At the Center for Quantum Technology and Applications, we develop quantum and quantum-inspired algorithms that address challenges ranging from fundamental physics to practical applications. Our research ranges from simulating particle interactions and quantum field theories to exploring general quantum simulation methods for material science and quantum chemistry. Beyond fundamental physics, we address real-world optimization and machine learning problems with quantum computers. As an IBM Quantum Innovation Center, we don't just theorize, we test our algorithms on cutting-edge quantum hardware, turning ideas into implementations. We're also advancing the field itself by developing techniques that generally improve quantum algorithms, from error mitigation to circuit optimization. Our team brings together theoretical physicists, mathematicians, and computer scientists, creating a collaborative and highly productive environment.

Are the fundamental constants of nature truly constant? Our TIQTOC (Trapped Ion Quantum Tests of Fundamental Constants) experiment uses ultraprecise quantum clocks to find out. By trapping ions like Californium 17⁺ and measuring their frequencies with extraordinary accuracy, we can probe the stability of fundamental constants such as the fine structure constant, which governs electromagnetic interactions. Our approach compares clocks with different sensitivities to these constants. Any drift could reveal new physics, potentially signaling interactions with ultralight dark matter. To achieve this, we're involved in developing a robust, noise-free fiber network capable of connecting quantum clocks with unprecedented precision. This infrastructure not only enables our fundamental physics tests but also lays the groundwork for quantum information networks, where secure quantum communication will rely on exactly this kind of technology.