AL
Alexandru Lupsasca
gr-qcastro-ph.HEhep-thastro-ph.GAastro-ph.IMcs.AIcs.CLhep-phmath.MPmath-ph
On Valency
published · living versionsW_wdebhvrp·v1 · currentpublished
Single-Minus Graviton Amplitudes from Matrix Theory
with Alfredo Guevara, Juan Maldacena, Andrew Strominger
1 version
W_5aj95sfz·v2published
W_hdh3w5zj·v1published
W_8r4yyehq·v1published
W_4vad3f7x·v1published
W_cqdtk7w5·v2published
W_cawebmgn·v2published
W_qrshuaqb·v1published
W_6bs2mx8c·v2published
W_zj5juagt·v1published
Preprints & journals
49 papers in the corpus · 2014–2026Single-Minus Graviton Amplitudes from Matrix Theory2608.25239v1 · Alfredo Guevara, Alexandru Lupsasca, Juan Maldacena et al.2026 · 0 citationsarXivon Valency
Black Hole Polarimetry: Universal Polarization of Synchrotron Radiation at the Horizon2606.12518v2 · Andrew Chael, Alexandru Lupsasca, George N. Wong et al.2026 · 0 citationsarXivon Valency
Chaos and fractals of the black hole photon ring2603.08790v1 · Roman Berens, Peter Galison, Trevor Gravely et al.2026 · 0 citationsarXivon Valency
Black Hole Vision: An Interactive iOS Application for Visualizing Black Holes2603.05810v1 · Roman Berens, Dominic O. Chang, Trevor Gravely et al.2026 · 0 citationsarXivon Valency
Single-minus graviton tree amplitudes are nonzero2603.04330v2 · Alfredo Guevara, Alexandru Lupsasca, David Skinner et al.2026 · 0 citationsarXivon Valency
Single-minus gluon tree amplitudes are nonzero2602.12176v2 · Alfredo Guevara, Alexandru Lupsasca, David Skinner et al.2026 · 2 citationsarXivon Valency
Resonances in binary extreme mass ratio inspirals2601.02468v2 · Joao S. Santos, Vitor Cardoso, Alexandru Lupsasca et al.2026 · 2 citationsarXivon Valency
Generalized Couch--Torrence inversions2512.18664v1 · Panagiotis Charalambous, Laura Donnay, Alexandru Lupsasca2025 · 1 citationarXivon Valency
Early science acceleration experiments with GPT-52511.16072v1 · S'ebastien Bubeck, Christian Coester, Ronen Eldan et al.2025 · 3 citationsarXivon Valency
Gravitational Waves on Kerr Black Holes II: Metric Reconstruction with Cosmological Constant2510.07712v1 · Roman Berens, Trevor Gravely, Alexandru Lupsasca2025 · 2 citationsarXivon Valency
Interferometric inference of black hole spin from photon ring size and brightness2509.23628v1 · Joseph R. Farah, Alexandru Lupsasca, Eliot Quataert et al.2025 · 3 citationsarXivon Valency
Black Hole Polarimetry II: The Connection Between Spin and Polarization2509.22639v1 · George N. Wong, Andrew Chael, Alexandru Lupsasca et al.2025 · 10 citationsarXivon Valency
Photon rings in a holographic toy model2506.07989v1 · St'ephane Detournay, Sahaja Kanuri, Alexandru Lupsasca et al.2025 · 3 citationsarXivon Valency
Why there is no Love in black holes2506.05298v1 · Alexandru Lupsasca2025 · 0 citationsarXivon Valency
Explanation for the Absence of Secondary Peaks in Black Hole Light Curve Autocorrelations.39392980 · Cárdenas-Avendaño, Alejandro, Gammie, Charles, Lupsasca, Alexandru2024 · 11 citationsPhysical review letters. 2024;133(13):131402
The Black Hole Explorer: Using the Photon Ring to Visualize Spacetime Around the Black Hole2406.11671v1 · Peter Galison, Michael D. Johnson (1, Alexandru Lupsasca et al.2024 · 9 citationsProceedings Volume 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave; 130926R (2024)on Valency
