801 citations · 1.1k across the 19 of their papers we have counts for
22 papers
Close Pulsar Pairs See Dark Matter Substructure through the Gravitational-Wave Background
Abhiram Cherukupalli, Vincent S. H. Lee, Kim V. Berghaus +1
Pulsar timing arrays detect signals from dark matter substructure, but a nanohertz gravitational-wave background (GWB) severely degrades their sensitivity. We show that timing puls…
A Universal Kaluza-Klein Graviton Cascade Rate
Vincent S. H. Lee, Lisa Randall, Marcos Riojas
We obtain a general decay rate between Kaluza-Klein (KK) gravitons, resolving an ambiguity in the literature concerning these decays. The amplitude is determined not only by the ma…
Proper Time Shifts in Pulsar Timing Arrays
Vincent S. H. Lee
Pulsar timing arrays are a powerful tool for probing low-frequency gravitational phenomena and physics beyond the Standard Model. We establish a general, gauge-invariant framework…
A Warped Extra Dimensional Candidate for the LZ 248 keV Event
Vincent S. H. Lee, Lisa Randall
The recent result by the LUX-ZEPLIN (LZ) experiment of a single nuclear-recoil event at suggests an interpretation in terms of inelastic scattering between dark…
Detectable subhalo impacts in Milky Way streams
Junyang Lu, Elias Bernreuther, Tongyan Lin +3
Dark matter subhalos leave gravitational imprints in the stellar streams of the Milky Way. Observing individual strong impacts of subhalos offers a compelling way to constrain and…
Correlated signals of ultralight scalar dark matter in pulsar timing
Joshua W. Foster, Kimberly K. Boddy, Jeff A. Dror +5
Pulsar timing arrays (PTAs) are sensitive to ultralight dark matter (ULDM) in the - mass range, with existing datasets already probing otherwise op…
Pulsar Timing Sensitivity to Dark Matter Substructure in the Presence of a Stochastic Gravitational-Wave Background
Abhiram Cherukupalli, Vincent S. H. Lee, Kim Berghaus +1
Pulsar timing arrays (PTAs) can detect dark matter (DM) substructure through the small shifts a transiting DM subhalo imprints on pulse arrival times. Recently found evidence for a…
Primordial Non-Gaussianity and the Field-Level Cramer-Rao Bound
Eugene Chen, Daniel Green, Vincent S. H. Lee
Primordial non-Gaussianity is one of the most powerful probes of the inflationary epoch. The particle spectrum relevant to inflation, including masses and spins, is encoded in the…
Physics beyond the Standard Model with the DSA-2000
Kim V. Berghaus, Yufeng Du, Vincent S. H. Lee +4
The upcoming Deep Synoptic Array 2000 (DSA-2000) will map the radio sky at GHz (eV) with unprecedented sensitivity. This will enable searches for dark matte…
Detecting gravitational signatures of dark matter with atom gradiometers
Leonardo Badurina, Yufeng Du, Vincent S. H. Lee +2
We study the purely gravitational signatures of dark matter from the ultralight to the ultraheavy mass range in proposed long-baseline atom gradiometers, focusing on terrestrial de…
Signatures of linearized gravity in atom interferometers: A simplified computational framework
Leonardo Badurina, Yufeng Du, Vincent S. H. Lee +2
We develop a general framework for calculating the leading-order, general relativistic contributions to the gravitational phase shift in single-photon atom interferometers within t…
Proper Time Observables of General Gravitational Perturbations in Laser Interferometry-based Gravitational Wave Detectors
Vincent S. H. Lee, Kathryn M. Zurek
We present an explicitly gauge-invariant observable of {\em any} general gravitational perturbation, (\textit{not} necessarily due to gravitational waves (GWs)), in a lase…
Photon Counting Interferometry to Detect Geontropic Space-Time Fluctuations with GQuEST
Sander M. Vermeulen, Torrey Cullen, Daniel Grass +8
The GQuEST (Gravity from the Quantum Entanglement of Space-Time) experiment uses tabletop-scale Michelson laser interferometers to probe for fluctuations in space-time. We present…
Astronomical Image Blurring from Transversely Correlated Quantum Gravity Fluctuations
Vincent S. H. Lee, Kathryn M. Zurek, Yanbei Chen
Quantum fluctuations in spacetime can, in some cases, lead to distortion in astronomical images of faraway objects. In particular, a stochastic model of quantum gravity predicts an…
The NANOGrav 15-year Data Set: Search for Signals from New Physics
Adeela Afzal, Gabriella Agazie, Akash Anumarlapudi +120
The 15-year pulsar timing data set collected by the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) shows positive evidence for the presence of a low-freque…
Macroscopic Dark Matter Detection with Gravitational Wave Experiments
Yufeng Du, Vincent S. H. Lee, Yikun Wang +1
We study signatures of macroscopic dark matter (DM) in current and future gravitational wave (GW) experiments. Transiting DM with a mass of kg that saturates the…
Interferometer Response to Geontropic Fluctuations
Dongjun Li, Vincent S. H. Lee, Yanbei Chen +1
We model vacuum fluctuations in quantum gravity with a scalar field, characterized by a high occupation number, coupled to the metric. The occupation number of the scalar is given…
Astrophysical Observations of a Dark Matter-Baryon Fifth Force
Moira I. Gresham, Vincent S. H. Lee, Kathryn M. Zurek
We consider the effects of an attractive, long-range Yukawa interaction between baryons and dark matter (DM), focusing in particular on temperature and pulsar timing observations o…
Near-Horizon Quantum Dynamics of 4-d Einstein Gravity from 2-d JT Gravity
Sergei Gukov, Vincent S. H. Lee, Kathryn M. Zurek
We study quantum fluctuations in the lightcone metric of the 4-d Einstein-Hilbert action via dimensional reduction to Jackiw-Teitelboim (JT) gravity. In particular, we show that, i…
Searching For Gravitational Waves From Cosmological Phase Transitions With The NANOGrav 12.5-year dataset
Zaven Arzoumanian, Paul T. Baker, Harsha Blumer +62
We search for a first-order phase transition gravitational wave signal in 45 pulsars from the NANOGrav 12.5 year dataset. We find that the data can be modeled in terms of a strong…
Bayesian Forecasts for Dark Matter Substructure Searches with Mock Pulsar Timing Data
Vincent S. H. Lee, Stephen R. Taylor, Tanner Trickle +1
Dark matter substructure, such as primordial black holes (PBHs) and axion miniclusters, can induce phase shifts in pulsar timing arrays (PTAs) measurements due to gravitational eff…
Probing Small-Scale Power Spectra with Pulsar Timing Arrays
Vincent S. H. Lee, Andrea Mitridate, Tanner Trickle +1
Models of Dark Matter (DM) can leave unique imprints on the Universe's small scale structure by boosting density perturbations on small scales. We study the capability of Pulsar Ti…