‘Wormhole’ built on quantum computer teleports information as predicted: ScienceAlert
For the first time, scientists created a quantum computing an experiment to study the dynamics of wormholes—that is, shortcuts through space-time that could bypass the space-velocity limitations of relativity.
Wormholes have traditionally been part of science fiction, ranging from Jodie Foster’s Wild Ride Contact to the time-flipping plot Interstellar. But the researchers behind the experiment, is reported in the December 1 issue of the magazine Naturethey hope their work will help physicists study the phenomenon for real.
“We discovered a quantum system that exhibits key properties of a gravitational wormhole, but is small enough to be implemented on today’s quantum hardware,” Maria Spiropoulou, a physicist at Caltech said in a news release. Spiropoulos, Nature senior author of the paper, is the principal investigator of a federally funded research program known as Quantum Communication Channels for Fundamental Physics.
Don’t pack your bags for Alpha Centauri just yet: This wormhole simulation is nothing more than a simulation analogous to computer generated black hole or supernova.
And physicists still see no conditions under which a traversable wormhole can actually be created. Someone has to create negative energy first.
Columbia University theoretical physicist Peter Voight cautioned against making too much of the research.
“The claim that ‘Physicists are creating a wormhole’ is just complete nonsense, and the massive campaign to mislead the public about it is a disgrace, utterly unhelpful to the credibility of physics research in particular and science in general.” he wrote on his blogwhich is called Not Even Wrong.
These two theories have done an excellent job of explaining how gravity works and thus how the subatomic world is structured, but they do not match well with each other.
One of the big questions centers on whether wormhole teleportation can follow the principles behind quantum entanglement.
This quantum phenomenon is better understood and even demonstrated in the real world thanks to Nobel research: Involves connecting subatomic particles or other quantum systems in a way that allows what Albert Einstein called “spooky action from a distance.”
Spiropoulou and her colleagues, including lead authors Daniel Jafferis and Alexander Zlokapa, created a computer model that applied the physics of quantum entanglement to wormhole dynamics.
Their program is based on a theoretical framework known as Sachdev-Ye-Kitaev modelor SYK.
The big challenge was that the program had to run on a as much as a computer. on Google Sycamore quantum processing chip was powerful enough to take on the task with help from the conventional machine learning tools.
“We hired [machine] learning techniques to find and prepare a simple SYK-like quantum system that can be encoded in current quantum architectures and that will preserve gravitational properties,” Spiropoulou said.
“In other words, we simplified the microscopic description of the SYK quantum system and studied the resulting effective model that we found on the quantum processor.”
The researchers inserted a quantum bit, or qubit, of encoded information into one of two entangled systems—and then watched the information emerge from the other system. From their perspective, it’s as if the qubit has passed between them black holes through a wormhole.
“It took a long time to get to the results and we were surprised with the result,” said Caltech researcher Samantha Davis, one of the study’s co-authors.
The team found that the wormhole simulation allowed information to flow from one system to another when the computerized equivalent of negative energy was applied, but not when positive energy was applied instead. This matches what theorists would expect from a wormhole in the real world.
As quantum circuits become more and more complex, researchers aim to conduct higher-accuracy simulations of wormhole behavior – which could lead to new twists in fundamental theories.
“The relationship between quantum entanglement, spacetime, and quantum gravity is one of the most important questions in fundamental physics and an active area of theoretical research,” Spiropoulou said.
“We are excited to take this small step toward testing these ideas on quantum hardware, and we will continue.”
In addition to Jafferis, Zlokapa, Spiropoulou, and Davis, the authors of Nature essay titled “Transmittable Wormhole Dynamics of a Quantum Processor”, include Joseph Liken, David Kolchmeier, Nicolai Lauck, and Hartmut Neven.