Mitchell Bredice
Advisor: Vasili Kharchenko
Thesis: “Kinetics, Nucleation, and Relaxation Dynamics of Ion-Seeded Nanoparticles”
Michael Davino
Advisor: Carlos Trallero
Thesis: “Strong-field Physics from Atoms to Nanoparticles”
Ashok Gurung
Advisor: Serge Nakhmanson
Thesis: “Predictive Multiscale Modeling of Dielectric and Electromechanical Properties in Electroactive Materials”
Zachary “Zoey” Harris
Advisor: Gerald Dunne
Thesis: “On the Application of Resurgence to Effective Actions in Quantum Field Theories”
Tianye Liu
Advisor: Philip Mannheim
Thesis: “Investigation of the Anisotropy of Cosmic Microwave Background Based on Conformal Cosmological Fluctuation and Associated Legendre Functions”
Brean Maynard
Advisor: Peter Schweitzer
Thesis: “Theoretical Studies of Hadron Structure”
Jonathan Mercedes
Advisor: Daniel Angles-Alcazar
Thesis: “The Impact of Quasar Fueling and Feedback at Cosmic Noon in Cosmological Hydrodynamic Simulations”
Daniel Norman
Advisor: Philip Mannheim
Thesis: “Investigation of the Analytic Structure of Conformal Cosmological Fluctuations”
Zhanna Rodnova
Advisor: Carlos Trallero
Thesis: “Towards New Mechanisms For The Generation of Long Wavelength Infrared Femtosecond Pulses”
Sebastian Seeds
Advisor: Andrew Puckett
Thesis: “The Two-Photon Exchange Contribution to Electron-Neutron Elastic Scattering (nTPE) and Extraction of GMn at Q^2 = 4.5 (GeV/c)^2 in Hall A at Jefferson National Lab”
Ravi Wickramathilake
Advisor: Vernon Cormier
Thesis: “Seismic Attenuation and Scattering in Earth’s Inner Core : New Modeling and Interpretation”
Last year, I wrote to you as a new Interim Head of Physics and only barely a month into my appointment. During the past year, we conducted a search for a permanent head and I was selected. For this, I am very grateful for the trust and support I received from the department. The past year has been a bit of a rollercoaster: on the one hand, the complex budget situation has preoccupied the department heads and upper administration and student protests sparked discussions about free speech and activism on campus. On the other hand, the Physics Department had another excellent year in terms of research, teaching, and outreach and I had the pleasure of meeting several of our generous donors.
The most notable achievements of the past year were the election of Prof. Nora Berrah to the National Academy of Sciences, one of the highest honors in science, and her appointment as a UConn Board of Trustees Distinguished Professor, the highest honor at UConn. These will be celebrated at a special Edward Pollack Distinguished Lecture, on October 14, 2024, given by a longtime friend and colleague of Nora’s, Prof. Philip Bucksbaum, himself a member of the National Academy of Sciences and the Marguerite Blake Wilbur Professor in Natural Science at Stanford University.
A number of other faculty received notable awards this year. Prof. Moshe Gai will travel to Romania on a U.S. Fulbright Scholarship. Two faculty received awards from the College of Liberal Arts and Science (CLAS): Prof. Peter Schweitzer for Faculty Mentoring of Faculty and Prof. Erin Scanlon for promoting Climate, Diversity, Equity, and Inclusion. CLAS also funded a Diversity, Equity, and Inclusion Initiative: “UConn STARs (Science, Technology, and Astronomy Recruits),” Prof. Cara Battersby, PI.
We gave out our two undergraduate awards: the Katzenstein prize for the best undergraduate research paper went to Danya Alboslani and our Mark Miller award to fund a summer research project went to Leilani Ainsworth, working with Prof. Simone Colombo
We are fortunate to welcome two new faculty this year:
Assistant Professor Aleksandra Kuznetsova is currently a fellow at the Flatiron Institute and works on star and planet formation. She will join us this August.
Assistant Professor Shohini Bhattacharya currently holds an Oppenheimer Fellowship at Los Alamos National Laboratory in theoretical nuclear physics and will join us in January 2025.
