Speaker 1: Kurmanbek Kaiyrbekov (from Brian Camley’s group) - Does nematic order allow groups of elongated cells to sense electric fields better? Speaker 2: Aniruddh Murali (from Francesca Serra’s group at SDU) – Cells around corners https://jhubluejays.zoom.us/j/93026415427?pwd=ZGo1ditSNjh6V1JFY2dWNlhTOStLQT09
Interphase Chromatin Undergoes a Local Sol-Gel Transition Upon Cell Differentiation Cell differentiation, the process by which stem cells become specialized cells, is associated with chromatin reorganization inside the cell nucleus. Here, we measure the chromatin distribution and dynamics in embryonic stem cells in vivo before and after differentiation. We find that undifferentiated chromatin is less compact, more […]
Special Condensed Matter Seminar Speaker: Allen Scheie Title: "The old and the new: Probing elemental gadolinium and quantum entanglement with neutron scattering" Abstract: Doing experiments on quantum materials often not nearly as hard as interpreting those experiments. In this talk I discuss two projects where neutron scattering data was analyzed in a new way to […]
Informal science discussions and coffee, open to the entire department.
Title: Beyond LCDM: New constraints on new components Abstract: Are dark matter and dark energy the only cosmological constituents that lie beyond the Standard Model? It has been suggested that dark matter and dark energy are parts of a more extensive hidden sector that includes additional particles and fields. Since there are no direct observational […]
Roberto Maiolino (Cambridge) "The Fascinating Population of Infant Galaxies and Black Holes in the Early Universe Revealed by JWST"
Emergence of size in living cells The emergence of macroscopic phenomena from interactions of its microscopic components is a problem permeating much of modern physics. Successes include our understanding of phase transitions, while turbulence still remains mostly mysterious. In cell biology, for more than a hundred years, it has been observed that micron-sized structures within […]
Informal science discussions and coffee, open to the entire department.
Title: Stars under Einstein’s microscope: strong gravitational lensing near caustics Abstract: Rich clusters of galaxies are the largest gravitational magnifiers in the Universe. One of the most interesting gravitational lensing phenomena arises when background galaxies overlap with the lensing caustics cast by the galaxy cluster lens such that a portion of it is tremendously magnified […]
Title: New Pathways for Topological Flat Bands, and Roton Condensate in Fractional Quantum Anomalous Hall Systems Abstract: Recent studies on topological flat bands in moiré superlattices have revealed fascinating new phenomena, such as the fractional quantum anomalous Hall effect (FQAH). In this talk, we will discuss two interrelated topics: (1) new strategies for creating exact […]
All are welcome to join the Summit committee no matter if you are an active WiP member or not. This is a big event, so we appreciate any help you can provide. For those not familiar, the WiP Summit is an all day event where we invite physics and astronomy departments from our surrounding universities […]
Speaker 1: Alvin Modin (Leheny group) - Crafting planar optics by 3D photoalignment of nematic liquid crystals Speaker 2: Grace Luettgen (Camley group) – Bidirectional chemotaxis of malignant lymphocytes Zoom link: https://JHUBlueJays.zoom.us/j/93026415427?pwd=ZGo1ditSNjh6V1JFY2dWNlhTOStLQT09
Topology and “impossible” electronic devices Since the discovery of quantized Hall effects in the 1980s, topology has provided a useful new paradigm for understanding condensed matter systems, expanding our vocabulary for describing the distinctions between states of matter. I will focus on how topological properties can be harnessed to build otherwise impossible electronic devices--devices whose […]
JHU/STScI CAS Wine and Cheese Seminars take place in Bloomberg 462 every Monday at 3:30 pm Eastern. Each week, there will be either one speaker, giving an hour-long presentation (50+10), or two speakers, each giving a half hour (25+5) presentation. Hour-long speakers will be invited by the committee, and the half-hour speakers will comprise both […]
Informal science discussions and coffee, open to the entire department.
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 […]
Title: The hyperbolic tale of GW190521 Abstract: I will discuss the most enigmatic signal observed by the LIGO-Virgo-Kagra collaboration to date, GW190521, and the possibility that it was generated by the merger of two massive black holes in non-circular orbits. A critical comparison with the standard hypothesis of a quasi-circular binary will be presented, together […]
Title: Moiré magnetism in twisted two-dimensional magnets Abstract: Moiré superlattice emerges from the interference between two mismatched atomic lattices, and it has led to tremendous success in designing and tailoring the electronic states in two-dimensional (2D) homo- and hetero-structures. Yet, the power of moiré superlattice in controlling the spin degree of freedom and thus modifying the magnetic states is much less […]
Vivian U (UC Irvine) "New Insights on Multiphase Feedback in Galaxy Mergers"
Title: Photonic Pseudomagnetism and Landau Levels Abstract: When electrons moving in a two-dimensional plane are subject to a perpendicular magnetic field they move in circles called cyclotron orbits as a result of the Lorentz force. Treated quantum mechanically, these orbits become quantized like the orbitals of an atom, forming highly degenerate states called Landau levels. In this talk, […]
High Energy Physics Theory Seminar: Monica Kang Bloomberg 447 April 26, 2024 11:00 AM - 12:00 PM
Informal science discussions and coffee, open to the entire department.
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 […]
Title: “Higgs-Confinement Transitions in QCD from Symmetry Protected Topological Phases” Abstract: In gauge theories with fundamental matter, such as QCD, there is typically no sharp way to distinguish confining and Higgs regimes because there are no suitable order parameters. It is standard lore that these two regimes are continuously connected. In this talk I will […]