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quantum gravity

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An illustration of a black hole made out of computer circuits.
quantum information theory

In New Paradox, Black Holes Appear to Evade Heat Death

By George Musser
June 6, 2023
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The puzzling behavior of black hole interiors has led researchers to propose a new physical law: the second law of quantum complexity.

quantum gravity

The Physicist Who Glues Together Universes

By Charlie Wood
May 25, 2023
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Renate Loll has helped pioneer a radically new approach to quantum gravity. She assumes that the fabric of space-time is a blend of all possible fabrics, and she has developed the computational tools needed to calculate the far-reaching implications of that assumption.

quantum gravity

Wormhole Experiment Called Into Question

By Charlie Wood
March 23, 2023
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Last fall, a team of physicists announced that they had teleported a qubit through a holographic wormhole in a quantum computer. Now another group suggests that’s not quite what happened.

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.


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