CCPP events include astrophysics seminars, high energy seminars, experimental particle physics (hep-ex) seminars, Colloquium, CCPP Brown Bag, and some group meetings, informal talks, etc.. Events can be viewed with Events Daily,  Events List or Events Calendar format.

Upcoming Events

Gaia astrometry and dark objects in the Milky Way halo
Calvin Chen, New York University
Event Type: CCPP Brown Bag
Date: Monday, April 3, 2023
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

Event Type: AGN Research Group
Date: Monday, April 3, 2023
Time: 1:30 PM - 3:00 PM
Location: 726 Broadway, 901, Sm Conf

Grad Pheno Journal Club
Event Type: Other
Date: Monday, April 3, 2023
Time: 2:00 PM - 3:00 PM
Location: 726 Broadway, 902, Lg Conf

TBA
Amara McCune, UC Santa Barbara/Lawrence Berkeley National Lab
Event Type: Informal Astro Talk
Date: Monday, April 3, 2023
Time: 2:00 PM - 3:15 PM
Location: 726 Broadway, 940, CCPP Seminar
Abstract: TBA

Astro Journal Club
Event Type: Other
Date: Tuesday, April 4, 2023
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

Testing fundamental physics with gravitational waves
Mauro Pieroni, CERN
Event Type: Astro Seminar
Date: Tuesday, April 4, 2023
Time: 2:00 PM - 3:00 PM
Location: 726 Broadway, 940, CCPP Seminar
Abstract: My talk will start with a short introduction highlighting the relevance of Gravitational Waves (GWs), both resolvable and Stochastic GW Backgrounds (SGWBs), for cosmology. I will proceed by summarizing detection techniques and prospects with future interferometers. The bulk of my seminar focuses on describing some of my recent work (e.g., 2203.00566, 2112.06903) that show the ability of GWs to constrain fundamental/high-energy physics. The last part of my seminar will be devoted to conclusions and future perspectives for the research field.

HEP Journal Club
Event Type: Other
Date: Wednesday, April 5, 2023
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

Daniel Kapec, Harvard
Event Type: HEP Seminar
Date: Wednesday, April 5, 2023
Time: 2:00 PM - 3:00 PM
Location: 726 Broadway, 940, CCPP Seminar

Equity & Inclusion Committee
Event Type: Other
Date: Thursday, April 6, 2023
Time: 12:30 PM - 2:00 PM
Location: 726 Broadway, 901, Sm Conf

Quantum Computing Using Electron Spins in Silicon
Mark Eriksson, University of Wisconsin-Madison
Event Type: Physics Dept Colloquium
Date: Thursday, April 6, 2023
Time: 4:00 PM - 5:30 PM
Location: 726 Broadway, 940, CCPP Seminar
Abstract: Quantum computing is based on the manipulation of quantum bits – qubits – that are two-level systems meeting a set of stringent requirements known as the DiVincenzo criteria. As much as possible, qubits must be isolated from their environment in order to preserve quantum coherence. Remarkably, the techniques used to make classical silicon CMOS devices can be used to make qubits with excellent performance. The operation of these devices, on the other hand – from the required temperatures to the number of electrons comprising a typical qubit – is very different from what is found in even the most advanced classical integrated circuits. In this talk I will present both a short historical overview of how quantum computing in silicon has developed, as well as the latest results from both our group at Wisconsin and from around the world. I will emphasize the role of integration, including 3D integration, which enables readout of qubits formed in Si/SiGe heterostructures by measuring the microwave transmission of a superconducting resonator that is hosted on a separate substrate. That resonator chip is flip-chip bonded to the qubit chip, creating a stacked set of integrated semiconductor and superconductor circuits. I will close this talk by discussing very recent results demonstrating the remarkable properties of silicon quantum wells containing short wavelength oscillations in the concentration of added germanium atoms. Advances like these have, in just the last few years, demonstrated that a future quantum computing technology in silicon will likely integrate sophisticated techniques and knowledge cutting across many disciplines, not only from physics and computer science, but also from electrical engineering and materials science – a feature that makes it an incredibly dynamic (and fun!) field of science and technology.

