black hole information paradox – Quanta Magazine

Quantum Complexity Shows How to Escape Hawking’s Black Hole Paradox

Charlie Wood — Wed, 02 Aug 2023 14:51:35 +0000

Inside of a black hole, the two theoretical pillars of 20th-century physics appear to clash. Now a group of young physicists think they have resolved the conflict by appealing to the central pillar of the new century — the physics of quantum information.

The post Quantum Complexity Shows How to Escape Hawking’s Black Hole Paradox first appeared on Quanta Magazine

In New Paradox, Black Holes Appear to Evade Heat Death

George Musser — Tue, 06 Jun 2023 13:56:42 +0000

Heat death held a morbid fascination for Victorian-era physicists. It was an early example of how everyday physics connects to the grandest themes in cosmology. Drop ice cubes into a glass of water, and you create a situation that is out of equilibrium. The ice melts, the liquid chills, and the system reaches a common temperature. Although motion does not cease — water molecules continue to...

Source

Black Holes Will Eventually Destroy All Quantum States, Researchers Argue

Thomas Lewton — Tue, 07 Mar 2023 15:00:25 +0000

At Princeton University in the early 1970s, the celebrated theoretical physicist John Wheeler could be spotted in seminars or impromptu hallway discussions drawing a big “U.” The letter’s left tip represented the beginning of the universe, where everything was uncertain and all quantum possibilities were happening at the same time. The letter’s right tip, sometimes adorned with an eye...

Source

Physicists Create a Holographic Wormhole Using a Quantum Computer

Natalie Wolchover — Wed, 30 Nov 2022 16:00:34 +0000

Editor’s note: In February 2023, a team of physicists led by Norman Yao of Harvard University published a comment about the holographic wormhole experiment described in this article. After analyzing the mathematical properties of the model used to simulate the wormhole in a quantum computer, the group concluded that the teleportation demonstration should not be thought of as a holographic wormhole.

Source

Gravitational Waves Should Permanently Distort Space-Time

Katie McCormick — Wed, 08 Dec 2021 15:18:40 +0000

The “gravitational memory effect” predicts that a passing gravitational wave should forever alter the structure of space-time. Physicists have linked the phenomenon to fundamental cosmic symmetries and a potential solution to the black hole information paradox.

The post Gravitational Waves Should Permanently Distort Space-Time first appeared on Quanta Magazine