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| Hauptseite > Publikationsdatenbank > The Fate of the False Vacuum: Creating Quantized Bubbles on a 5564 Qubit Quantum Annealer |
| Hauptseite > Publikationsdatenbank > The Fate of the False Vacuum: Creating Quantized Bubbles on a 5564 Qubit Quantum Annealer |
| Poster (After Call) | FZJ-2024-05229 |
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2024
Abstract: For nearly half a century, first-order quantum phase transitions (FOQPT) have been studiedintensely in various contexts. False vacuum decay is a potential mechanism for the Universe's evolutionpost-Big Bang, the Kibble-Zurek mechanism can be generalized to FOQPTs, quantum metastability hasimplications for reaction rate theory, and the mechanisms behind FOQPTs can help answer fundamentalquestions regarding non-equilibrium quantum dynamics. Despite theoretical advancements, directobservation and study of these dynamics have remained elusive due to their non-perturbative nature.However, recent breakthroughs in quantum technology have enabled unprecedented experimentalinvestigation into this fundamental phenomenon. Here, we utilize a quantum annealer with 5564superconducting flux qubits subjected to transverse and longitudinal fields arranged in a ring to directlyobserve FOQPT dynamics, revealing quantized bubble formation. Moreover, we identify a parameterregime on the quantum annealer where we observe coherent scaling laws in driven many-body dynamicsof 5564 qubits for over 1 μs, which is more than 1000 qubit time units. This study opens avenues forinvestigating previously inaccessible time scales, system sizes, dimensionality, and topology ofmany-body dynamics, marking a significant milestone in the study of complex quantum systems andpaving the way for future breakthroughs in quantum simulation.
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