Summary


1	Date	9/13/2019
2	Name	Physics Graduate Student Association
3	Affiliation	NIU
4	Home Page
5	Colloquium Title	Faculty Research Seminar
6	Abstract	3:30 - 3:40 \| Dr. Syphers - "Chicagoland Accelerator Science Traineeship Program” 3:40 - 3:50 \| Dr. Xiao - “Properties and applications of quantum and nanostructured materials” 3:50 - 4:00 \| Dr. Chakraborty - “Searching for New Physics at the Large Hadron Collider" 4:00 - 4:10 \| Dr. Erdelyi - “An electron and a proton walk into a magnetic field …" 4:10 - 4:20 \| Dr. Lurio - "Measuring protein dynamics with x-ray scattering movies" 4:20 - 4:30 \| Dr. Eads - “Probing the Standard Model and Beyond with the CMS and DUNE Experiments”
7	Host	Graduate Student Association
8
9	Date	10/11/2019
10	Name	Jeremiah Mans
11	Affiliation	University of Minnesota
12	Home Page	http://www.physics.umn.edu/people/jmmans.html
13	Colloquium Title	Searching for dark matter candidates with accelerators
14	Abstract	The existence of particle dark matter is now solidly established by astrophysical and cosmological observations. However, direct searches to date have not determined any of the key parameters of the particles involved, including the mass of the dark matter particles and the nature of any interaction with the particles of the standard model. Indeed, much of the most-promising phase space has been excluded by recent direct-detection experiments. In this talk, I will review the complementary role of current and proposed accelerator-based experiments to identify possible dark-matter candidates. Of particular interest is the proposed Light Dark Matter eXperiment (LDMX), which has a substantial technological connection to the HL-LHC collider program at CERN.
15	Host	Vishnu Zutshi
16
17	Date	10/18/2019
18	Name	Jason Hogan
19	Affiliation	Stanford University
20	Home Page
21	Colloquium Title	Atom interferometry for fundamental physics and gravitational wave detection
22	Abstract	Atom interferometry and atomic clocks have made impressive gains in sensitivity and time precision. The best atomic clocks have stability corresponding to a loss of less than one second in the lifetime of the universe. Matter wave interferometers have achieved record-breaking coherence times (seconds) and atomic wavepacket separations (over half a meter), resulting in a significant enhancement in accelerometer and gravity gradiometer sensitivity. Leveraging these advances, atomic sensors are poised to become a powerful tool for discovery in fundamental physics. I will highlight ongoing efforts to test aspects of general relativity and quantum mechanics, and search for new fundamental interactions. A particularly exciting direction is gravitational wave detection. I will describe the Mid-band Atomic Gravitational wave Interferometric Sensor (MAGIS) proposal and I will discuss MAGIS-100, a 100-meter tall atomic sensor being built that will serve as a prototype of such a detector.
23	Host	Graduate Student Association
24
25	Date	10/25/2019
26	Name	Alexander Valishev
27	Affiliation	Fermilab
28	Home Page
29	Colloquium Title	Accelerator and Beam Physics Research at Fermilab
30	Abstract	Fermilab, in parallel with operation of a world-leading particle accelerator complex for neutrino physics is developing a vision for the future facilities. To guide this development, an extensive R&D program in accelerator and beam physics is supported with a particular focus on beam intensity and brightness. This talk discusses selected elements of Fermilab's accelerator research including the experimental beam physics studies at the main complex, at the FAST/IOTA facility, and recent theoretical developments.
31	Host	Bela Erdelyi
32
33	Date	11/1/2019
34	Name	Taylor Hoyt
35	Affiliation	The University of Chicago, 5640 S Ellis Ave, Chicago IL, 60615
36	Home Page
37	Colloquium Title	The Carnegie Chicago Hubble Program: A New Measurement of the Hubble Constant using Red Giant Stars
38	Abstract	Since the discovery of the expanding universe, the classical measurement of the Hubble constant has relied on the Cepheid Leavitt Law. A century later, the Carnegie Chicago Hubble Program (CCHP) has established a new distance scale based on red giant branch (RGB) stars. These RGB stars exhibit remarkable regularity in their evolution, which culminates in a seconds-long thermonuclear runaway event, a Flash of Helium fusion, after which the luminosity of the RGB star plummets by over an order of magnitude. At the time of the Helium Flash, the luminosities of RGB stars are at their highest and are observed to be constant, a feature known as the Tip of the Red Giant Branch (TRGB). We observe this natural standard candle in the stellar halos of galaxies to calibrate the extragalactic distance scale for measurement of the Hubble Constant. In this talk, I will briefly summarize the status of the “Hubble Tension,” and present the methods and main results of the CCHP's TRGB program.
39	Host	Graduate Student Association
40
41	Date	11/8/2019
42	Name	Andrey Varlamov
43	Affiliation	University of Rome, Tor Vergata
44	Home Page
45	Colloquium Title	Physics in the Gastronomy Universe
46	Abstract	Physical principles are ubiquitous in the gastronomic universe. Here I will discuss some selected aspects to give an insight into this realm. In particular I will address questions like: How does heat propagate in a medium? What is the difference between baking a pizza in a traditional wood oven versus an electric one? Why does boiled meat taste so different from grilled one? How can one calculate the cooking time of the soft-boiled duck egg and spaghetti scientifically? Why is a toast with crystal glasses filled with sparkling wine not accompanied by a nice canorous sound? Why do professional baristas vary the degree of grinding of coffee beans depending on weather? [1] L.G. Aslamazov, A.A.Varlamov, „”The Wonders of Physics”, WSPC, Singapore, 2012. [2] A. Rigamonti, A.A. Varlamov, J. Villain, „Le Kaleidoscope de la Physique”, Belin, Paris, 2014. [3] Andrey Varlamov, Andreas Glatz and Sergio Grasso, “The physics of baking good pizza”, Phys. Educ. 53 (2018) 065011.
47	Host	Andreas Glatz
48
49	Date	12/6/2019
50	Name	Senior Projects Presentations
51	Affiliation	Department of Physics Northern Illinois University
52	Home Page
53	Colloquium Title	Phys 498 and Phys 499 Poster Presentations
54	Abstract	TBA
55	Host	Omar Chmaissem


1	Date	2/21/2020
2	Name	Norbert Linke
3	Affiliation	Joint Quantum Institute, University of Maryland
4	Home Page	http://linkelab.umd.edu
5	Colloquium Title	tba
6	Abstract	tba
7	Host	Graduate Student Association
8
9	Date	2/28/2020
10	Name	Imre Bartos
11	Affiliation	University of Florida
12	Home Page	https://people.clas.ufl.edu/imrebartos/
13	Colloquium Title	to be added later
14	Abstract	to be added later
15	Host	Graduate Student Association