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One School, many schools of thought
Mark Trodden.

School of Arts & Sciences dean Mark Trodden joins faculty in discussion for Omnia’s latest podcast series.

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One School, many schools of thought

A special edition of the Penn Arts & Sciences “Ampersand” podcast features Dean Mark Trodden in conversation with SAS faculty from different disciplines.

Alex Schein

2 min. read

A new way to guide light
Researchers stand and point at a white board littered with equations.

Bo Zhen (right) and postdoctoral researcher Li He developed a system for guiding light through tiny crystals in ways that allow it to navigate undeterred bu bumps and defects. Their work could lead to sturdier lasers, faster data links, and light-based chips that don’t get tripped up by imperfections.

nocred

A new way to guide light

Penn researchers developed a system that allows light to be guided through a tiny crystal, undeterred by bumps, bends, and back-reflections. Their findings pave the way for robust, controllable light-based chips, smarter routing for data links, and more stable lasers.

3 min. read

Charles Kane to receive Lorentz Medal
Charles Kane

Charles Kane, Christopher H. Browne Distinguished Professor of Physics at Penn’s School of Arts & Sciences.

(Image: Brooke Sietinsons)

Charles Kane to receive Lorentz Medal

Awarded every four years by the Royal Netherlands Academy of Arts and Sciences, the medal honors Kane’s pioneering research on topological insulators.

3 min. read

Hunting for relics of a universe past
a spherical halo created by dark matter.

Image courtesy of ESO/L. Calçada

Hunting for relics of a universe past

In the lab of associate professor of physics and astronomy Robyn Sanderson, Alexandra DiMauro and Mariam Tskitishvili search for hints about dark matter and analyze data that could inform what is known about how stars form.

Laura Dattaro

2 min. read

Can data from the Large Hadron Collider snap string theory?
Close-up of ATLAS detector at CERN.

ATLAS’s wheel-like end-cap reveals the maze of sensors primed to catch proton smash-ups at the LHC. Researchers comb through billions of events in search of fleeting “ghost” tracks that might expose cracks in string theory.

(Image: Courtesy of CERN)

Can data from the Large Hadron Collider snap string theory?

Theoretical physicist Jonathan Heckman of the School of Arts & Sciences has put a spin on ideas related to testing string theory: Rather than looking to verify it, he and his collaborators sought a novel way to falsify it. Heckman and Ph.D. candidate Rebecca Hicks explain string theory, researchers’ quest to unify physics, and what their new paper puts forward.

10 min. read

Unlocking the mechanics of protein misfolding
Artist's interpretation of prion mechanics.

Mathieu Ouellet

Unlocking the mechanics of protein misfolding

An interdisciplinary team led by School of Engineering and Applied Science’s Lee C. Bassett and Dani Bassett, also of the School of Arts & Sciences, have studied the mechanical properties of prions, the mysterious shape-shifting proteins that are infamous for mad cow disease yet essential for yeast survival

5 min. read