Quantum Information in Many-Body Systems

Understanding the fundamental laws that govern complex quantum systems is one of the central challenges of modern physics, with far-reaching implications for both our picture of nature and the development of quantum technologies. At the intersection of quantum many-body physics and quantum information theory, a set of deep and interrelated questions has emerged: How does chaos arise in quantum systems? What characterizes holographic phases that admit a gravitational description? How do dissipation and measurement reshape thermalization and quantum phases? And what is the true cost of quantum computation beyond entanglement?

Our group addresses these questions through a combination of analytical and numerical approaches at the interface of many-body theory, quantum information and computing, and high-energy physics. We investigate quantum chaos and holographic quantum matter, using the paradigmatic Sachdev–Ye–Kitaev model, and its extensions, to bridge between many-body dynamics and gravity. We study non-Hermitian and open quantum systems to understand how dissipation and measurement modify thermalization, chaos, and phase structure. In parallel, we explore quantum complexity, such as non-stabilizerness, as both a diagnostic of chaotic dynamics and a resource governing computational power across many-body regimes.