The Black Hole Explorer: Photon Ring Science, Detection and Shape Measurement2406.09498v1 · Alexandru Lupsasca, Alejandro C'ardenas-Avendano, Daniel C. M. Palumbo et al.2024 · 40 citationsProceedings Volume 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave; 130926Q (2024)on Valency
The Black Hole Explorer: Motivation and Vision2406.12917v1 · Michael D. Johnson, Kazunori Akiyama, Rebecca Baturin et al.2024 · 91 citationsProceedings Volume 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave; 130922D (2024)on Valency
Photon Ring Interferometric Signatures Beyond The Universal Regime2405.08804v1 · He Jia, Eliot Quataert, Alexandru Lupsasca et al.2024 · 11 citationsPhys. Rev. D 110, 083044 (2024)on Valency
Assessing the impact of instrument noise and astrophysical fluctuations on measurements of the first black hole photon ring2404.01083v2 · Alejandro C'ardenas-Avendano, Lennox Keeble, Alexandru Lupsasca2024 · 7 citationsPhys. Rev. D 109, 124052, 2024on Valency
Gravitational Waves on Kerr Black Holes I: Reconstruction of Linearized Metric Perturbations2403.20311v4 · Roman Berens, Trevor Gravely, Alexandru Lupsasca2024 · 10 citationsClass. Quantum Grav. 41, 195004 (2024)on Valency
A Beginner's Guide to Black Hole Imaging and Associated Tests of General Relativity2402.01290v1 · Alexandru Lupsasca, Daniel R. Mayerson, Bart Ripperda et al.2024 · 10 citationsarXivon Valency
Black hole bulk-cone singularities2310.15236v1 · Matthew Dodelson, Cristoforo Iossa, Robin Karlsson et al.2023 · 28 citationsJHEP 2024 (2024) 46on Valency
Black Hole Polarimetry I: A Signature of Electromagnetic Energy Extraction2307.06372v2 · Andrew Chael, Alexandru Lupsasca, George N. Wong et al.2023 · 44 citationsarXivon Valency
Prediction for the interferometric shape of the first black hole photon ring2305.12956v2 · Alejandro C'ardenas-Avendano, Alexandru Lupsasca2023 · 38 citationsPhys. Rev. D 108, 064043, 2023on Valency
Adaptive Analytical Ray Tracing of Black Hole Photon Rings2211.07469v4 · Alejandro C'ardenas-Avendano, Alexandru Lupsasca, Hengrui Zhu2022 · 44 citationsPhys. Rev. D 107, 043030, 2023on Valency
Photon Rings Around Warped Black Holes2211.01674v1 · Daniel Kapec, Alexandru Lupsasca, Andrew Strominger2022 · 21 citationsarXivon Valency
Images and photon ring signatures of thick disks around black holes2206.12066v2 · Frederic H. Vincent, Samuel E. Gralla, Alexandru Lupsasca et al.2022 · 97 citationsarXivon Valency
Photon ring test of the Kerr hypothesis: Variation in the ring shape2206.02781v3 · Hadrien Paugnat, Alexandru Lupsasca, Fr'ed'eric Vincent et al.2022 · 59 citationsA&A 668, A11 (2022)on Valency
Holography of the Photon Ring2205.05064v1 · Shahar Hadar, Daniel Kapec, Alexandru Lupsasca et al.2022 · 51 citationsarXivon Valency
Observing the Inner Shadow of a Black Hole: A Direct View of the Event Horizon2106.00683v1 · Andrew Chael, Michael D. Johnson, Alexandru Lupsasca2021 · 197 citationsarXivon Valency
Extreme Black Hole Anabasis2012.06562v3 · Shahar Hadar, Alexandru Lupsasca, Achilleas P. Porfyriadis2020 · 16 citationsarXivon Valency