Zare
Event Type: HEP Discussion Sessions
Date: Friday, April 7, 2023
Time: 3:30 PM - 5:30 PM
Location: 726 Broadway, 901, Sm Conf

To Be Determined
Conghuan Luo, New York University
Event Type: CCPP Brown Bag
Date: Monday, April 10, 2023
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

Event Type: AGN Research Group
Date: Monday, April 10, 2023
Time: 1:30 PM - 3:00 PM
Location: 726 Broadway, 901, Sm Conf

Grad Pheno Journal Club
Event Type: Other
Date: Monday, April 10, 2023
Time: 2:00 PM - 3:00 PM
Location: 726 Broadway, 902, Lg Conf

Astro Journal Club
Event Type: Other
Date: Tuesday, April 11, 2023
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

HEP Journal Club
Event Type: Other
Date: Wednesday, April 12, 2023
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

TBA
Matt Reece, Harvard
Event Type: HEP Seminar
Date: Wednesday, April 12, 2023
Time: 2:00 PM - 3:00 PM
Location: 726 Broadway, 940, CCPP Seminar
Abstract: TBA

Cosmic Happy Hour
Event Type: Off-campus Event
Date: Wednesday, April 12, 2023
Time: 8:00 PM - 9:00 PM
Location: Book Club, 197 East 3rd Street
Abstract: Join us for a night of intrigue and science as we discuss all things astronomy. Grab a drink, sit back, make a friend, and enjoy our featured guest speaker of the evening, Cara Giovanetti! Cara Giovanetti studies dark matter as a Ph.D. candidate at New York University. Cara focuses on dark matter signals that come from the early universe, using computational tools and existing data to learn more about this mysterious type of matter. Cara also participates in a variety of science outreach, and has appeared on NSF Discovery Files and The Academic Minute podcasts. Cara will give us all an introduction to one of the most exciting and pressing open questions in physics today: what is dark matter? We’ll hear about some of the bizarre astrophysical phenomena that point towards the existence of dark matter, and get some insight into why physicists are so interested in this enigmatic particle. Link: https://bookclubbar.com/events/24796

Equity & Inclusion Committee
Event Type: Other
Date: Thursday, April 13, 2023
Time: 12:30 PM - 2:00 PM
Location: 726 Broadway, 901, Sm Conf

Capillary Attraction Underlies Bacterial Collective Dynamics
Ned Wingreen, Princeton University
Event Type: Physics Dept Colloquium
Date: Thursday, April 13, 2023
Time: 4:00 PM - 5:30 PM
Location: 726 Broadway, 940, CCPP Seminar
Abstract: “Water is the driving force of all nature.” — Leonardo da Vinci Collective motion of active matter occurs in many living systems, such as bacterial communities, epithelial cell populations, bird flocks, and fish schools. A remarkable example can be found in the soil-dwelling bacterium Myxococcus xanthus. Key to the life cycle of M. xanthus cells is the formation of collective groups: they feed on prey in swarms and aggregate upon starvation. However, the physical mechanisms that keep M. xanthus cells together remains unclear. I’ll present a computational model to explore the role that capillary forces play in bacterial collective dynamics. The modeling results, combined with experiments, show that water menisci forming around bacteria mediate strong capillary attraction between cells. The model accounts for a variety of previously observed phases of collective dynamics as the result of a competition between cell-cell capillary attraction and cell motility. Finally, I’ll discuss the large-scale self-organization of bacterial populations and highlight the importance of capillary force in this process. Together, these results suggest that cell-cell capillary attraction provides a generic mechanism underpinning bacterial collective dynamics.