This was also a great year for outreach. We welcomed over 100 enthusiastic second graders for a variety of hands-on activities, organized by Prof. Jason Hancock and Sarah Trallero. We held a viewing party for the opening of our newly renovated observatory, spearheaded by Prof. Matt Guthrie and we got permission to officially name it in honor of the late Prof. Cynthia Peterson, who funded and built the observatory in 1980. And, we had another exciting eclipse viewing party organized by Prof. Jonathan Trump – the second in seven years! We are looking forward to hosting CU*IP: Conference for Undergraduate Women and Under-represented Minorities in Physics, sponsored by the American Physical Society. It will take place in January2025 and is being organized by Prof. Nora Berrah, along with a large local organizing committee. Finally, I would like to cordially invite you to attend our 26th annual Katzenstein Distinguished Lecture on Friday, November 15, 2024, which will be held in our department. This year’s speaker is Professor Adam Riess from Johns Hopkins University where he is the Bloomberg Distinguished Professor. He was a joint winner, with Drs. Saul Perlmutter and Brian P. Schmidt, of the 2011 Nobel Prize for Physics, awarded “for the discovery of the accelerating expansion of the Universe.” I hope you can all attend and catch up on everything that is going on in the department and the Universe! I look forward to seeing you there.
Every year, the American Physical Society (APS) sponsors CU*IP – Conference for Undergraduate Women and Gender Minorities in Physics – at several locations around the country. This year, led by Prof. Nora Berrah, UConn Physics applied to host this national conference in Storrs and our proposal was accepted for January 24-26, 2025! The purpose of the conference is to bring together over 120 undergraduates from around the country to learn about many research areas in physics and also to lean many skills for pursuing a career in Physics or Science, such as networking, applying to graduate school, finding role models in academia or industry, learning how to succeed as an underrepresented minority, etc.
While the conference is partially funded by the APS, the host institution needs to raise a substantial amount of funds. So far, we have commitments from UConn, some generous donors, such as the Ed Eyler and Karen Greer foundation, alumnus Mark Miller, and the Del Boca family, as well as the American Association for the Advancement of Science, and Mirion Technologies.
The current members of the local organizing committee, composed of faculty, staff and students, are Cara Battersby, Tom Blum, Cameron Brady, Carrie Cichocki, Simone Colombo, Meg Davis, Elena Dormidontova, George Gibson, Matt Guthrie, Adam Kolano, Luchang Jin, Dani Lipman, Jessica Mitlehne, Michael Rozman, Dave Perry, Erin Scanlon, Peter Schweitzer, Juliette Stecenko, Sarah Trallero, Kaley Wilcox, Alan Wuosmaa and Nora Berrah.
The planned events demonstrate the Physics Department’s and UConn’s commitment to helping undergraduate women and gender minorities pursue physics following their undergraduate degree by providing them the opportunity to learn about different career tracks in STEM fields, graduate studies, and various professions in physics.
We will be very grateful to receive any donations to assist the Department in hosting the conference, which will be used to cover students’ meals, accommodation and travel, as well as the invited speakers’ and panelists’ travel and accommodation. Please visit our website at: https://physics.uconn.edu/cuwip/
Lawrence “Larry” Kappers, passed away on Friday, August 2, 2024. Professor Lawrence (Larry) Kappers (aka “Kap”) retired in 2009, having joined the UConn Physics Department in 1973. After receiving his Ph.D. from the University of Missouri-Columbia and completing postdoctoral appointments at the University of Minnesota and Oklahoma State University, he developed an active research program in the optical and ESR spectroscopy of color-centers in inorganic insulators. Larry later became interested in the optical properties of 3d ions at high pressure and developed a diamond-anvil cell to complete the spectroscopic measurements. He was especially proud of his service to the department as director of the Perkin-Elmer Program, which led to a Masters degree in Physics with a concentration in optics, and also his involvement with the collaborative program between the physics department and the Institute for Crystal Physics in Budapest, Hungary. Larry continued his productive research contributions with a project funded by Radiation Monitoring Devices, Inc. on the luminescent properties of scintillator materials.
The UConn STARs group visited Hartford Public High School (HPHS) to teach physics for a total of eight class periods from May 6th-9th, 2024. UConn brought 16 undergraduate students from the STARs program to HPHS for our annual outreach program, during which we interacted with about 100 high school students. We collaborated with physics teacher Dr. Thomas Longyear to develop four lesson plans on topics of: 1) Phases of Matter, 2) Waves, 3) Electrostatics, and 4) Gravity over the course of the academic year. During our visit to HPHS, the STARs participants led these engaging lesson plans with hands-on demos and activities, over the course of four days. The goal of the STARs program is to improve the retention of students from Historically Excluded Groups (HEGs) in physics at UConn by addressing key factors responsible for their attrition. We have academic year events that focus on social engagement, professional development, and community building. The STARs program just concluded its 3rd year, with consistent progress and growth, and is looking forward to continued growth in our fourth year!