Photon Emission from Circular Equatorial Kerr Orbiters2010.07330v2 · Delilah E. A. Gates, Shahar Hadar, Alexandru Lupsasca2020 · 17 citationsPhys. Rev. D 103, 044050 (2021)on Valency
Photon Ring Autocorrelations2010.03683v3 · Shahar Hadar, Michael D. Johnson, Alexandru Lupsasca et al.2020 · 83 citationsPhys. Rev. D 103, 104038 (2021)on Valency
Maximum Observable Blueshift from Circular Equatorial Kerr Orbiters2009.03310v1 · Delilah E. A. Gates, Shahar Hadar, Alexandru Lupsasca2020 · 34 citationsPhys. Rev. D 102, 104041 (2020)on Valency
The Shape of the Black Hole Photon Ring: A Precise Test of Strong-Field General Relativity2008.03879v2 · Samuel E. Gralla, Alexandru Lupsasca, Daniel P. Marrone2020 · 225 citationsarXivon Valency
On the Observable Shape of Black Hole Photon Rings2007.10336v1 · Samuel E. Gralla, Alexandru Lupsasca2020 · 78 citationsarXivon Valency
Universal Polarimetric Signatures of the Black Hole Photon Ring2001.08750v1 · Elizabeth Himwich, Michael D. Johnson, Alexandru Lupsasca et al.2020 · 131 citationsPhys. Rev. D 101, 084020 (2020)on Valency
Lensing by Kerr Black Holes1910.12873v2 · Samuel E. Gralla, Alexandru Lupsasca2019 · 224 citationsPhys. Rev. D 101, 044031 (2020)on Valency
The Null Geodesics of the Kerr Exterior1910.12881v3 · Samuel E. Gralla, Alexandru Lupsasca2019 · 131 citationsPhys. Rev. D 101, 044032 (2020)on Valency
Critical Emission from a High-Spin Black Hole1712.10182v2 · Alexandru Lupsasca, Achilleas P. Porfyriadis, Yichen Shi2017 · 18 citationsPhys. Rev. D 97, 064017 (2018)on Valency
Observational Signature of High Spin at the Event Horizon Telescope1710.11112v2 · Samuel E. Gralla, Alexandru Lupsasca, Andrew Strominger2017 · 92 citationsMon. Notices Royal Astron. Soc. 475 (3), 3829-3853 (2018)on Valency
Inclined Pulsar Magnetospheres in General Relativity: Polar Caps for the Dipole, Quadrudipole and Beyond1704.05062v2 · Samuel E. Gralla, Alexandru Lupsasca, Alexander Philippov2017 · 63 citationsAstrophys. J 851, 137 (2017)on Valency
Force-Free Foliations1606.06727v2 · Geoffrey Compere, Samuel E. Gralla, Alexandru Lupsasca2016 · 19 citationsPhys. Rev. D 94, 124012 (2016)on Valency
Pulsar Magnetospheres: Beyond the Flat Spacetime Dipole1604.04625v3 · Samuel E. Gralla, Alexandru Lupsasca, Alexander Philippov2016 · 47 citationsAstrophys. J 833, 258 (2016)on Valency
Near-horizon Kerr Magnetosphere1602.01833v2 · Samuel E. Gralla, Alexandru Lupsasca, Andrew Strominger2016 · 39 citationsPhys. Rev. D 93, 104041 (2016)on Valency
Note on Bunching of Field Lines in Black Hole Magnetospheres1504.02112v2 · Samuel E. Gralla, Alexandru Lupsasca, Maria J. Rodriguez2015 · 14 citationsPhys. Rev. D 92, 044053 (2015)on Valency
Electromagnetic Jets from Stars and Black Holes1504.02113v2 · Samuel E. Gralla, Alexandru Lupsasca, Maria J. Rodriguez2015 · 32 citationsPhys. Rev. D 93, 044038 (2016)on Valency
Exact Solutions for Extreme Black Hole Magnetospheres1412.4124v2 · Alexandru Lupsasca, Maria J. Rodriguez2014 · 28 citationsJHEP 1507 (2015) 090on Valency
Career total: at least 67 works. 49 are in this corpus.
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