What's up in
Quantum Theory Rebuilt From Simple Physical Principles
Physicists are trying to rewrite the axioms of quantum theory from scratch in an effort to understand what it all means. The problem? They’ve been almost too successful.
Joe Polchinski’s Restless Pursuit of Quantum Gravity
The pot-stirring string theorist and quantum gravity theorist never sits still for long.
Where Gravity Is Weak and Naked Singularities Are Verboten
Recent calculations tie together two conjectures about gravity, potentially revealing new truths about its elusive quantum nature.
Roberto Peccei and Helen Quinn, Driving Around Stanford in a Clunky Jeep
The two physicists who introduced Peccei-Quinn symmetry came up with their idea on and around Stanford University’s campus 40 years ago.