Zare
Event Type: HEP Discussion Sessions
Date: Friday, April 14, 2023
Time: 3:30 PM - 5:30 PM
Location: 726 Broadway, 901, Sm Conf

Event Type: AGN Research Group
Date: Monday, April 17, 2023
Time: 1:30 PM - 3:00 PM
Location: 726 Broadway, 901, Sm Conf

Grad Pheno Journal Club
Event Type: Other
Date: Monday, April 17, 2023
Time: 2:00 PM - 3:00 PM
Location: 726 Broadway, 902, Lg Conf

Astro Journal Club
Event Type: Other
Date: Tuesday, April 18, 2023
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

To be determined
Magdalena Siwek, Harvard University
Event Type: Astro Seminar
Date: Tuesday, April 18, 2023
Time: 2:00 PM - 3:00 PM
Location: 726 Broadway, 940, CCPP Seminar
Abstract: To be determined

HEP Journal Club
Event Type: Other
Date: Wednesday, April 19, 2023
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

TBA
David B Kaplan, U of Washington
Event Type: HEP Seminar
Date: Wednesday, April 19, 2023
Time: 2:00 PM - 3:00 PM
Location: 726 Broadway, 940, CCPP Seminar
Abstract: TBA

Equity & Inclusion Committee
Event Type: Other
Date: Thursday, April 20, 2023
Time: 12:30 PM - 2:00 PM
Location: 726 Broadway, 901, Sm Conf

Zare
Event Type: HEP Discussion Sessions
Date: Friday, April 21, 2023
Time: 3:30 PM - 5:30 PM
Location: 726 Broadway, 901, Sm Conf

To Be Determined
Kate Storey-Fisher, New York University
Event Type: CCPP Brown Bag
Date: Monday, April 24, 2023
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

Event Type: AGN Research Group
Date: Monday, April 24, 2023
Time: 1:30 PM - 3:00 PM
Location: 726 Broadway, 901, Sm Conf

Grad Pheno Journal Club
Event Type: Other
Date: Monday, April 24, 2023
Time: 2:00 PM - 3:00 PM
Location: 726 Broadway, 902, Lg Conf

Astro Journal Club
Event Type: Other
Date: Tuesday, April 25, 2023
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

To Be Determined
Maya Fishbach, University of Toronto
Event Type: Astro Seminar
Date: Tuesday, April 25, 2023
Time: 2:00 PM - 3:00 PM
Location: 726 Broadway, 940, CCPP Seminar

HEP Journal Club
Event Type: Other
Date: Wednesday, April 26, 2023
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

TBA
Soubhik Koumar, UC Berkeley + LBL
Event Type: HEP Seminar
Date: Wednesday, April 26, 2023
Time: 2:00 PM - 3:00 PM
Location: 726 Broadway, 940, CCPP Seminar
Abstract: TBA

Equity & Inclusion Committee
Event Type: Other
Date: Thursday, April 27, 2023
Time: 12:30 PM - 2:00 PM
Location: 726 Broadway, 901, Sm Conf

TBA
Babis Anastasiou, ETH Zurich
Event Type: Informal HEP Talk
Date: Friday, April 28, 2023
Time: 2:00 PM - 3:15 PM
Location: 726 Broadway, 940, CCPP Seminar

Zare
Event Type: HEP Discussion Sessions
Date: Friday, April 28, 2023
Time: 3:30 PM - 5:30 PM
Location: 726 Broadway, 901, Sm Conf

To Be Determined
Xuyao Hu, New York University
Event Type: CCPP Brown Bag
Date: Monday, May 1, 2023
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

Event Type: AGN Research Group
Date: Monday, May 1, 2023
Time: 1:30 PM - 3:00 PM
Location: 726 Broadway, 901, Sm Conf

Revelations from studies of low mass galaxies: dark matter and galaxy formation on small scales
Shany Danieli, Princeton University
Event Type: Astro Seminar
Date: Monday, May 1, 2023
Time: 2:00 PM - 3:00 PM
Location: 726 Broadway, 940, CCPP Seminar
Abstract: The number densities, structures, and internal dynamics of low-mass galaxies provide some of the most interesting clues to the nature of dark matter and the theory of galaxy formation on small scales. Up until recently, our understanding of low-mass galaxies has largely been informed by observations of dwarf galaxies that orbit our Milky Way galaxy. I will present novel observational efforts that now enable the discovery of such low surface brightness galaxies beyond our local galactic neighborhood. I will discuss some of the follow-up observations of these extragalactic low-mass galaxies, focusing on their dark matter content and intriguing globular cluster populations, revealing significant diversity and new astrophysical puzzles. I will conclude by discussing ongoing surveys that will be essential in mapping the census and properties of the general population of low-mass galaxies.

