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condensed matter physics

The Quantum Secret to Superconductivity

In a virtuoso experiment, physicists have revealed details of a “quantum critical point” that underlies high-temperature superconductivity.


From Einstein’s Theory to Gravity’s Chirp

The path from a revolutionary set of equations to the detection of gravitational waves was strewn with obstacles and controversy, explains the physicist Daniel Kennefick — and the struggle continues.


Gravitational Waves Discovered at Long Last

Ripples in space-time have been detected a century after Einstein predicted them, launching a new era in astronomy.


Scientists Debate Signatures of Alien Life

Searching for signs of life on faraway planets, astrobiologists must decide which telltale biosignature gases to target.


Taming Superconductors With String Theory

The physicist Subir Sachdev borrows tools from string theory to understand the puzzling behavior of high-temperature superconductors.


Quantum Weirdness Now a Matter of Time

Bizarre quantum bonds connect distinct moments in time, suggesting that quantum links — not space-time — constitute the fundamental structure of the universe.


String Theory Meets Loop Quantum Gravity

Two leading candidates for a “theory of everything,” long thought to be incompatible, may be two sides of the same coin.

Quantized Columns

Time’s (Almost) Reversible Arrow

The irreversibility of time may be a clue as to what makes up the universe’s dark matter.


A Fight for the Soul of Science

If a theory can’t be tested, is it still science?