299 citations · 622 across the 27 of their papers we have counts for
27 papers
Finding the distribution of matter using lenses - II: deconvolution-based reconstruction with 3x2pt measurements
Jun-Qian Jiang, Ajoy Dawn, Dhiraj Kumar Hazra +2
We present a deconvolution-based framework for testing scale-dependent departures of the late-time matter power spectrum from a fiducial cosmological model using pt measu…
Finding the distribution of matter using lenses - I: deconvolution-based reconstruction with CMB lensing
Ajoy Dawn, Jun-Qian Jiang, Dhiraj Kumar Hazra +2
The matter power spectrum is one of the primary statistical descriptors of the large-scale distribution of matter in the Universe and provides a powerful probe of cosmic structure…
Is Dark Matter Really Matter?
Jun-Qian Jiang, Arman Shafieloo
In the standard model of cosmology, it is assumed that dark matter is pressureless with equation of state and dark energy has . We test these assumptions jointly using…
Late-Time Oscillating Quintessence in Light of DESI
Jun-Qian Jiang, Mustafa A. Amin, Arman Shafieloo
Recent DESI baryon acoustic oscillation measurements, especially when combined with Type Ia supernova and CMB data, sharpen the case for possible low-redshift dynamics in the dark…
DeepInflation: an AI agent for research and model discovery of inflation
Ze-Yu Peng, Hao-Shi Yuan, Qi Lai +4
We present DeepInflation, an AI agent designed for research and model discovery in inflationary cosmology. Built upon a multi-agent architecture, DeepInflation integrates Large Lan…
News-Aware Direct Reinforcement Trading for Financial Markets
Qing-Yu Lan, Zhan-He Wang, Jun-Qian Jiang +2
The financial market is known to be highly sensitive to news. Therefore, effectively incorporating news data into quantitative trading remains an important challenge. Existing appr…
Testing in light of the latest ACT and SPT data
Ze-Yu Peng, Jun-Qian Jiang, Hao Wang +1
It is commonly recognized that the primordial scalar spectral index is approximately , depending on the dataset. However, this view is being completely altered by…
Measuring neutrino masses with joint JWST and DESI DR2 data
Sheng-Han Zhou, Tian-Nuo Li, Guo-Hong Du +3
Early JWST observations reveal an unexpectedly abundant population of high-redshift candidate massive galaxies at , and recent DESI measurements show a preference for…
A fast deep-learning approach to probing primordial black hole populations in gravitational wave events
Jun-Qian Jiang, Hai-Long Huang, Jibin He +2
Primordial black holes (PBHs), envisioned as a compelling dark matter candidate and a window onto early-Universe physics, may contribute to some of the gravitational-wave (GW) sign…
The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
Eleonora Di Valentino, Jackson Levi Said, Adam Riess +533
The standard model of cosmology has provided a good phenomenological description of a wide range of observations both at astrophysical and cosmological scales for several decades.…
Status of early dark energy after DESI: the role of and
Jun-Qian Jiang
The EDE model is one of the promising solutions to the long-standing Hubble tension. This paper investigates the status of several EDE models in light of recent BAO observations fr…
Search for primordial black holes from gravitational wave populations using deep learning
Hai-Long Huang, Zhan-He Wang, Qing-Yu Lan +5
Gravitational waves (GWs) signals detected by the LIGO/Virgo/KAGRA collaboration might be sourced (partly) by the merges of primordial black holes (PBHs). The conventional hierarch…
Can the sound horizon-free measurement of constrain early new physics?
Jun-Qian Jiang, Yun-Song Piao
The sound horizon-independent extracted by using galaxy clustering surveys data through, e.g., EFTofLSS or ShapeFit analyses, is considered to have the potential to constrain…
Sub-Eddington accreting supermassive primordial black holes explain Little Red Dots
Hai-Long Huang, Jun-Qian Jiang, Jibin He +2
The James Webb Space Telescope (JWST) has uncovered an abundant population of compact, extremely red, and X-ray weak objects at , knows as ``Little Red Dots" (LRDs). The…
Scale-dependence in CDM parameters inferred from the CMB: a possible sign of Early Dark Energy
Jun-Qian Jiang
The early dark energy (EDE) model is one of the promising solutions to the Hubble tension. One of the successes of the EDE model is that it can provide a similar fit to the CDM…
Towards primordial gravitational waves and in light of BICEP/Keck, DESI BAO and Hubble tension
Hao Wang, Gen Ye, Jun-Qian Jiang +1
Recent observational data seem to show a evidence for an evolving dark energy (DE) against the cosmological constant, so the standard CDM model. In this paper, we p…
Explanation of high redshift luminous galaxies from JWST by early dark energy model
Jun-Qian Jiang, Weiyang Liu, Hu Zhan +1
Recent observations from the James Webb Space Telescope (JWST) have uncovered massive galaxies at high redshifts, with their abundance significantly surpassing expectations. This f…
High-redshift JWST massive galaxies and the initial clustering of supermassive primordial black holes
Hai-Long Huang, Jun-Qian Jiang, Yun-Song Piao
In this paper, we show that the initial clustering of supermassive primordial black holes (SMPBHs) beyond a Poisson distribution can efficiently enhance the matter power spectrum,…
Search for the non-linearities of gravitational wave background in NANOGrav 15-year data set
Jun-Qian Jiang, Yun-Song Piao
The recently reported signal of common red noise between pulsars by several pulsar timing array collaborations has been thought as evidence of the stochastic gravitational wave bac…
Merger rate of supermassive primordial black hole binaries
Hai-Long Huang, Jun-Qian Jiang, Yun-Song Piao
The probability that the primordial black hole (PBH) binaries formed in the early Universe can be affected by the Hubble expansion of background, which is non-negligible when the n…
Broken blue-tilted inflationary gravitational waves: a joint analysis of NANOGrav 15-year and BICEP/Keck 2018 data
Jun-Qian Jiang, Yong Cai, Gen Ye +1
Recently, the pulsar timing array (PTA) collaborations have reported the evidence for a stochastic gravitational wave background (SGWB) at nano-Hertz band. The spectrum of inflatio…
Supermassive primordial black holes in multiverse: for nano-Hertz gravitational wave and high-redshift JWST galaxies
Hai-Long Huang, Yong Cai, Jun-Qian Jiang +2
Recently, observational hints for supermassive black holes have been accumulating, which has inspired ones to wonder: Can primordial black holes (PBHs) be supermassive, in particul…
Shape of CMB lensing in the early dark energy cosmology
Gen Ye, Jun-Qian Jiang, Yun-Song Piao
Recently, the cosmological tensions, and in particular, have inspired modification of both pre- and postrecombination physics simultaneously. Early dark energy is a pro…
Impact of the Hubble tension on the - contour
Jun-Qian Jiang, Gen Ye, Yun-Song Piao
The injection of early dark energy (EDE) before the recombination, a possible resolution of the Hubble tension, will not only shift the scalar spectral index towards ,…