Title: Gravitational Wave Symphony from Oscillating Spectator Scalar Fields Abstract: Spectator scalar fields can be generically present in the early Universe, and are potentially dark matter candidates. We investigate the prospect of such scalars as a generic source of stochastic gravitational wave background (SGWB) due to parametric resonance during their oscillation phase. By systematically analyzing […]
15-20 min long talks on astronomy-related papers, projects, ideas. Enjoy both Astronomy and Coffee (please bring your own mugs). If you have new results, ideas or want to discuss an interesting paper from arXiv, we encourage you to present. Spring 2024 schedule
High Energy Physics Theory Seminar: Yiming Chen Bloomberg 447 May 31, 2024 11:00 AM - 12:00 PM
We meet every Tuesday at 1pm, Eastern time, in the CafeCon (the conference room next to the STScI cafeteria), and also remotely using BlueJeans. We start with a talk by guest speaker for ~30 minutes, followed by paper discussion. Vote for what papers you want discussed on Benty-Fields. Sign up for e-mails by sending a […]
We meet every Tuesday at 1pm, Eastern time, in the CafeCon (the conference room next to the STScI cafeteria), and also remotely using BlueJeans. We start with a talk by guest speaker for ~30 minutes, followed by paper discussion. Vote for what papers you want discussed on Benty-Fields. Sign up for e-mails by sending a […]
We meet every Tuesday at 1pm, Eastern time, in the CafeCon (the conference room next to the STScI cafeteria), and also remotely using BlueJeans. We start with a talk by guest speaker for ~30 minutes, followed by paper discussion. Vote for what papers you want discussed on Benty-Fields. Sign up for e-mails by sending a […]
"Programmable Emulsions By Design" Presented by Jasna Brujic, a leading soft condensed matter experimentalist from NYU
Host: Yi Li Critical Filaments and Fractal-Mediated Superconductivity in Quasiperiodic Twisted Bilayer Graphene The electronic properties of quantum materials depend on the symmetry, topology, and spatial structure of electron wave functions. It was previously shown that superconductivity can be boosted by spatially rarified wave functions shaped by random or structured inhomogeneity. Recently, the twisting of […]
Title: Neutron studies of SrCu2(BO3)2 under extreme conditions–a fruit fly for quantum many body physics Abstract: Neutron spectroscopy offer a unique insight into the emergent quantum phases and entangled dynamics in quantum materials. A textbook example is offered by the compound SrCu2(BO3)2 realizing the theoretical Shastry-Sutherland model, which reveal a plethora of intriguing phenomena including: […]
Title: Tensor network simulation in strongly correlated systems: past, present and future Abstract: Tensor network states are new kinds of variational wavefunctions that help us to understand quantum phases and phase transitions beyond Landau paradigm. In this talk, I will first review the major development of tensor network simulation in the past two decades. […]
Title: “Topological Crystalline Markers for Rotational-Symmetric Insulators” Abstract: “Topological insulators are materials with unique properties, featuring gapless boundary modes despite having a gapped bulk. When translational symmetry is intact, their topologically non-trivial characteristics can be identified using momentum-space based topological invariants. Yet, challenges arise when bulk disorder and defects break translational symmetry, making momentum-space approaches […]
TITLE: Impact of primordial magnetic fields on matter power spectrum ABSTRACT: Primordial magnetic fields (PMFs) offer a simple explanation for the origin of galactic magnetic fields as well as of the purportedly detected magnetic fields in cosmic voids. In the talk, I discuss how PMFs' influence on structure formation can offer a complementary method to […]