Growing into a Physicist at UMD

Physics can sometimes come across as the business of cold, calculating geniuses. But it can often be joyful, fun, competitive, engaging and more. Physicists are normal people and each of them has a unique and evolving relationship with their discipline. 

University of Maryland physics graduate student Michael Winer has had a relationship with physics—and physics at UMD in particular—since he was a kid. He first came to UMD as a high school student pursuing his competitive spirit when physics was a fun challenge. Then over time, physics became something more nuanced for him. Now, he has returned to UMD to pursue physics as a career and is also helping introduce the joys of physics to a new generation of bright young minds.

As a kid growing up in Maryland, Winer didn’t have an innate passion for physics. But he did have mathematical talent and a competitive streak. Before getting into physics, he started participating in math competitions when a family friend roped him into a middle school math competition.Michael Winer. Credit: Jess WinerMichael Winer. Credit: Jess Winer

“It was the best thing I've ever been badgered into,” Winer said. “I really liked it, but unfortunately I was not the best at math. So I had to sort of differentiate myself if you will and become the physics guy.”

Winer’s math skills led him to attend Montgomery Blair High School in Silver Spring, Maryland, which has a magnet program that offers accelerated courses in science, mathematics and computer science. There, he got his first taste of physics competitions. 

The tests that make up the U.S. Physics Olympiad were the most challenging Winer had ever taken, but his success on the tests in 10th grade—and then again in 11th grade—brought him to nearby UMD where he met several other promising young physics students from across the country. Each year (excepting virtual camps due to COVID-19) UMD hosts students at a training camp where they study physics and have a chance to make the U.S. International Physics Olympiad (IPhO) team.

“In 10th grade, I was really just happy to be there, and it was probably one of the best weeks of my life,” Winer said. “I was just enjoying basking in the glow of all these brilliant people and having all these interesting discussions and learning all these things. And then in 11th grade, I was much more focused on being one of the brightest kids there, making International Physics Olympiad, and then trying to get a gold medal at the International Physics Olympiad.”

In 10th grade, he also took the online course Exploring Quantum Physics with Victor Galitski, a Chesapeake Chair Professor of Theoretical Physics in the Department of Physics at UMD and a Fellow of the Joint Quantum Institute. Thanks to his positive experience with those two opportunities, Winer ended up reaching out to Galitski and arranging to work on a research project under his mentorship.

He studied how phonons—the quantum particle of sound—interact with electrons, a topic that is essential to understanding what makes superconductors work. That research experience was a radically new experience for Winer. 

He said that he likes to warn young people that research is a completely different beast from what they might be used to from homework or student competitions. 

“There are all sorts of differences,” Winer said. “Maybe you'll be able to solve this in two hours, maybe this will take 200 years, no one knows. And that's a lot of ambiguity, you don't know what you need to know, and you are not just allowed to—but almost always sort of required to—change the question as you're going. It's a completely different experience.” 

That early experience provided inspiration, and by working alongside graduate students, he got a glimpse into the future he is now living.

“By far the most valuable thing was not actually the research but sitting in a room full of grad students,” Winer said. “Sitting in a room with grad students, I think, gives you an insight into academia that just doing physics doesn't. I think you would expect it to sort of destroy the romanticized version I had in my head, but it did not. In fact, to this day, watching other people do physics is very motivating to me and reminds me how much I love doing physics.”

After this first experience with physics research, his passion for physics started yielding tangible rewards. In his sophomore year, he earned a silver medal at IPhO. And then after another summer working with Galitski, he won a first-place medal and $150,000 in the Intel Science Talent Search as a high school senior. 

“Both of those were very, very happy for me,” Winer said. “I did not think I would do well at the Intel contest and was wrong about that. What's interesting is I cared so much about Physics Olympiad. I spent years and years and years dreaming about Physics Olympiad whereas this research prize really just fell in my lap. Like, at no point in my life until it was announced that I had won did I think I would win.” 