Grad Pheno Journal Club
Event Type: Other
Date: Monday, May 1, 2023
Time: 2:00 PM - 3:00 PM
Location: 726 Broadway, 902, Lg Conf

Astro Journal Club
Event Type: Other
Date: Tuesday, May 2, 2023
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

HEP Journal Club
Event Type: Other
Date: Wednesday, May 3, 2023
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

TBA
Linda Xu, UC Berkeley + LBL
Event Type: HEP Seminar
Date: Wednesday, May 3, 2023
Time: 2:00 PM - 3:00 PM
Location: 726 Broadway, 940, CCPP Seminar
Abstract: TBA

Equity & Inclusion Committee
Event Type: Other
Date: Thursday, May 4, 2023
Time: 12:30 PM - 2:00 PM
Location: 726 Broadway, 901, Sm Conf

Zare
Event Type: HEP Discussion Sessions
Date: Friday, May 5, 2023
Time: 3:30 PM - 5:30 PM
Location: 726 Broadway, 901, Sm Conf

Event Type: AGN Research Group
Date: Monday, May 8, 2023
Time: 1:30 PM - 3:00 PM
Location: 726 Broadway, 901, Sm Conf

TBA
Dam Thanh Son, U Chicago
Event Type: HEP Seminar
Date: Wednesday, May 10, 2023
Time: 2:00 PM - 3:00 PM
Location: 726 Broadway, 940, CCPP Seminar
Abstract: TBA

Equity & Inclusion Committee
Event Type: Other
Date: Thursday, May 11, 2023
Time: 12:30 PM - 2:00 PM
Location: 726 Broadway, 901, Sm Conf

Kate Storey-Fisher
Event Type: PhD Defense
Date: Wednesday, May 31, 2023
Time: 12:30 PM - 2:00 PM
Location: 726 Broadway, 940, CCPP Seminar

Supermassive black holes: where do they come from and how do they grow?
Chris Nagele, Haverford
Event Type: Informal Astro Talk
Date: Friday, June 9, 2023
Time: 11:00 AM - 12:15 PM
Location: 726 Broadway, 940, CCPP Seminar
Abstract: Supermassive black holes are thought to be one of the fundamental ingredients in galaxy evolution, yet due to the difficulty of direct observation, basic questions such as the origin and growth of these black holes remain unanswered. A promising explanation for the origin of supermassive black holes is the direct collapse hypothesis, where massive gas clouds in the early universe contract to form supermassive stars which then collapse to black holes and become the seeds for observed supermassive black holes. This scenario is difficult to probe observationally because of the extreme distances involved, but one possibility is the general relativistic supernova of a supermassive star, an event which is luminous enough to be observed at high redshift. I will present numerical models of the evolution, instability and explosion of supermassive stars and discuss prospects for direct and indirect observation with current and future telescopes. I will then describe another recent paper where we attempt to elucidate correlations between active galactic nuclei and the morphology of the host galaxy using a variational autoencoder, a technique from generative modeling. We identify a correlation between host galaxy morphology and AGN activity and thus demonstrate the potential for similar techniques to be applied to larger datasets from future telescopes.

Tidal disruption event light echoes in SDSS and DESI spectra
Or Graur, University of Portsmouth
Event Type: Special Seminar
Date: Wednesday, June 14, 2023
Time: 2:00 PM - 3:00 PM
Location: 726 Broadway, 940, CCPP Seminar

To be determined
Raffaella Margutti, UC Berkeley
Event Type: Astro Seminar
Date: Friday, September 1, 2023
Time: 2:00 PM - 3:00 PM
Location: 726 Broadway, 940, CCPP Seminar
Abstract: Fall date to be determined