2 citations · 4 across the 7 of their papers we have counts for
9 papers
Petz Recovery through a Single Polar Transformation for Approximate Quantum Error Correction
Hanzhang Zhao, Shenglong Xu
The Petz recovery map provides a near optimal decoder for approximate quantum error correction, but its inverse square-root normalization complicates circuit implementation. We use…
Gravitational lensing of gravitational waves by galaxy clusters
Xikai Shan, Yi-Fan Wang, Shude Mao +2
Strongly lensed gravitational waves (GWs) are commonly searched for using population priors, including time-delay and magnification-ratio distributions, to suppress false alarms. C…
Supernova microlensing as a probe of ultracompact minihalos and primordial cosmology
Djuna Croon, Sergio Sevillano Muñoz, Miguel Zumalacarregui
We propose using supernova microlensing to search for ultracompact minihalos and other extended dark structures seeded by enhanced primordial small-scale power. Unlike conventional…
Signatures of Dark Matter halos in LISA via Stochastic Diffraction
Han Gil Choi, Juan Urrutia, Miguel Zumalacárregui
Cold Dark Matter predicts a population of low-mass halos which are sensitive to its fundamental nature and the primordial power spectrum, yet remain undetected. Although elusive, t…
Effective description of lensed gravitational waves diffracted by stellar fields
Miguel Zumalacárregui, Xikai Shan
As natural telescopes, Gravitational lenses enable the observation of sources that would otherwise be too distant and faint. Stellar-mass objects, or microlenses, act as impurities…
Gravitational-wave dispersion over inhomogeneous space-times: General relativity, screened theories of gravity and non-minimal dark energy
Nicola Menadeo, Serena Giardino, Miguel Zumalacárregui
Gravitational waves (GWs) are direct probes of cosmological gravity, sensitive to space-time inhomogeneities along their propagation. The presence of massive objects breaks homogen…
Accelerated inference of microlensed gravitational waves with machine learning
Marienza Caldarola, Srashti Goyal, Nihar Gupte +2
Gravitational waves (GWs) within the LIGO-Virgo-KAGRA sensitivity band can be microlensed by stellar and intermediate-mass black holes, producing a frequency-dependent modulation o…
Dark Matter Subhalos and Higher Order Catastrophes in Gravitational Wave Lensing
Luka Vujeva, Jose María Ezquiaga, Daniel Gilman +2
Gravitational lensing is an invaluable probe of the nature of dark matter, and the structures it forms. Lensed gravitational waves in particular allow for unparalleled sensitivity…
Black holes as telescopes: Discovering supermassive binaries through quasi-periodic lensed starlight
Hanxi Wang, Miguel Zumalacárregui, Bence Kocsis
Supermassive black hole (SMBH) binary systems are unavoidable outcomes of galaxy mergers. Their dynamics encode information about their formation and growth, the composition of the…