Pictured below are the STARs participants and the HPHS students during our May 2024 visit.
Father Thaddeus J. Burch passed away May 14, 2024 in Wauwatosa, WI. He was 93 years old, a Jesuit for 75 years and a priest for 62 years. His life combined his deep religious faith with a quest and appreciation for the world of physics. In addition to his two bachelor’s degrees in philosophy and theology, he earned bachelor’s and master’s degrees in physics and then a PhD at Fordham University. His PhD thesis on “A Nuclear Resonance Study of Order-Disorder in Ferromagnetic Alloys” was completed in 1968 under the direction of Professor Joseph Budnick. In 1974, Joe left Fordham to become the department chair in physics at the University of Connecticut and Thaddeus joined him as a visiting professor and a member of the Institute of Materials Sciences from 1974 to 1976. The research they completed together over the years led to 41 peer-reviewed journal articles that used NMR to probe ferromagnetic materials. Father Burch later joined Marquette University and was a professor of physics, physics department chair, and dean of the graduate school. Professor Budnick remembers Father Burch as “a dedicated and gifted student at Fordham and a creative and interactive researcher in the lab. He was a genuinely wonderful person in every way.”
The University of Connecticut, Department of Physics is proud to announce the 26th Annual Katzenstein Distinguished Lecturer that will be on Friday, November 15th. For the details of the lecture see the Web Calendar post.
Adam Riess is a Bloomberg Distinguished Professor, the Thomas J. Barber Professor in Space Studies at the Krieger School of Arts and Sciences at Johns Hopkins University, a distinguished astronomer at the Space Telescope Science Institute and a member of the National Academy of Sciences. He received his bachelor’s degree in physics from the Massachusetts Institute of Technology in 1992 and his PhD from Harvard University in 1996. His research involves measurements of the cosmological framework with supernovae (exploding stars) and Cepheids (pulsating stars). Currently, he leads the SHOES Team in efforts to improve the measurement of the Hubble Constant and the Higher-z Team to find and measure the most distant type Ia supernovae known to probe the origin of cosmic acceleration.
In 2011, he was named a co-winner of the Nobel Prize in Physics and was awarded the Albert Einstein Medal for his leadership in the High-z Supernova Search Team’s discovery that the expansion rate of the universe is accelerating, a phenomenon widely attributed to a mysterious, unexplained “dark energy” filling the universe. The discovery was named by Science magazine in 1998 as “the Breakthrough Discovery of the Year.” His accomplishments have been recognized with a number of other awards, including a MacArthur Fellowship in 2008, the Gruber Foundation Cosmology Prize in 2007 (shared), and the Shaw Prize in Astronomy in 2006.
UConn physics professor Nora Berrah has been elected as a member of the National Academy of Science (NAS), becoming the fifth member from the UConn community to join the selective national society.
Members are elected “in recognition of their distinguished and continuing achievements in original research,” and the academy serves as an advisory board for the nation on issues relating to science and technology.
As a member of NAS, Berrah joins professor of economics Kathy Segerson, Dr. Cato Laurencin, Chief Executive Officer of The Connecticut Convergence Institute for Translation in Regenerative Engineering at UConn Health; Laurinda Jaffe, department chair and professor of cell biology at UConn Health; Dr. Se-Jin Lee, Presidential Distinguished Professor in the Department of Genetics and Genome Sciences at UConn Health; Mary Jane Osborn, professor of microbiology who died in 2019; and Henry N. Andrews, professor of botany who died in 2002.
“Membership in the NAS is one of the highest honors that can be given to a scientist,” says Ofer Harel, Interim Dean of the College of Liberal Arts and Sciences. “It is a recognition by peers and the academy of outstanding research achievements, and Nora absolutely falls into that category.”
Current academy members must nominate and vote for new members to join the academy, with no more than 120 members being elected each year.
“It’s just an unbelievably great honor,” says Berrah. “I feel very grateful for all the National Academy members who voted for me and for being elected.”
Berrah, the former department head of physics from 2014 to 2018, was elected in recognition of her research that focuses on ultrafast physical and chemical processes in quantum systems.
Berrah’s research has wide ranging impact
In her lab on campus, as well as at the Linac Coherent Light Source Free Electron Laser at SLAC National Accelerator Laboratory in Stanford, California, Berrah conducts “time resolved, photo-induced experiments to understand ultrafast fundamental mechanisms such as charge transfer, energy transfer, and proton transfer.”
The experiments measure super-fast reactions up to the femtosecond, or one quadrillionth of a second, as well as to the attosecond, or one quintillionth of a second which has important impacts on other scientific fields.
