J
Jai Grover
Researcher at European Space Research and Technology Centre
Publications - 30
Citations - 807
Jai Grover is an academic researcher from European Space Research and Technology Centre. The author has contributed to research in topics: Supergravity & Supersymmetry. The author has an hindex of 16, co-authored 30 publications receiving 684 citations. Previous affiliations of Jai Grover include University of Aveiro & University of Cambridge.
Papers
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Journal ArticleDOI
Chaotic lensing around boson stars and Kerr black holes with scalar hair
Pedro V. P. Cunha,Pedro V. P. Cunha,Jai Grover,Carlos A. R. Herdeiro,Eugen Radu,Helgi F. Runarsson,Alexander Wittig +6 more
TL;DR: Cunha et al. as discussed by the authors examined the 2D effective potentials for photon trajectories, and found that the emergence of stable light rings on the background spacetimes allows the formation of ''pockets'' in one of the effective potential, for open sets of impact parameters, leading to an effective trapping of some trajectories.
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Multiparameter quantum metrology of incoherent point sources: Towards realistic superresolution
Jaroslav Rehacek,Zdenek Hradil,B. Stoklasa,Martin Paúr,Jai Grover,A. Krzic,Luis L. Sánchez-Soto,Luis L. Sánchez-Soto +7 more
TL;DR: In this article, the authors established the multiparameter quantum Cram\'er-Rao bound for simultaneously estimating the centroid, the separation, and the relative intensities of two incoherent optical point sources using a linear imaging system.
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HKT Geometry and de Sitter Supergravity
TL;DR: In this article, it was shown that the "timelike" solutions are determined in terms of a four dimensional hyper-Kahler torsion (HKT) manifold.
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Tempering Rayleigh's curse with PSF shaping
Martin Paúr,B. Stoklasa,Jai Grover,Andrej Krzic,Luis L. Sánchez-Soto,Zdeněk Hradil,Jaroslav Řeháček +6 more
TL;DR: In this paper, the authors identify a class of point spread functions with a linear information decrease and show that any well-behaved symmetric PSF can be converted into such a form with a simple nonabsorbing signum filter.
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Optimal measurements for quantum spatial superresolution
Jaroslav Řeháček,Zdenek Hradil,Dominik Koutný,Jai Grover,A. Krzic,Luis L. Sánchez-Soto,Luis L. Sánchez-Soto +6 more
TL;DR: In this article, the authors constructed optimal measurements for the simultaneous estimation of centroid, separation, and relative intensities of two incoherent point sources using a linear optical system, achieving the ultimate precision predicted by quantum theory.