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Regular Schwarzschild black holes and cosmological models

Roberto Casadio
(
- U. Bologna (main)
)
,
Alexander Kamenshchik
(
- Bologna U.
)
,
Jorge Ovalle
(
- Silesian U., Czech Republic
)

(Feb 19, 2025)

Published in:
- Phys.Rev.D 111 (2025) 6, 064036
•
e-Print:
- 2502.13627 [gr-qc]

pdfDOI

reference search0 citations

Again about singularity crossing in gravitation and cosmology

Alexander Kamenshchik

(Nov 2, 2024)

Published in:
- Gen.Rel.Grav. 56 (2024) 11, 133
•
e-Print:
- 2411.01917 [gr-qc]

pdfDOI

reference search1 citation

IR finite correlation functions in de Sitter space, a smooth massless limit, and an autonomous equation

Alexander Kamenshchik
(
- Bologna U. and
- INFN, Bologna
)
,
Polina Petriakova
(
- Bologna U. and
- INFN, Bologna
)

(Oct 21, 2024)

e-Print:
- 2410.16226 [hep-th]

pdf

reference search0 citations

Cosmology from Schwarzschild black hole revisited

Roberto Casadio
(
- Bologna U.
)
,
Alexander Kamenshchik
(
- Bologna U.
)
,
Jorge Ovalle
(
- Tarapaca U. and
- Silesian U., Czech Republic
)

(Jul 19, 2024)

Published in:
- Phys.Rev.D 110 (2024) 4, 044001
•
e-Print:
- 2407.14130 [gr-qc]

pdfDOI

reference search6 citations

Superpotential method and the amplification of inflationary perturbations

Alexander Yu. Kamenshchik
(
- Landau Inst. and
- INFN, Bologna and
- Bologna U., Dept. Astron. and
- U. Bologna, DIFA
)
,
Ekaterina O. Pozdeeva
(
- SINP, Moscow
)
,
Augustin Tribolet
(
- INFN, Bologna and
- U. Bologna, DIFA and
- Liege U.
)
,
Alessandro Tronconi
(
- INFN, Bologna and
- U. Bologna, DIFA
)
,
Giovanni Venturi
(
- INFN, Bologna and
- U. Bologna, DIFA
)

et al.

(Jun 28, 2024)

Published in:
- Phys.Rev.D 110 (2024) 10, 104011
•
e-Print:
- 2406.19762 [gr-qc]

pdfDOI

reference search4 citations

Regular Friedmann Universes and Matter Transformations

Alexander Kamenshchik
(
- Bologna U. and
- INFN, Bologna
)
,
Polina Petriakova
(
- Bologna U. and
- INFN, Bologna
)

(Mar 13, 2024)

Published in:
- Universe 10 (2024) 3, 137,
- Universe 10 (2024) 137
•
e-Print:
- 2403.08400 [gr-qc]

DOI

reference search5 citations

From black hole mimickers to black holes

(Jan 8, 2024)

Published in:
- Phys.Rev.D 109 (2024) 2, 024042
•
e-Print:
- 2401.03980 [gr-qc]

pdfDOI

reference search7 citations

Mapping solutions in nonmetricity gravity: Investigating cosmological dynamics in conformal equivalent theories

Nikolaos Dimakis
(
- Frontera U.
)
,
Kevin J. Duffy
(
- DUT, Durban
)
,
Alex Giacomini
(
- Chile Austral U., Valdivia
)
,
Alexander Yu. Kamenshchik
(
- Bologna U. and
- INFN, Bologna
)
,
Genly Leon
(
- Catolica del Norte U. and
- DUT, Durban
)

et al.

(Dec 18, 2023)

Published in:
- Phys.Dark Univ. 44 (2024) 101436
•
e-Print:
- 2312.11208 [gr-qc]

pdfDOI

reference search6 citations

Tensions with cosmological singularities: Should we try to avoid their appearance?

