Cascade sets the stage for superconductivity in magic-angle twisted bilayer graphene

Princeton researchers used scanning tunneling microscopy to observe what happens when they add electrons to magic-angle twisted bilayer graphene. They observed a cascade of transitions in the electronic properties, patterns that could help unlock how superconductivity emerge in these materials. Continue Reading →

Mallika Randeria captures images of the quantum world

As a graduate student, Mallika Randeria conducted experiments to peer deep into the world of quantum physics. Continue Reading →

Princeton scientists discover surprising quantum effect in an exotic superconductor

Superconductors are already in use in various capacities, but newer iron-based superconductors are an active area of investigation. Researchers led by a Princeton team have studied what happens to the superconducting nature of these materials when impurities are added. The results shed light on how superconductivity behaves in these materials Continue Reading →

Princeton physicists discover topological behavior of electrons in three-dimensional magnetic material

In a room-temperature magnet, researchers find behaviors of electrons that mimic massless particles and anti-particles. Continue Reading →

A quantum magnet with a topological twist

Taking their name from an intricate Japanese basket pattern, kagome magnets are thought to have electronic properties that could be valuable for future quantum devices and applications. Theories predict that some electrons in these materials Continue Reading →

Controllable electron flow in quantum wires

Princeton University researchers have demonstrated a new way of making controllable “quantum wires” in the presence of a magnetic field, according to a new study published online today in the journal Nature. The researchers detected channels Continue Reading →

Finding meaning among the junk

By Kevin McElwee Only about 10 percent of the human genome are actually genes. The other 90 percent? Once called “junk DNA,” researchers now know that this genetic material contains on-off switches that can activate Continue Reading →

Eight win Guggenheim Fellowships

PHOTO CREDITS FROM LEFT TO RIGHT: TOP ROW: JOHN LUCAS, RICHARD SODEN, PETER HURLEY, HANNAH DUNPHY BOTTOM ROW: DAVID BROWN, NINA KATCHADOURIAN, DENISE APPLEWHITE, JILL DOLAN Eight Princeton faculty members have received 2017 Guggenheim Fellowships Continue Reading →

The Little Book of Black Holes

Authors: Steven Gubser and Frans Pretorius, professors of physics Publisher: Princeton University Press, October 2017 Black holes, predicted by Albert Einstein’s general theory of relativity more than a century ago, have long intrigued scientists and Continue Reading →

Atom catcher: With lasers and magnets, Waseem Bakr traps atoms for study under the microscope

By Bennett McIntosh THE COLDEST SPOT on the Princeton campus is a cluster of a few thousand atoms suspended above a table in Waseem Bakr’s laboratory. When trapped in a lattice of intersecting lasers at Continue Reading →

JEREMIAH OSTRIKER and LYMAN PAGE receive Gruber Cosmology Prize

The 2015 Gruber Foundation Cosmology Prize has been awarded to Jeremiah Ostriker and Lyman Page for “individual and collective contributions to the study of the universe on the largest scales.” The two share the prize Continue Reading →

Cosmic background: 51 years ago, an accidental discovery sparked a big bang in astrophysics

ON NEW YEAR’S DAY 2015, A BALLOON-BORNE SPACECRAFT ascended above Antarctica and snapped crisp photos of space, unobscured by the humidity of Earth’s atmosphere. Meanwhile, a telescope located 4,000 miles to the north, in the Continue Reading →

Imaging system tracks brain activity of a freely moving worm

TO EXPLORE HOW THE BRAIN controls behavior, researchers have for the first time captured the whole-brain activity of a freely moving animal, in this case a nematode worm called Caenorhabditis elegans. Using an imaging system Continue Reading →

Elusive particles found

IN THE PAST YEAR, PRINCETON PHYSICISTS have detected two particles that were predicted decades ago to exist but had not been found until now. Both particles were detected using a scanning-tunneling microscope to image the Continue Reading →

Striking resemblance: A physical law may govern very different biological activities

FLOCKS OF BIRDS FLY ACROSS THE SKY in shifting configurations. In the retina of an eye, millions of neurons ignite in ever-changing combinations, translating light into meaningful images. Yet both of these seemingly random behaviors Continue Reading →

Telescopes take the universe’s temperature

Two telescopes on a Chilean mountaintop are poised to tell us much about the universe in its infancy. They are surveying the faint temperature fluctuations left over from the explosive birth of the universe, with Continue Reading →

Planck mission brings universe into sharp focus

Princeton researchers contributed extensively to the Planck space mission that earlier this year released the most accurate and detailed map ever made of the oldest light in the universe, revealing new information about its age, Continue Reading →