Hassan Firouzjahi

146 results

Citation Summary

Most Recent

Hamiltonians to all Orders in Perturbation Theory and Higher Loop Corrections in Single Field Inflation with PBHs Formation

Hassan Firouzjahi
(
- IPM, Tehran
)
,
Bahar Nikbakht
(
- IPM, Tehran
)

(Feb 14, 2025)

e-Print:
- 2502.10287 [astro-ph.CO]

pdf

reference search2 citations

Non-Perturbative Hamiltonian and Higher Loop Corrections in USR Inflation

Hassan Firouzjahi
(
- IPM, Tehran
)
,
Bahar Nikbakht
(
- IPM, Tehran
)

(Feb 13, 2025)

e-Print:
- 2502.09481 [astro-ph.CO]

pdf

reference search3 citations

Two-Loop Corrections in Power Spectrum in Models of Inflation with Primordial Black Hole Formation

Hassan Firouzjahi
(
- IPM, Tehran
)

(Nov 15, 2024)

Published in:
- Universe 10 (2024) 12, 456
•
e-Print:
- 2411.10253 [hep-ph]

DOI

reference search5 citations

Upper Bounds on the Mass of Fundamental Fields from Primordial Universe

Hassan Firouzjahi
(
- IPM, Tehran
)

(Jun 26, 2024)

e-Print:
- 2406.18435 [astro-ph.CO]

pdf

reference search0 citations

Quantum fluctuations in the interior of black holes and backreactions

Hassan Firouzjahi
(
- IPM, Tehran
)

(May 9, 2024)

Published in:
- Phys.Rev.D 110 (2024) 2, 025022
•
e-Print:
- 2405.05750 [gr-qc]

pdfDOI

reference search2 citations

Vacuum zero point energy of self-interacting quantum fields in dS background

Hassan Firouzjahi
(
- IPM, Tehran
)
,
Haidar Sheikhahmadi
(
- IPM, Tehran
)

(Mar 15, 2024)

Published in:
- Phys.Rev.D 109 (2024) 12, 125005
•
e-Print:
- 2403.10463 [gr-qc]

pdfDOI

reference search1 citation

Loop corrections in the bispectrum in ultraslow-roll inflation with PBHs formation

Hassan Firouzjahi
(
- IPM, Tehran
)

(Mar 6, 2024)

Published in:
- Phys.Rev.D 110 (2024) 4, 043519
•
e-Print:
- 2403.03841 [astro-ph.CO]

pdfDOI

reference search14 citations

Revisiting loop corrections in single field ultraslow-roll inflation

Hassan Firouzjahi
(
- IPM, Tehran
)

(Nov 7, 2023)

Published in:
- Phys.Rev.D 109 (2024) 4, 043514
•
e-Print:
- 2311.04080 [astro-ph.CO]

pdfDOI

reference search39 citations

Sign of non-Gaussianity and the primordial black holes abundance

Hassan Firouzjahi
(
- IPM, Tehran
)
,
Antonio Riotto
(
- Geneva U.
)

(Sep 19, 2023)

Published in:
- Phys.Rev.D 108 (2023) 12, 123504
•
e-Print:
- 2309.10536 [astro-ph.CO]

pdfDOI

reference search28 citations

Induced gravitational waves from ultra slow-roll inflation and pulsar timing arrays observations

#10

Hassan Firouzjahi
(
- IPM, Tehran
)
,
Alireza Talebian
(
- IPM, Tehran
)

(Jul 6, 2023)

Published in:
- JCAP 10 (2023) 032
•
e-Print:
- 2307.03164 [gr-qc]

pdfDOI

reference search45 citations

Vacuum zero point energy and its statistical correlations in dS background

#11

Hassan Firouzjahi
(
- IPM, Tehran
)
,
Haidar Sheikhahmadi
(
- IPM, Tehran
)

(Jul 3, 2023)

Published in:
- Phys.Rev.D 108 (2023) 6, 065002
•
e-Print:
- 2307.00977 [gr-qc]

pdfDOI

reference search5 citations

Loop corrections in gravitational wave spectrum in single field inflation

#12

Hassan Firouzjahi
(
- IPM, Tehran
)

(May 2, 2023)

Published in:
- Phys.Rev.D 108 (2023) 4, 043532
•
e-Print:
- 2305.01527 [astro-ph.CO]

pdfDOI

reference search18 citations

Primordial Black Holes and loops in single-field inflation

#13

Hassan Firouzjahi
(
- IPM, Tehran
)
,
Antonio Riotto
(
- Geneva U., CAP and
- Annecy, LAPTH
)

(Apr 16, 2023)