(Nov 8, 2023)

Published in:
- PoS CORFU2022 (2023) 198
•
Contribution to:
- CORFU2022
  , 198

pdfDOI

reference search0 citations

Looking for Carroll Particles in the Two-Time Spacetime

#10

A. Kamenshchik
(
- Bologna U. and
- INFN, Bologna
)
,
F. Muscolino
(
- Insubria U., Como
)

(Oct 29, 2023)

Published in:
- Ukr.J.Phys. 69 (2024) 7, 448,
- Phys.Rev.D 109 (2024) 2, 2
•
e-Print:
- 2310.19050 [hep-th]

pdf

reference search5 citations

Bianchi cosmologies, magnetic fields, and singularities

#11

Roberto Casadio
(
- Bologna U. and
- INFN, Bologna
)
,
Alexander Kamenshchik
(
- Bologna U. and
- INFN, Bologna
)
,
Panagiotis Mavrogiannis
(
- Aristotle U., Thessaloniki
)
,
Polina Petriakova
(
- Bologna U. and
- INFN, Bologna
)

(Jul 24, 2023)

Published in:
- Phys.Rev.D 108 (2023) 8, 084059
•
e-Print:
- 2307.12830 [gr-qc]

pdfDOI

reference search9 citations

Newman-Janis algorithm’s application to regular black hole models

#12

Alexander Kamenshchik
(
- Bologna U. and
- INFN, Bologna
)
,
Polina Petriakova
(
- Bologna U. and
- INFN, Bologna
)

(May 8, 2023)

Published in:
- Phys.Rev.D 107 (2023) 12, 124020
•
e-Print:
- 2305.04697 [gr-qc]

pdfDOI

reference search15 citations

Reconstruction methods and the amplification of the inflationary spectrum

#13

Leonardo Chataignier
(
- Bologna U. and
- INFN, CNAF
)
,
Alexander Yu. Kamenshchik
(
- Bologna U. and
- INFN, CNAF
)
,
Alessandro Tronconi
(
- Bologna U. and
- INFN, CNAF
)
,
Giovanni Venturi
(
- Bologna U. and
- INFN, CNAF
)

(Jan 11, 2023)

Published in:
- Phys.Rev.D 107 (2023) 8, 083506
•
e-Print:
- 2301.04477 [gr-qc]

pdfDOI

reference search4 citations

Scalar fields in the de Sitter spacetime

#14

Alexander Y. Kamenshchik
(
- Bologna U.
)
,
Alexei A. Starobinsky
(
- Dubna, JINR
)
,
Tereza Vardanyan
(
- L'Aquila U.
)

(2023)

Published in:
- J.Phys.Conf.Ser. 2531 (2023) 1, 012007
•
Contribution to:
- AQFTCS 2022

pdfDOI

reference search0 citations

Nonminimal Higgs Inflation and Initial Conditions in Cosmology

#15

(Dec 26, 2022)

e-Print:
- 2212.13077 [hep-th]

pdfDOI

reference search3 citations

Reflected waves and quantum gravity

#16

(Oct 10, 2022)

Published in:
- Phys.Rev.D 107 (2023) 2, 026004
•
e-Print:
- 2210.04927 [gr-qc]

pdfDOI

reference search0 citations

Background independence and field redefinitions in quantum gravity

#17

Roberto Casadio
(
- Bologna U. and
- INFN, Bologna
)
,
Alexander Kamenshchik
(
- Bologna U. and
- INFN, Bologna
)
,
Iberê Kuntz
(
- Juiz de Fora U. and
- Parana U.
)

(Oct 9, 2022)

Published in:
- Annals Phys. 449 (2023) 169203
•
e-Print:
- 2210.04368 [hep-th]

pdfDOI

reference search10 citations

Regular black holes, universes without singularities, and phantom-scalar field transitions