“We want to understand these processes, and ultimately we want to control them to achieve desired outcomes,” says Berrah. “I and my research group measure manifestations of quantum mechanics — using ultrafast lasers at the femtosecond and attosecond timescale to test fundamentals of quantum mechanics. Our research has a broad impact on chemistry, biology, material science, and environmental science.”
Berrah was also previously elected to the American Academy of Arts and Sciences and is a fellow of the American Association for the Advancement of Science. She earned a Davisson-Germer award from the American Physical Society and is a fellow of the American Physical Society.
She has also been an advocate for increasing the participation and retention of women in physics.
“I realized as an undergraduate student that there were just very few women, whether they’re undergraduate or graduate students, and it doesn’t make sense to me, because we all have a brain, and if we have an interest in physics, then we should pursue it,” says Berrah. “It’s a man-dominated field. And way back, women were not welcomed in physics.”
Over the course of her career, Berrah has worked to help women feel less isolated in the field, including serving as the chair of APS’ Committee on the Status of Women in Physics.
Berrah is currently chairing a committee in the physics department to organize a conference for undergraduate women and gender minorities in physics, that she says will occur January 24-26, 2025. She says it is an opportunity to help undergraduate women network and peer mentor with each other, so they don’t feel isolated, since they are often the only women in their classrooms.
The conference is a chance for women to learn together and become comfortable in the field, Berrah says.
“It’s important to mentor the next generation of women physicists and increase significantly their number,” says Berrah.
The initiation ceremony was held on Friday, April 26th. The event began at 3:00 with a pre-colloquium reception, followed by the colloquium at 4:00 in GW-002 and by the banquet and initiation ceremony at 6:00.
Once used for education and outreach for UConn faculty, students, and community members, the planetarium fell into disuse in the last several years, butDepartment of PhysicsAssistant Professor-in-ResidenceMatt Guthriehas been working hard with skilled facilities staff, including CLAS Facilities Team LeaderBrett DeMarchi, to bring this piece of UConn history back into working order.
The planetarium was built in 1954 and has served since as a hub for sharing astronomical information with UConn and surrounding communities. The late Professor Cynthia Peterson was the planetarium’s curator for many years; it was her favorite place on campus, and she regularly shared her enthusiasm for astronomy by hosting events there.
In 2022, when Guthrie first toured the facility with Physics Department Academic AssistantDave Perry, they were not sure what they would find and felt it was a shame the facility had fallen into disrepair. With encouragement from fellow physics faculty members Jon Trump and then Department Head Professor Barry Wells, Guthrie decided to take the project on, and together with Perry, DeMarchi, and others, they have been slowly but surely bringing the venerable planetarium back into campaigning shape.
“When I first toured the facility, it was still my first year at UConn full-time and I was looking for a project to dedicate all my free time to,” Guthrie says. “From the start, as I was doing research about it and learning more about Cynthia, I felt a sense of responsibility that if I was going to fill at least part of the hole that was left after she retired, we needed the proper recognition for everything that she had done, especially with the planetarium.”
The first time DeMarchi walked into the dome, he says it was like stepping back in time:
“It was almost pitch black and the antique projector was covered in dust — a unique piece of history to marvel at from a time when technology was much simpler!”
DeMarchi says a previous project study with a larger scope had a budget that was unfeasible, but he had some ideas to help keep the costs down while still freshening up the facility without major renovations to the existing structure. A new proposal was submitted to CLAS, accepted, and with funding, the project moved ahead.
Guthrie wanted to be sure the history of the planetarium was preserved, so, in the process of clearing out the facility to make way for new equipment, the team kept whatever they could for posterity, including the originalA1 Spitzstar and planet projector.
“We put the old projector on display in the physics department to make sure that we are not rewriting the history of the planetarium. That has been the guiding light for how I approach this project. We did buy a new projector, but we’re not changing the internal structure of the building,” says Guthrie.
Shortly after starting this project, Guthrie also started working on the UConnObservatoryand both projects have kept him very busy, but he says he is glad to be able to dedicate the time to get these resources back up and running for the department and community.
Guthrie also has student help, including Danya Alboslani (CLAS) ’24 who has helped with both renovation processes.
Alboslani first got involved as a sophomore wanting to learn more about the planetarium and observatory that no one seemed to have details about,
“I wanted to get more information about the planetarium on campus. UConn is a great school with astronomy professors who do amazing work, so if we have a planetarium and an alleged observatory, why don’t we use them?”