After graduating high school and studying physics at MIT, Winer has returned to UMD as a graduate student to tackle much more substantial research. He is working on theories that describe some of the complex physics that play out inside of materials. Working under the mentorship of Galitski and Brian Swingle, an adjunct assistant professor of physics at UMD who is also an assistant professor at Brandeis University, Winer is studying spectral statistics—the distinctive signature that the energy levels of quantum objects collectively imprint on observable properties—in chaotic quantum systems. While it takes much longer to solve the problems he is tackling now, he said he still finds the same joy in learning new physics as he did in his first research experience and studying for the IPhO.

At UMD, Winer has helped mentor two Montgomery Blair students. He said that in addition to helping the students, these experiences have helped him understand his relationship with his own advisors by being on the other side of the table.

He has also given back to the IPhO program by being a coach who both helps write the tests used to select participants and also mentors the selected students. 

Winer said that while his participation as a student in the IPhO was probably helpful in getting to his current position, he thinks that an important part of the event is that it gives kids an opportunity to have fun. 

“Like a sailing club doesn't, you know, justify itself as creating passion for the all-important sailing industry, right?” Winer said. “They just say, ‘The kids are having fun. Let's help some kids have fun.’ And I think we can't forget that. Like, I was a kid, I had a lot of fun. It's good when kids have fun.”

Winer’s advice to any high school students considering studying physics is to try participating in the Physics Olympiad and, if possible, to look for research opportunities with professional physicists.

“You hopefully will discover you like it or at least have the potential to like it,” Winer said. “Then you will grow as a scientist over the course of that and over the course of your college research, and over the course of your grad school research.”

Story by Bailey Bedford

Related news stories: https://www.washingtonpost.com/local/education/montgomery-physics-phenom-tried-not-to-faint-as-he-won-national-award/2015/03/15/550d9bc4-c7e4-11e4-b2a1-bed1aaea2816_story.html

Thomas Ferbel, 1937- 2022

Thomas Ferbel, a UMD visiting professor since 2013, died at his home on Saturday, March 12. He was 84.

Ferbel was born in 1937 in Radom, Poland. During the tumult of World War II, he and his family endured exile in a Russian gulag and later, a camp for displaced persons in Stuttgart. Eventually, Ferbel arrived in New York and received a B.A. in Chemistry from Queens College, CUNY, and his and Ph.D. in Physics from Yale University (where his favorite professor was Bob Gluckstern, later the chancellor of this campus and a professor of physics).Thomas FerbelThomas Ferbel

After a postdoctoral appointment at Yale, Ferbel accepted a faculty position at the University of Rochester in 1965.  While there, he received an Alfred P. Sloan Fellowship, a John S. Guggenheim Fellowship and an Alexander von Humboldt Prize.

He was elected a Fellow of the American Physical Society in 1984, and served as the U.S. program manager for the Large Hadron Collider from 2004-08.

In 2020, Ferbel described both his early years and his life as a physicist as part of the American Institute of Physics Oral History project. The transcript is available here: https://www.aip.org/history-programs/niels-bohr-library/oral-histories/46304

Bennewitz Named Finalist for Hertz Fellowship

Elizabeth Bennewitz, a first-year physics graduate student at JQI and QuICS, has been named a finalist for a 2022 Hertz Fellowship. Out of more than 650 applicants, Bennewitz is one of 45 finalists with a chance of receiving up to $250,000 in support from the Fannie and John Hertz Foundation.

The fellowships provide up to five years of funding for recipients pursuing a Ph.D. The foundation seeks(link is external) individuals who intend to tackle “major, near-term problems facing society.”Elizabeth Bennewitz (credit:  Dan Spencer)Elizabeth Bennewitz (credit: Dan Spencer)

“This whole group of finalists have accomplished so much, and I’m very humbled to be among other people starting their Ph.D.s who are also pursuing big problems in science,” says Bennewitz. “I'm very honored to be part of this finalist group.”

