What's up in

quantum mechanics

Art for "New Quantum Paradox Clarifies Where Reality Goes Wrong"
quantum mechanics

New Quantum Paradox Clarifies Where Our Views of Reality Go Wrong

The Frauchiger-Renner thought experiment has shaken up the world of quantum foundations.

Multimedia

Quanta Writers and Editors Discuss Trends in Science and Math

On November 16, 2018, more than 200 readers joined writers and editors from Quanta Magazine for a wide-ranging panel discussion that examined the newest ideas in fundamental physics, biology and mathematics research.

A still from an animated illustration of electrons dispersing through a cuprate sample.
condensed matter physics

Universal Quantum Phenomenon Found in Strange Metals

Experiments suggest that exotic superconducting materials share a “strange metal” state characterized by a quantum speed limit that somehow acts as a fundamental organizing principle.

Art for "Why the Many-Worlds Interpretation Has Many Problems"
quantum mechanics

Why the Many-Worlds Interpretation Has Many Problems

The idea that the universe splits into multiple realities with every measurement has become an increasingly popular proposed solution to the mysteries of quantum mechanics. But this “many-worlds interpretation” is incoherent, Philip Ball argues in this adapted excerpt from his new book Beyond Weird.

Art for "‘Quantum Atmospheres’ May Reveal Secrets of Matter"
quantum mechanics

‘Quantum Atmospheres’ May Reveal Secrets of Matter

A new theory proposes that the quantum properties of an object extend into an “atmosphere” that surrounds the material.

quantum mechanics

Closed Loophole Confirms the Unreality of the Quantum World

A quickly closed loophole has proved that the “great smoky dragon” of quantum mechanics may forever elude capture.

Illustration for "Real-Life Schrödinger’s Cats Probe the Boundary of the Quantum World"
quantum mechanics

Real-Life Schrödinger’s Cats Probe the Boundary of the Quantum World

Recent experiments have put relatively large objects into quantum states, illuminating the processes by which the ordinary world emerges out of the quantum one.

Illustration for thermodynamics
Abstractions blog

Quantum Correlations Reverse Thermodynamic Arrow of Time

A recent experiment shows how quantum mechanics can make heat flow from a cold body to a hot one, an apparent (though not real) violation of the second law of thermodynamics.

Photo of Stephen Hawking in 1979 in Princeton, New Jersey.
Abstractions blog

Why Stephen Hawking’s Black Hole Puzzle Keeps Puzzling

The renowned British physicist, who died at 76, left behind a riddle that could eventually lead his successors to the theory of quantum gravity.