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quantum interpretations

quantum physics

How Big Can the Quantum World Be? Physicists Probe the Limits.

By Philip Ball
August 18, 2021
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By showing that even large objects can exhibit bizarre quantum behaviors, physicists hope to illuminate the mystery of quantum collapse, identify the quantum nature of gravity, and perhaps even make Schrödinger’s cat a reality.

A stylized atom surrounded by concentric shells of increasingly complex organisms.
quantum physics

A New Theorem Maps Out the Limits of Quantum Physics

By Anil Ananthaswamy
December 3, 2020
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The result highlights a fundamental tension: Either the rules of quantum mechanics don’t always apply, or at least one basic assumption about reality must be wrong.

An illustration of a pink hand reaching for quantum dice.
Quantized Columns

Where Quantum Probability Comes From

By Sean Carroll
September 9, 2019
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There are many different ways to think about probability. Quantum mechanics embodies them all.

Art for "Mysterious Quantum Rule Reconstructed from Scratch"
quantum physics

Mysterious Quantum Rule Reconstructed From Scratch

By Philip Ball
February 13, 2019
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The new work promises to give researchers a better grip on the core mystery of quantum mechanics.

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

New Quantum Paradox Clarifies Where Our Views of Reality Go Wrong

By Anil Ananthaswamy
December 3, 2018
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The Frauchiger-Renner thought experiment has shaken up the world of quantum foundations.

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

Why the Many-Worlds Interpretation Has Many Problems

By Philip Ball
October 18, 2018
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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 "Famous Experiment Dooms Alternative to Quantum Weirdness"
quantum physics

Famous Experiment Dooms Alternative to Quantum Weirdness

By Natalie Wolchover
October 11, 2018
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Oil droplets guided by “pilot waves” have failed to reproduce the results of the quantum double-slit experiment, crushing a century-old dream that there exists a single, concrete reality.

quantum physics

Closed Loophole Confirms the Unreality of the Quantum World

By Anil Ananthaswamy
July 25, 2018
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A quickly closed loophole has proved that the “great smoky dragon” of quantum mechanics may forever elude capture.

Quantum reconstruction
quantum physics

Quantum Theory Rebuilt From Simple Physical Principles

By Philip Ball
August 30, 2017
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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.


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