What is it about?
Superconductivity arises when particles pair up and behave collectively, but some forms of pairing are much more unusual than the conventional picture. In this work, we investigate a special type of superconducting state where pairs of particles form with a finite momentum, creating a repeating pattern in space. By combining quantum simulations with experiments on ultra-cold atoms, we identify the parameter regimes where this exotic pairing may occur and show that its early signatures could be accessible with current experimental techniques. Our study demonstrates how the close connection between computation and experiment can help uncover new quantum phases of matter.
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Why is it important?
The discovery and understanding of new forms of superconducting pairing remain central challenges in quantum science. Our work develops a powerful framework to search for exotic pairing states with non-zero momentum, in strongly interacting quantum systems. By combining large-scale many-body computations with experimentally accessible measurements, we bridge the gap between theory and quantum simulation, enabling the exploration of previously hidden quantum phases.
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This page is a summary of: In search of exotic pairing in the Hubbard model: Many-body computation and quantum gas microscopy, Proceedings of the National Academy of Sciences, June 2026, Proceedings of the National Academy of Sciences,
DOI: 10.1073/pnas.2600303123.
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