Key Takeaways A Bose-Einstein Condensate (BEC) is a coherent quantum state in which many particles act collectively as one coherent object. The advance enables a new platform for studying quantum fluids in solid-state materials, with long-term implications for quantum information science, quantum simulations, coherent optoelectronics, and future exciton-based devices. Bose-Einstein Condensates (BECs) are often described as a “fifth state of matter”: a quantum state in which many particles lose their individual identities and behave as one collective object. (A quantum fluid is an exotic state of matter in which gasses of electrons or other particles behave collectively like a fluid.) It also has implications for future quantum simulations, coherent optoelectronics in next-generation telecommunications and computing, and exciton-based devices enabling faster, more efficient computing.