Published in:
- JCAP 02 (2024) 021
•
e-Print:
- 2304.07801 [astro-ph.CO]

pdfDOI

reference search102 citations

Stochastic multiple fields inflation: Diffusion dominated regime

#14

(Apr 2, 2023)

Published in:
- Phys.Rev.D 108 (2023) 12, 123537
•
e-Print:
- 2304.00577 [astro-ph.CO]

pdfDOI

reference search8 citations

One-loop corrections in power spectrum in single field inflation

#15

Hassan Firouzjahi
(
- IPM, Tehran
)

(Mar 21, 2023)

Published in:
- JCAP 10 (2023) 006
•
e-Print:
- 2303.12025 [astro-ph.CO]

pdfDOI

reference search98 citations

White hole cosmology and Hawking radiation from quantum cosmological perturbations

#16

Hassan Firouzjahi
(
- IPM, Tehran
)
,
Alireza Talebian
(
- IPM, Tehran
)

(Oct 27, 2022)

Published in:
- Phys.Rev.D 106 (2022) 12, 123505
•
e-Print:
- 2210.15186 [gr-qc]

pdfDOI

reference search4 citations

Inflation from Multiple Pseudo-scalar Fields: Primordial Black Hole Dark Matter and Gravitational Waves

#17

Alireza Talebian
(
- IPM, Tehran
)
,
Seyed Ali Hosseini Mansoori
(
- Shahrood U.
)
,
Hassan Firouzjahi
(
- IPM, Tehran
)

(Oct 25, 2022)

Published in:
- Astrophys.J. 948 (2023) 1, 48
•
e-Print:
- 2210.13822 [astro-ph.CO]

DOI

reference search11 citations

Inflation with stochastic boundary

#18

(Aug 17, 2022)

Published in:
- Phys.Rev.D 106 (2022) 12, 123528
•
e-Print:
- 2208.08229 [hep-th]

pdfDOI

reference search4 citations

Multiple Transitions in Vacuum Dark Energy and H

_{0}

Tension

#19

(Aug 10, 2022)

Published in:
- Astrophys.J. 940 (2022) 2, 121
•
e-Print:
- 2208.05583 [astro-ph.CO]

DOI

reference search25 citations

Cosmological constant and vacuum zero point energy in black hole backgrounds

#20

Hassan Firouzjahi
(
- IPM, Tehran
)

(May 13, 2022)

Published in:
- Phys.Rev.D 106 (2022) 4, 045015
•
e-Print:
- 2205.06561 [gr-qc]

pdfDOI

reference search8 citations

Stochastic effects in axion inflation and primordial black hole formation

#21

(Feb 4, 2022)

Published in:
- Phys.Rev.D 105 (2022) 10, 103516
•
e-Print:
- 2202.02062 [astro-ph.CO]

pdfDOI

reference search18 citations

Multiple field ultraslow-roll inflation: Primordial black holes from straight bulk and distorted boundary

#22

Sina Hooshangi
(
- IPM, Tehran
)
,
Alireza Talebian
(
- IPM, Tehran
)
,
Mohammad Hossein Namjoo
(
- IPM, Tehran
)
,
Hassan Firouzjahi
(
- IPM, Tehran
)

(Jan 18, 2022)

Published in:
- Phys.Rev.D 105 (2022) 8, 083525
•
e-Print:
- 2201.07258 [astro-ph.CO]

pdfDOI

reference search27 citations

Cosmological constant problem on the horizon

#23

Hassan Firouzjahi
(
- IPM, Tehran
)

(Jan 6, 2022)

Published in:
- Phys.Rev.D 106 (2022) 8, 083510
•
e-Print:
- 2201.02016 [gr-qc]

pdfDOI

reference search11 citations

Primordial helical magnetic fields from inflation?

#24

(Nov 3, 2021)

Published in:
- Phys.Rev.D 105 (2022) 2, 023528
•
e-Print:
- 2111.02147 [astro-ph.CO]

pdfDOI

reference search11 citations

Dark matter from entropy perturbations in curved field space

#25

Hassan Firouzjahi
(
- IPM, Tehran
)
,
Mohammad Ali Gorji
(
- Kyoto U., Yukawa Inst., Kyoto
)
,
Shinji Mukohyama
(
)
,
Alireza Talebian
(
- IPM, Tehran
)

(Oct 18, 2021)

Published in:
- Phys.Rev.D 105 (2022) 4, 043501
•
e-Print:
- 2110.09538 [gr-qc]

pdfDOI

reference search8 citations

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Hassan Firouzjahi(
IPM, Tehran
)

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Hassan Firouzjahi(IPM, Tehran)

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Hassan Firouzjahi(
IPM, Tehran
)