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Deep dive into the atomic nucleus

Miguel Arratia, an assistant professor of physics and astronomy, has received a $508,000 grant from the U.S. Department of Energy to perform experiments using the electron accelerator facility at the Jefferson Laboratory, or JLab, in Newport News, Virginia, the world’s premier laboratory for imaging the subatomic structure of matter. “We will use an intense electron...

Machine learning NSF grant will help identify physical origins of noise in LIGO

Jonathan Richardson, an assistant professor of physics and astronomy; and Vagelis Papalexakis, an associate professor of computer science and engineering; have received a two-year, $300,000 grant from the National Science Foundation, or NSF, to develop novel machine-learning methods capable of analyzing the physical origins of noise in LIGO, the Laser Interferometer Gravitational-wave Observatory based at...

Department of Energy renewal grant supports student research at Brookhaven National Lab

Kenneth Barish, a professor of physics and astronomy, has received a three-year renewal grant of more than $1 million from the Department of Energy, or DOE, to support the activities of the Nucleon Spin Physics Group at UC Riverside. Physicists have made significant theoretical and experimental progress in understanding where the total spin of the...

Fourteen UC Riverside professors receive NSF CAREER Awards

Fourteen UC Riverside faculty members have received highly coveted National Science Foundation CAREER Awards. The number shatters UCR’s record for CAREER Awards set only last year. CAREER Awards are given to faculty members to fund research that is expected to form a firm foundation for a lifetime of leadership in integrating education and research. They...

Physics graduate student receives prestigious NASA fellowship

Ming-Feng Ho, a doctoral student in the Department of Physics and Astronomy, has received a three-year fellowship from Future Investigators in NASA Earth and Space Science and Technology, or FINESST, which supports research projects designed and performed by graduate students. Ho is one of 21 students to receive the prestigious fellowship out of 196 applicants...

Physicist receives NSF grant to develop instruments for gravitational wave detectors

Jonathan Richardson, an assistant professor of physics and astronomy, has received a grant of $480,000 from the National Science Foundation to develop advanced instrumentation for the Laser Interferometer Gravitational-wave Observatory, or LIGO, based at sites in Louisiana and Washington. Completed in 2002, LIGO detects gravitational waves — ripples in space that travel at the speed...
By Iqbal Pittalwala | Inside UCR |

How a supermassive black hole originates

Supermassive black holes, or SMBHs, are black holes with masses that are several million to billion times the mass of our sun. The Milky Way hosts an SMBH with mass a few million times the solar mass. Surprisingly, astrophysical observations show that SMBHs already existed when the universe was very young. For example, a billion...
By Iqbal Pittalwala | UCR News |

Trions exhibit novel characteristics in moiré superlattices

When two similar atomic layers with mismatching lattice constants — the constant distance between a layer’s unit cells — and/or orientation are stacked together, the resulting bilayer can exhibit a moiré pattern and form a moiré superlattice. Moiré patterns are interference patterns that typically arise when one object with a repetitive pattern is placed over...

A new dimension in the quest to understand dark matter

As its name suggests, dark matter — material which makes up about 85% of the mass in the universe — emits no light, eluding easy detection. Its properties, too, remain fairly obscure. Now, a theoretical particle physicist at the University of California, Riverside, and colleagues have published a research paper in the Journal of High...
By Iqbal Pittalwala | UCR News |

Veteran and community college transfer student heads to UCLA for graduate studies

When he joined the U.S. Navy in 2010, Mychal Valle didn’t think he would ever return to school. After all, he got to work on new radar technologies in the navy and got recognized for writing technical manuals. But by the time he left the navy in 2016, Valle’s service helped him discover his passion...
By Iqbal Pittalwala | UCR News |

Algorithm helps speed up simulation of vast, complex universes

Simeon Bird, an assistant professor of physics and astronomy at UC Riverside, is a member of a team of astrophysicists that has used machine learning to simulate the universe with high resolution in a thousandth of the time conventional methods would take. The researchers uploaded models of a small region of space at both low...
By Iqbal Pittalwala | Inside UCR |

New Application of Artificial Intelligence Just Removed One of the Biggest Roadblocks in Astrophysics

Using a bit of machine learning magic, astrophysicists can now simulate vast, complex universes in a thousandth of the time it takes with conventional methods. The new approach will help usher in a new era in high-resolution cosmological simulations, its creators report in a study published online May 4 in Proceedings of the National Academy...
By Thomas Sumner | Simons Foundation |

‘Twisting’ atomic materials may convert light into electricity

A pair of physicists at the University of California, Riverside, are aiming to convert light falling on atomically thin semiconductor materials into electricity, having received more than $582,000 in funding from the U.S. Department of the Army. Nathaniel Gabor and Vivek Aji, both associate professors of physics and astronomy, will focus on how the fundamental...
By Iqbal Pittalwala | UCR News |

Researchers use a nanoscale synthetic antiferromagnet to toggle nonlinear spin dynamics

Researchers at the University of California, Riverside, have used a nanoscale synthetic antiferromagnet to control the interaction between magnons — research that could lead to faster and more energy-efficient computers. In ferromagnets, electron spins point in the same direction. To make future computer technologies faster and more energy-efficient, spintronics research employs spin dynamics — fluctuations...
By Iqbal Pittalwala | UCR News |

Physicist helps prepare report on new kind of particle accelerator

Kenneth N. Barish, a professor of physics and astronomy, is a key member of an international team of more than 400 scientists that prepared a report on the Electron-Ion Collider, or EIC, a particle accelerator that will be built at Brookhaven National Laboratory in New York, along with a detector for capturing electron-ion collisions. Barish...
By Iqbal Pittalwala | Inside UCR |

Searching for elusive supersymmetric particles

The Standard Model of particle physics is the best explanation to date for how the universe works at the subnuclear level and has helped explain, correctly, the elementary particles and forces between them. But the model is incomplete, requiring “extensions” to address its shortfalls. Owen Long, a professor of physics and astronomy at the University...
By Iqbal Pittalwala | UCR News |

Moiré patterns facilitate discovery of novel insulating phases

Materials that have excess electrons are typically conductors. However, moiré patterns — interference patterns that typically arise when one object with a repetitive pattern is placed over another with a similar pattern — can suppress electrical conductivity, a study led by physicists at the University of California, Riverside, has found. In the lab, the researchers...
By Iqbal Pittalwala | UCR News |

Astronomers offer possible explanation for elusive dark-matter-free galaxies

A team led by astronomers at the University of California, Riverside, has found that some dwarf galaxies may today appear to be dark-matter free even though they formed as galaxies dominated by dark matter in the past. Galaxies that appear to have little to no dark matter — nonluminous material thought to constitute 85% of...
By Iqbal Pittalwala | UCR News |

Evolving the Early Universe in 24 Hours on Frontera

The Texascale Days event in December 2020 provided an opportunity for nine research groups to use large sections of the National Science Foundation-funded Frontera supercomputer at the Texas Advanced Computing Center (TACC) to solve problems that in many cases have never been attempted. Simeon Bird, professor of physics and astronomy at the University of California...
By Simeon Bird |
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