Bennewitz is working with JQI and QuICS Fellow Alexey Gorshkov and is interested in researching large collections of interacting quantum particles—what scientists call many-body quantum systems. These systems are important to understanding cutting-edge physics and quantum computer technologies and can also be the basis of simulations that could provide insights into complex problems in physics, material science and chemistry.

“During my PhD, I want to develop tools and techniques that help harness the computational power of quantum devices in order to simulate these large quantum many-body systems,” Bennewitz says. “I’m excited to be pursuing this research at Maryland because of its commitment to quantum information and quantum computing research as well as its rich collaboration between theorists and experimentalists.”

Bennewitz is just at the beginning of her graduate student career, but she has already started investigating how quantum simulators might be used to understand the interactions of the particles that are responsible for holding the nuclei of atoms together.

“I'm very happy for Elizabeth, and I'm honored and excited that she chose to work with my group,” Gorshkov says.

An announcement of the winning fellows is expected to be made in May.

“I'm very thankful for all the opportunities I had before I got here,” Bennewitz says. “I would not be where I am today without the support and guidance I received from my professors and peers at Bowdoin College and Perimeter.”

Original story by Bailey Bedford: https://jqi.umd.edu/news/jqi-graduate-student-finalist-hertz-fellowship

Kollár Awarded Sloan Research Fellowship

Assistant Professor Alicia Kollár has been awarded a prestigious 2022 Sloan Research Fellowship. This award is given to early career researchers by the Alfred P. Sloan Foundation to recognize distinguished performance and the potential to make substantial contributions to their field. Each fellowship provides $75,000 to support the fellow’s research over two years.

Kollár will use the fellowship to support her research into creating new synthetic materials that are designed using quantum physics and applied mathematics. These synthetic materials can reveal physics that is difficult or impossible to observe in traditional materials.

“What really excites me about this award is to see support for the more interdisciplinary side of my research,” Kollár says. “My original background is in quantum physics and that's been where my grant support has come from so far, but this Sloan award is focused on looking at questions at the intersection of math and physics.”Alicia Kollár Alicia Kollár

This line of Kollár’s research uses mathematical tools based on the field of graph theory—the study of relationships between objects (in terms of a “graph” made of “vertices” that are connected by “edges”). Researchers use the tools to produce stripped down descriptions of materials in terms of just nodes and their connections—like if there is a connection where electrons can hop between specific points in a material. These descriptions don’t care about the exact distance between atoms or molecules or their precise orientation relative to each other but only about what connections exist between points. This approach is useful for identifying overarching features of different types of materials and is especially helpful in sorting out which material properties are derived from the basic connections being investigated, as opposed to those related to the quirks of a material’s particular components.

This mathematical perspective allows researchers, like Kollár, to design abstract connections that should produce unique properties, but it isn’t easy to then translate the idea on a page into a material that has the exact desired connections. Going from pure math to a real material is much harder than the reverse process of stripping details away from a well-studied material; to do so requires the exhaustive work of recognizing and juggling all the idiosyncrasies of real chemistry. The details of all the possible choices of atoms and how they interact and arrange themselves makes matching the elegant mathematical design to a physical material prohibitively challenging.

So instead Kollár has focused on synthetic materials made of circuits of resonators and superconducting qubits that house traveling microwaves. These circuits easily recreate the flexible connections of graph-theoretic descriptions and can let the complex physics play out, revealing features that current simulations can’t calculate. Essentially, Kollár can custom design the desired connections in a synthetic material and see if the results are interesting instead of going through the hassle of searching for a chemical structure that naturally has the connections every time she wants to do a new experiment. She has even been able to create connections that simulate a negatively curved space—a space impossible to create in the lab because they have “more space” than our normal space.

The insights from these synthetic materials have the potential to reveal new material behaviors and to give researchers a better understanding of how to best use graph-theoretic techniques.

Besides making these synthetic materials she is also working to push the mathematical side of this approach, including identifying new mathematical rules that govern one dimensional graphs that might provide insights into codes used in quantum computing.