Alboslani connected with Guthrie and says working with him on the restoration projects has been amazing,
“Ever since I first contacted him, he’s made me feel very involved in the entire process. Professor Guthrie went out of his way to keep me updated on everything. I helped to write the memorial plaque about Professor Peterson — also a woman in STEM and UConn’s first women physics professor.”
Sealing up the dome and making the facility waterproof once again took a lot of effort, says DiMarchi. Thanks to the extensive collaborative efforts with UConn Facilities Operations, the planetarium is almost ready for action again. (Contributed photo)
A tricky issue was the planetarium’s 16-foot dome, which had to be resealed, but once that was resolved, Guthrie said the interior work could go ahead. Though it has been a slow process, Guthrie says the end is in sight. The internal painting was completed in January and the external painting will be done as soon as the weather warms up.
DeMarchi says the team is very appreciative of the extensive collaborative efforts from UConn Facilities Operations.
“Every Facilities Shop Supervisor that I contacted was on board to assist. Special thanks to Nate Bedard of Interior Renewals for his help with project coordination and flooring. Chris Gisleson and his team put a lot of effort into sealing the exterior of the dome. Jon Cooke researched the correct reflective paint needed for the interior of the dome and his team painted the structure. Jennifer Peshka provided testing and compliance guidance throughout.CLAS Shared Servicesstudent workers Cole Shillington (CLAS) ‘24 and Alex Gervais (CAHNR) ‘24 were a big help with various tasks that came up.”
Though they don’t have a firm launch date yet, Guthrie hopes they will be up and running by summertime. The team plans to install carpeting and purchase new chairs soon. Guthrie says they removed the old projector platform, which was about six feet in diameter, and Perry and Senior Machine Shop Engineer MachinistRay Celmerare working to make a sturdy stand that will have a small 18-inch footprint which will allow for more flexibility and accessibility in the space.
“Newer planetariums are structuring their seating charts as if there is a front of the building, and that’s where they project the main action of the show, where other things can happen around you,” Guthrie says. “We have the possibility of moving around to make it so that there is a front of the room. That depends on what we want to do and how the building evolves to meet our needs. I wanted to leave that possibility open.”
When deciding on what new projector to order, Guthrie says he chose a company that specializes in portable planetarium projectors, because other than being the oldest planetarium in the state, this is likely the state’s smallest permanent planetarium.
The planetarium’s new projector comes equipped with around 100,000 premade shows and makes it easy for users to design their own shows, so physics students and faculty can share their research and produce educational content for classes or outreach events. (Contributed photo)
“I went with this projector model because it’s perfect for the size of our dome. The new projector gives users access to around 100,000 pre-made shows, and a bonus is the software is easy to learn so users can write their own planetarium shows. What I’m hoping is that interested astronomy students will be able to lead outreach events with shows they have designed themselves and if they want to get involved it will be lower stress to learn how to use the projector within this cool piece of UConn history.”
Physics Ph.D. student Kelcey Davis is eager for the facility to open and says the astrophysics graduate students and faculty are all very passionate about what they do and are excited this project will provide the opportunity to engage with the public.
“I saw the projector for the first time just a few days ago and have driven it once. It’s operated by a video game controller, so it helps to be a nerd!” says Davis.
Davis works with theJames Webb Space Telescopeand hopes to develop shows that break down the big discoveries the telescope has made since first light and make them digestible to a broader audience.
“I’m excited to showcase some of the research I and others in the department are doing. NASA has come out with some cool visuals, and I’d love to share them. A great example is the flight to ‘Maisie’s galaxy,’ the most distant galaxy in theCosmic Evolution Early Release Science Survey (CEERS), which I work on. The light from this galaxy traveled 13.4 billion light years to reach us.”
Guthrie also has ideas for shows: for example, a simulated rocket launch. The projector can show the flight through clouds and the atmosphere and once the sound system is installed, viewers can feel what it’s like to blast off. Guthrie says he is planning to hold at least one show per week once everything is up and running, as long as the demand is there.
“What I once thought I wouldn’t be able to see before I graduate is now slowly becoming a reality,” says Alboslani. “With Professor Guthrie leading the restoration of the planetarium and observatory, I know that he will make an impact on the community and the university for years to come.”
Guthrie is excited for the future with both the observatory and the planetarium back in action.
“The observatory has incredible potential for completely changing the way that we do astrophysics research at UConn and the planetarium is completely different, but also super exciting. I can’t wait to see what this building is capable of.”
The project was made possible thanks to funding from the College of Liberal Arts and Sciences. ThePlanetarium schedulewill be updated with events once the facility is up and running. You can also keep up with events viaInstagram.