1110.0051 [gr-qc].
N. J. Poplawski, "A Maxwell field minimally coupled to torsion" (2011)
(pdf);
arXiv:1108.6100 [gr-qc].
N. J. Poplawski, "Conformal time in a black-hole universe with torsion" (2011)
(pdf);
arXiv:1108.0211 [gr-qc].
N. J. Poplawski, "Neutral-meson oscillations with torsion" (2011)
(pdf);
arXiv:1105.0102 [hep-ph].
N. J. Poplawski, "On the mass of the Universe born in a black hole" (2011)
(pdf);
arXiv:1103.4192 [astro-ph.CO].
N. J. Poplawski, "Einstein-Cartan gravity excludes extra dimensions" (2010)
(pdf);
arXiv:1001.4324 [hep-th].
N. J. Poplawski, "The universe as a black hole in isotropic coordinates" (2009)
(pdf);
arXiv:0901.0215 [gr-qc].
N. J. Poplawski, "Geometrical formulation of classical electromagnetism" (2008)
(pdf);
arXiv:0802.4453 [gr-qc].
N. J. Poplawski, "Conservation laws for a general Lorentz connection" (2007)
(pdf);
arXiv:0711.2341 [gr-qc].
N. J. Poplawski, "Covariant differentiation of spinors for a general affine connection" (2007)
(pdf);
arXiv:0710.3982 [gr-qc].
N. J. Poplawski, "A unified, purely affine theory of gravitation and electromagnetism" (2007)
(pdf);
arXiv:0705.0351 [gr-qc].
N. J. Poplawski, "A Lagrangian description of interacting dark energy" (2006)
(pdf);
arXiv:gr-qc/0608031.
N. J. Poplawski, "Gauge invariance and massive torsionic scalar field" (2006)
(pdf);
arXiv:gr-qc/0604125.
PARTICLE AND NUCLEAR PHYSICS
Refereed Articles
N. J. Poplawski, A. P. Szczepaniak, and J. T. Londergan, "Final state interactions in decays of the exotic pi1 meson", Physical Review D71(5), 056003 (2005)
(abstract);
arXiv:hep-ph/0501035
(pdf).
N. J. Poplawski, A. P. Szczepaniak, and J. T. Londergan, "Towards a relativistic description of exotic meson decays", Physical Review D71(1), 016004 (2005)
(abstract);
arXiv:hep-ph/0408197
(pdf).
Conference Proceedings
N. Poplawski, "A relativistic description of hadronic decays of the meson pi1", AIP Conference Proceedings717, 456-461 (2004)
(abstract);
arXiv:hep-ph/0507239
(pdf).