Alexander Westphal

100 results

Citation Summary

Most Recent

Uplifts in the Penumbra: Features of the Moduli Potential away from Infinite-Distance Boundaries

(Dec 16, 2024)

e-Print:
- 2412.12253 [hep-th]

pdf

reference search2 citations

DeWitt wave functions for de Sitter JT gravity

Wilfried Buchmuller
(
- DESY
)
,
Arthur Hebecker
(
- U. Heidelberg, ITP
)
,
Alexander Westphal
(
- DESY
)

(Dec 12, 2024)

e-Print:
- 2412.09211 [hep-th]

pdf

reference search3 citations

Preheating axions in string cosmology

Jacob M. Leedom
(
- DESY and
- Prague, Inst. Phys.
)
,
Margherita Putti
(
- DESY
)
,
Nicole Righi
(
- King's Coll. London
)
,
Alexander Westphal
(
- DESY
)

(Nov 27, 2024)

Published in:
- JHEP 04 (2025) 095
•
e-Print:
- 2411.18496 [hep-th]

DOI

reference search4 citations

End-of-the-world branes and inflationary predictions for rocky and swampy landscapes

Bjoern Friedrich
(
- U. Heidelberg, ITP
)
,
Arthur Hebecker
(
- U. Heidelberg, ITP
)
,
Alexander Westphal
(
- DESY
)

(Nov 18, 2024)

Published in:
- JHEP 03 (2025) 196
•
e-Print:
- 2411.11944 [hep-th]

DOI

reference search0 citations

Falsifying anthropics

Nemanja Kaloper
(
- UC, Davis, QMAP
)
,
Alexander Westphal
(
- DESY
)

(Apr 3, 2024)

Published in:
- JCAP 12 (2024) 017
•
e-Print:
- 2404.02993 [hep-th]

pdfDOI

reference search1 citation

Gravitational axiverse spectroscopy: seeing the forest for the axions

Ema Dimastrogiovanni
(
- U. Groningen, VSI
)
,
Matteo Fasiello
(
- Madrid, IFT
)
,
Jacob M. Leedom
(
- DESY
)
,
Margherita Putti
(
- Hamburg U., Inst. Theor. Phys. II and
- DESY
)
,
Alexander Westphal
(
- DESY
)

(Dec 20, 2023)

Published in:
- JHEP 08 (2024) 072
•
e-Print:
- 2312.13431 [hep-th]

DOI

reference search12 citations

Implications of the weak gravity conjecture for de Sitter space decay by flux discharge

Nemanja Kaloper
(
- UC, Davis, QMAP
)
,
Alexander Westphal
(
- DESY
)

(Sep 13, 2023)

Published in:
- Phys.Rev.D 109 (2024) 8, 085002
•
e-Print:
- 2309.07223 [hep-th]

pdfDOI

reference search1 citation

Heterotic de Sitter beyond modular symmetry

Jacob M. Leedom
(
- DESY
)
,
Nicole Righi
(
- King's Coll. London
)
,
Alexander Westphal
(
- DESY
)

(Dec 7, 2022)

Published in:
- JHEP 02 (2023) 209
•
e-Print:
- 2212.03876 [hep-th]

DOI

reference search36 citations

Axionic Festina Lente

Veronica Guidetti
(
- DESY
)
,
Nicole Righi
(
- DESY
)
,
Victoria Venken
(
- U. Heidelberg, ITP
)
,
Alexander Westphal
(
- DESY
)

(Jun 7, 2022)

Published in:
- JHEP 01 (2023) 114
•
e-Print:
- 2206.03494 [hep-th]

DOI

reference search16 citations

Quantum-mechanical mechanism for reducing the cosmological constant

#10

Nemanja Kaloper
(
- UC, Davis, QMAP
)
,
Alexander Westphal
(
- DESY
)

(Apr 27, 2022)

Published in:
- Phys.Rev.D 106 (2022) 10, L101701
•
e-Print:
- 2204.13124 [hep-th]

pdfDOI

reference search17 citations

General double monodromy inflation

#11

Guido D'Amico
(
- Parma U. and
- INFN, Parma
)
,
Nemanja Kaloper
(
- UC, Davis, QMAP
)
,
Alexander Westphal
(
- DESY
)

(Dec 27, 2021)

Published in:
- Phys.Rev.D 105 (2022) 10, 103527
•
e-Print:
- 2112.13861 [hep-th]

pdfDOI

reference search40 citations

Fuzzy Dark Matter candidates from string theory

#12

Michele Cicoli
(
- U. Bologna, DIFA and
- INFN, Bologna
)
,
Veronica Guidetti
(
- DESY
)
,
Nicole Righi
(
- DESY
)
,
Alexander Westphal
(
- DESY
)

