Perimeter Welcomes New Faculty Member


Asimina Arvanitaki, previously of Stanford, studies “particle physics without the colliders.”

Perimeter Institute is pleased to welcome its newest faculty member, Asimina Arvanitaki, whose arrival brings Perimeter’s full-time faculty to 21.

“We are overjoyed that Dr. Arvanitaki has decided to join us at Perimeter,” says Perimeter Director Neil Turok. “She is an almost unique young scientist who is pioneering novel probes of fundamental physics. There is no substitute for experimental tests of our theories. Mina is a specialist in the conception and design of experiments and observations which open new windows onto the universe.”

Arvanitaki sums up her research as “particle physics without the colliders.”

“I was raised to do particle physics beyond the Standard Model – supersymmetry, extra dimensions, theories of dark matter, and the like,” says Arvanitaki. “For the last few years, I’ve been fascinated by new ways to test such theories.”

“Particle physics has been focused on colliders, and the so-called high-energy frontier. This has been greatly successful, culminating in the recent discovery of the Higgs particle. Nevertheless, there is a wide range of beyond the Standard Model phenomena that cannot be probed in colliders. For example, new particle states could interact much more weakly than what is required to be discovered at the LHC. So I am pushing for alternative ways to look for fundamental physics.”

Plenty of particle physicists work with instruments that aren’t colliders, of course. There are neutrino detectors and direct dark-matter detectors, for instance. But Arvanitaki pushes the idea further.

“What is new in my approach is using technologies such as atom interferometry, quantum optomechanics, and nuclear magnetic resonance,” she says. “Many of these methods have seen great progress in the last few years. Some of the experiments I propose could not even have been conceived of 10 years ago.”

For instance, Arvanitaki has pioneered the use of optically levitated dielectric objects (that is, tiny mirrors, held by light from lasers) to detect gravitational waves. She is currently thinking about ways in which high precision magnetometers can be used to detect forces mediated by axions, a possible component of dark matter, and how optical clocks can be used as dark matter detectors.

“Developing these ideas requires working outside my natural comfort zone of particle theory,” says Arvanitaki. “This is scary, but also refreshing and fun!”

At the same time, she is working on purely theoretical problems, such as the challenges raised by the most recent results from CERN. Arvanitaki has written extensively on “split SUSY,” a model of particle physics beyond the Standard Model which is motivated by ideas from string theory.

It is an unusual mix. “My research is broad and interdisciplinary, and in some ways it’s outside traditional views on beyond the Standard Model physics. I do sometimes feel like the odd one out,” Arvanitaki says. “But at Perimeter, diversity and new ideas in theory are what it’s all about. I am extremely excited and honoured to become part of such a team!”

Arvanitaki was born in Greece and did her undergraduate work at the University of Athens, before continuing to a graduate degree at Stanford University in California. She comes to Perimeter from the Stanford Institute for Theoretical Physics, where she was a research associate.

“We hope she’s bringing a coat and boots,” says Turok. “Welcome, Mina!”

 

About Perimeter Institute

Perimeter Institute for Theoretical Physics is an independent, non-profit, scientific research organization working to advance our understanding of physical laws and develop new ideas about the very essence of space, time, matter, and information. Located in Waterloo, Ontario, Canada, Perimeter also provides a wide array of research training and educational outreach activities to nurture scientific talent and share the importance of discovery and innovation among students, teachers, and the general public. In partnership with the Governments of Ontario and Canada, Perimeter is a successful example of public-private collaboration in scientific research, training, and outreach. http://www.perimeterinstitute.ca/

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