 “This Sloan Fellowship will give my group the opportunity to really dig in to optimizing how synthetic materials are made in order to make them as versatile a tool as possible,” Kollár says.

The Sloan fellowships are awarded to untenured teaching faculty who work in the fields of chemistry, computer science, Earth system science, economics, mathematics, neuroscience, physics, or a related field. Candidates are nominated by their colleagues, and then fellows are selected by an independent committee of researchers in the relevant field based on the candidates’ “independent research accomplishments, creativity, and potential to become leaders in the scientific community through their contributions to their field,” according to the Sloan website. Other UMD winners this year are Lei Chen of mathematics and Pratyush Tiwary of chemistry/biochemisty and IPST. 

“Today’s Sloan Research Fellows represent the scientific leaders of tomorrow,” says Adam F. Falk, president of the Alfred P. Sloan Foundation. “As formidable young scholars, they are already shaping the research agenda within their respective fields—and their trailblazing won’t end here.”

 

Original story by Bailey Bedford: https://jqi.umd.edu/news/jqi-fellow-kollar-awarded-sloan-research-fellowship

Eno Elected AAAS Fellow

Sarah Eno has been named a Fellow of the American Association for the Advancement of Science (AAAS). Election is an honor bestowed upon AAAS members by their peers in recognition of distinguished efforts to advance science or its applications.

Eno’s research has focused on precision studies of the properties of the W boson, tests of QCD using Z bosons, and searches for exotic particles predicted by theories of physics beyond the Standard Model. Other efforts have included improvement and simulations of calorimeters to better study the momentums of jets and of missing transverse energy, and studies of radiation damage in plastic scintillators.

Eno was cited by the AAAS for leadership and research in both detector and analysis development, enabling the discovery of the top quark and Higgs boson, and the search for new phenomena at high energy colliders.

"I am truly humbled that AAAS has decided my accomplishments are worthy of this honor," Eno said. "My work was enabled by the wonderful collaborations in which I worked and my wonderful colleagues and students here at U. Maryland.”Sarah EnoSarah Eno

Eno received her bachelor's degree from Gettysburg College and her Ph.D. from the University of Rochester for work on the AMY experiment in Tsukuba, Japan. She then accepted a post-doctoral appointment at the University of Chicago Enrico Fermi Institute, working on the CDF experiment. In 1993, Dr. Eno joined the University of Maryland as an Assistant Professor, and moved to the DØ experiment at Fermilab.  The discovery of the top quark—announced by the CDF and DØ teams in 1995—was a milestone in particle physics. Eno’s precise measurement of the decay width and mass of the electroweak W boson helped predict the mass of the top quark.

Since 1999, Eno has worked on the Compact Muon Solenoid (CMS) experiment of the Large Hadron Collider at CERN. In 2012, CERN announced experimental verification of the Higgs boson, and the 2013 Nobel Prize in Physics was awarded to François Englert and Peter W. Higgs, whose 1960s calculations determined that mass could not exist without the presence of such a particle.  Since 2020 she is also participating in the development of experiments for a potential new electron-positron collider at CERN (FCC-ee).

Eno’s accolades include selection as an Outstanding Junior Investigator by the U.S. Department of Energy in 1995 and an Alumni Achievement Award from Gettysburg College in 1999. She is a Fellow of the American Physical Society (APS) and a University of Maryland Distinguished Scholar-Teacher.  She has also been cited by the APS as an Outstanding Referee for exceptional work in the assessment of manuscripts.

“Sarah Eno is widely known as a leader in high energy physics, and this recognition from the AAAS befits her extensive career achievements,” said Steve Rolston, chair of the University of Maryland Department of Physics.

The honor of being elected a Fellow of AAAS began in 1874 and is acknowledged with a certificate and rosette, presented at the annual Fellows Forum at the AAAS Annual Meeting, scheduled this year for February 19. In addition to Eno, physics affiliate professor John B. Kogut, entomology chair Leslie Pick and environmental science and technology chair William Bowerman IV were elected.