(Oct 6, 2021)

Published in:
- JHEP 05 (2022) 107
•
e-Print:
- 2110.02964 [hep-th]

DOI

reference search57 citations

Thraxions: towards full string models

#13

Federico Carta
(
- Durham U., Dept. of Math.
)
,
Alessandro Mininno
(
- Madrid, IFT and
- Hamburg U., Inst. Theor. Phys. II
)
,
Nicole Righi
(
- DESY
)
,
Alexander Westphal
(
- DESY
)

(Oct 6, 2021)

Published in:
- JHEP 01 (2022) 082
•
e-Print:
- 2110.02963 [hep-th]

DOI

reference search18 citations

dNNsolve: an efficient NN-based PDE solver

#14

(Mar 15, 2021)

e-Print:
- 2103.08662 [cs.LG]

pdf

reference search5 citations

Gopakumar-Vafa hierarchies in winding inflation and uplifts

#15

Federico Carta
(
- Durham U., Dept. of Math.
)
,
Alessandro Mininno
(
- Madrid, IFT
)
,
Nicole Righi
(
- DESY
)
,
Alexander Westphal
(
- DESY
)

(Jan 18, 2021)

Published in:
- JHEP 05 (2021) 271
•
e-Print:
- 2101.07272 [hep-th]

DOI

reference search20 citations

Double Monodromy Inflation: A Gravity Waves Factory for CMB-S4, LiteBIRD and LISA

#16

(Jan 14, 2021)

Published in:
- Phys.Rev.D 104 (2021) 8, L081302
•
e-Print:
- 2101.05861 [hep-th]

pdfDOI

reference search25 citations

Harmonic hybrid inflation

#17

(Jul 8, 2020)

Published in:
- JHEP 12 (2020) 161
•
e-Print:
- 2007.04322 [hep-th]

DOI

reference search17 citations

A landscape of orientifold vacua

#18

(Mar 10, 2020)

Published in:
- JHEP 05 (2020) 107
•
e-Print:
- 2003.04902 [hep-th]

DOI

reference search47 citations

Resonant backreaction in axion inflation

#19

Valerie Domcke
(
- DESY
)
,
Veronica Guidetti
(
- Bologna U., Dept. Astron. and
- INFN, Bologna
)
,
Yvette Welling
(
- DESY
)
,
Alexander Westphal
(
- DESY
)

(Feb 7, 2020)

Published in:
- JCAP 09 (2020) 009
•
e-Print:
- 2002.02952 [astro-ph.CO]

pdfDOI

reference search81 citations

Flattened Axion Monodromy Beyond Two Derivatives

#20

Francisco G. Pedro
(
- U. Bologna, DIFA and
- INFN, Bologna
)
,
Alexander Westphal
(
- DESY
)

(Sep 17, 2019)

Published in:
- Phys.Rev.D 101 (2020) 4, 043501
•
e-Print:
- 1909.08100 [hep-th]

DOI

reference search7 citations

A Goldilocks Higgs

#21

Nemanja Kaloper
(
- UC, Davis
)
,
Alexander Westphal
(
- DESY
)

(Jul 12, 2019)

Published in:
- Phys.Lett.B 808 (2020) 135616
•
e-Print:
- 1907.05837 [hep-th]

DOI

reference search27 citations

Gaugino condensation and small uplifts in KKLT

#22

(Feb 4, 2019)

Published in:
- JHEP 08 (2019) 141
•
e-Print:
- 1902.01412 [hep-th]

DOI

reference search109 citations

Thraxions: Ultralight Throat Axions

#23

Arthur Hebecker
(
- U. Heidelberg, ITP
)
,
Sascha Leonhardt
(
- U. Heidelberg, ITP
)
,
Jakob Moritz
(
- DESY
)
,
Alexander Westphal
(
- DESY
)

(Dec 10, 2018)

Published in:
- JHEP 04 (2019) 158
•
e-Print:
- 1812.03999 [hep-th]

DOI

reference search39 citations

Inflation as an Information Bottleneck - A strategy for identifying universality classes and making robust predictions

#24

(Oct 11, 2018)

Published in:
- JHEP 05 (2019) 065
•
e-Print:
- 1810.05199 [hep-th]

DOI

reference search9 citations

On uplifts by warped anti‐D3‐branes

#25

(Sep 18, 2018)

Published in:
- Fortsch.Phys. 67 (2019) 1-2, 1800098
•
e-Print:
- 1809.06618 [hep-th]

pdfDOI

reference search44 citations

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Alexander Westphal(
DESY
)

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Alexander Westphal(DESY)

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Alexander Westphal(
DESY
)