Physicists observe a new form of magnetism for the first time

Physicists have pulled off a cosmic simulation that cracks open one of the universe’s most mind-bending mysteries: are we living in a fragile, temporary state of existence poised to collapse into a more stable reality?

Using a powerful quantum machine, they watched bubbles representing universal transformation flicker into life, offering a front-row seat to a process that could one day rewrite the structure of reality. The research doesn’t just unlock cosmic secrets it hints at a revolution in quantum computing and may redefine how we understand time, space, and technology.

Unveiling a Cosmic Time Bomb

Physicists have carried out a major new simulation that offers fresh insight into a mysterious process that could one day determine the ultimate fate of the universe.

About 50 years ago, theoretical physicists proposed that our universe might be stuck in a “false vacuum” a state that appears stable but could actually be temporary. According to this idea, the universe could, at any time, transition to a more stable “true vacuum” state. If that happened, the very fabric of reality could change instantly and dramatically, altering the fundamental forces and particles that make up everything. Scientists believe this kind of transition is extremely unlikely to happen any time soon, if it happens at all, but it could occur on time scales spanning millions or even billions of years.

Now, an international team from three research institutions has used a powerful quantum simulation to explore how this false vacuum decay might unfold. Their work provides new understanding of the quantum behaviors that govern both the early universe and the tiniest building blocks of matter. The project was led by Professor Zlatko Papic at the University of Leeds and Dr. Jaka Vodeb at Forschungszentrum Jülich in Germany.

A House of Cards: Understanding the Stakes

“We’re talking about a process by which the universe would completely change its structure,” said the paper’s lead author, Professor Papic, Professor of Theoretical Physics in the School of Physics and Astronomy at Leeds. “The fundamental constants could instantaneously change, and the world as we know it would collapse like a house of cards. What we really need are controlled experiments to observe this process and determine its time scales.”

The research represents a major leap in exploring quantum dynamics how systems evolve under the strange rules of quantum mechanics. The team’s simulation could also have practical implications for advancing quantum computing, which may one day help scientists tackle the most difficult puzzles about the nature of reality itself.

Simulating a Cosmic Puzzle

The research, by the University of Leeds, Forschungszentrum Jülich, and the Institute of Science and Technology Austria (ISTA), set out to understand the key puzzle of false vacuum decay – the underlying mechanism behind it. They used a 5564-qubit quantum annealer, a type of quantum machine designed by D-Wave Quantum Inc. to solve complex optimisation problems, which involve finding the best solution from a set of possible solutions, by harnessing the unique properties of quantum-mechanical systems.

In the paper, published recently in Nature Physics, the team explains how they used the machine to mimic the behavior of bubbles in a false vacuum. These bubbles are similar to liquid bubbles forming in water vapor, cooled below its dew point. It is understood that the formation, interaction, and spreading of these bubbles would be the trigger for false vacuum decay.

Co-author Dr. Jean-Yves Desaules, a postdoctoral fellow at ISTA, who completed his PhD at the University of Leeds, said: “This phenomenon is comparable to a rollercoaster that has several valleys along its trajectory but only one ‘true’ lowest state, at ground level.

“If that is indeed the case, quantum mechanics would allow the Universe to eventually tunnel to the lowest energy state or the ‘true’ vacuum and that process would result in a cataclysmic global event.”

Quantum Bubbles Reveal a Hidden Dance

The quantum annealer enabled scientists to observe the intricate “dance” of the bubbles, which involves how they form, grow, and interact in real time. These observations revealed that the dynamics are not isolated events  they involve complex interactions, including how smaller bubbles can influence larger ones. The team say their findings provide new insights into how such transitions might have occurred shortly after the Big Bang.

The paper’s first author, Dr. Vodeb, a postdoctoral researcher at Jülich, said: “By leveraging the capabilities of a large quantum annealer, our team has opened the door to studying non-equilibrium quantum systems and phase transitions that are otherwise difficult to explore with traditional computing methods.”

New Era of Quantum Simulation

Physicists have long questioned whether the false vacuum decay process could happen and if so, how long it would take. However, they have made little progress in finding answers due to the unwieldy mathematical nature of quantum field theory.

Instead of trying to crack these complex problems, the team set out to answer simpler ones that can be studied using newly available devices and hardware. This is thought to be one of the first times scientists have been able to directly simulate and observe the dynamics of false vacuum decay at such a large scale.

The experiment involved placing 5564 qubits the elementary building blocks of quantum computing into specific configurations that represent the false vacuum. By carefully controlling the system, the researchers could trigger the transition from false to true vacuum, mirroring the bubbles’ formation as described by false vacuum decay theory. The study used a one-dimensional model, but it is thought that 3D versions will be possible on the same annealer. The D-Wave machine is integrated into JUNIQ, the Jülich UNified Infrastructure for Quantum computing at the Jülich Supercomputing Centre. JUNIQ provides science and industry access to state-of-the-art quantum computing devices.

Website: International Research Awards on High Energy Physics and Computational Science.

#HighEnergyPhysics#ParticlePhysics#QuantumPhysics#AstroparticlePhysics#ColliderPhysics#HiggsBoson#LHC#QuantumFieldTheory#NeutrinoPhysics#PhysicsResearch#ComputationalScience#DataScience#ScientificComputing#NumericalMethods#HighPerformanceComputing#MachineLearningInScience#BigData#AlgorithmDevelopment#SimulationScience#ParallelComputing

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