#18

Leonardo Chataignier
(
- Bologna U. and
- INFN, Bologna
)
,
Alexander Yu. Kamenshchik
(
- Bologna U. and
- INFN, Bologna
)
,
Alessandro Tronconi
(
- Bologna U. and
- INFN, Bologna
)
,
Giovanni Venturi
(
- Bologna U. and
- INFN, Bologna
)

(Aug 3, 2022)

Published in:
- Phys.Rev.D 107 (2023) 2, 023508
•
e-Print:
- 2208.02280 [gr-qc]

pdfDOI

reference search21 citations

Covariant singularities: A brief review

#19

Iberê Kuntz
(
- Juiz de Fora U. and
- Parana U.
)
,
Roberto Casadio
(
- Bologna U. and
- INFN, Bologna
)
,
Alexander Kamenshchik
(
- Bologna U. and
- INFN, Bologna and
- Landau Inst.
)

(Mar 21, 2022)

Published in:
- Mod.Phys.Lett.A 37 (2022) 10, 2230007
•
e-Print:
- 2203.11259 [hep-th]

pdfDOI

reference search9 citations

Einstein Equations: Local Energy, Self-Force, and Fields in General Relativity. Domoschool 2019

#20

Sergio Luigi Cacciatori(ed.)
,
Alexander Kamenshchik(ed.)

(2022)

Published in:
- Tutorials, Schools, and Workshops in the Mathematical Sciences
•
e-Print:
- 2303.15037 [gr-qc]

pdfDOI

reference search0 citations

Bianchi IX gravitational collapse of matter inhomogeneities

#21

(Dec 3, 2021)

Published in:
- JCAP 03 (2022) 03, 028
•
e-Print:
- 2112.01869 [gr-qc]

pdfDOI

reference search8 citations

DBI inflation and warped black holes

#22

Alexander Y. Kamenshchik
(
- Bologna U., Dept. Astron. and
- INFN, Bologna and
- Landau Inst.
)
,
Alessandro Tronconi
(
- U. Bologna, DIFA and
- INFN, Bologna
)
,
Giovanni Venturi
(
- U. Bologna, DIFA and
- INFN, Bologna
)

(Oct 15, 2021)

Published in:
- JCAP 01 (2022) 01, 051
•
e-Print:
- 2110.08112 [gr-qc]

pdfDOI

reference search7 citations

Massive scalar field in de Sitter spacetime: a two-loop calculation and a comparison with the stochastic approach

#23

Alexander Yu. Kamenshchik
(
- Bologna U. and
- Dubna, JINR
)
,
Alexei A. Starobinsky
(
- Dubna, JINR
)
,
Tereza Vardanyan
(
- L'Aquila U.
)

(Sep 12, 2021)

Published in:
- Eur.Phys.J.C 82 (2022) 4, 345
•
e-Print:
- 2109.05625 [gr-qc]

DOI

reference search22 citations

Time and Evolution in Quantum and Classical Cosmology

#24

Alexander Yu. Kamenshchik
(
- Bologna U. and
- INFN, Bologna and
- Landau Inst.
)
,
Jeinny Nallely Pérez Rodriguez
(
- U. Bologna, DIFA
)
,
Tereza Vardanyan
(
- L'Aquila U. and
- Gran Sasso
)

(Jun 30, 2021)

Published in:
- Universe 7 (2021) 7, 219
•
e-Print:
- 2107.00917 [gr-qc]

DOI

reference search1 citation

Born–Oppenheimer meets Wigner–Weyl in quantum gravity

#25

A.Y. Kamenshchik
(
- Catania U. and
- INFN, Bologna
)
,
A. Tronconi
(
- INFN, Bologna
)
,
G. Venturi
(
- INFN, Bologna
)

(Apr 15, 2021)

Published in:
- Class.Quant.Grav. 38 (2021) 18, 185006
•
e-Print:
- 2104.07480 [gr-qc]

pdfDOI

reference search1 citation

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