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quantum gravity

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An illustration representing an eye at the center of a black hole, observing a quantum particle outside the black hole.
quantum gravity

Black Holes Will Eventually Destroy All Quantum States, Researchers Argue

By Thomas Lewton
March 7, 2023
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New calculations suggest that the event horizons around black holes will ‘decohere’ quantum possibilities — even those that are far away.

Illustration in which a bright red line results from many wavelike ripples overlapping.
explainers

How Our Reality May Be a Sum of All Possible Realities

By Charlie Wood
February 6, 2023
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Richard Feynman’s path integral is both a powerful prediction machine and a philosophy about how the world is. But physicists are still struggling to figure out how to use it, and what it means.

2022 in Review

The Year in Physics

By Natalie Wolchover
December 22, 2022
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In a year filled with sweet new observations in astronomy and tantalizing breakthroughs in condensed matter physics, the brand-new space telescope takes the cake.

quantum gravity

Physicists Create a Holographic Wormhole Using a Quantum Computer

By Natalie Wolchover
November 30, 2022
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The unprecedented experiment explores the possibility that space-time somehow emerges from quantum information.

quantum gravity

Black Hole's Orbiting Ring of Light Could Encrypt Its Inner Secrets

By Thomas Lewton
September 8, 2022
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Physicists have discovered that the ring of photons orbiting a black hole exhibits a special kind of symmetry, hinting at a deeper meaning.

Illustration of planets and other objects floating above the deformable sheet of space-time.
The Joy of Why

Where Do Space, Time and Gravity Come From?

By Steven Strogatz
May 4, 2022
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Einstein’s description of curved space-time doesn’t easily mesh with a universe made up of quantum wavefunctions. Theoretical physicist Sean Carroll discusses the quest for quantum gravity with host Steven Strogatz.

A man sits at a table in the middle of a wood-paneled library, perusing a large book.
Q&A

Pondering the Bits That Build Space-Time and Brains

By Charlie Wood
April 20, 2022
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Vijay Balasubramanian investigates whether the fabric of the universe might be built from information, and what it means that physicists can even ask such a question.

A red laser beam enters a glass cube and splits in two; half of the beam continues straight ahead and the other half shoots out of the glass cube at a right angle.
particle physics

A New Tool for Finding Dark Matter Digs Up Nothing

By Thomas Lewton
March 21, 2022
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Physicists are devising clever new ways to exploit the extreme sensitivity of gravitational wave detectors like LIGO. But so far, they’ve seen no signs of exotica.

particle physics

A Deepening Crisis Forces Physicists to Rethink Structure of Nature’s Laws

By Natalie Wolchover
March 1, 2022
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Physicists are reexamining a longstanding assumption: that big stuff consists of smaller stuff.


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