Iman Marvian, Duke

Title: Locality, Symmetry, and Coherence Through the Lens of Quantum Information  

The primary goal of quantum information science is to harness the power of quantum systems for computing and information processing tasks. Interestingly, it turns out that the quantum information point of view also provides new insights and raises new questions about the fundamental concepts of locality, symmetry, and coherence. In the first part of my talk, I will discuss an ongoing project focused on understanding the implications of symmetries and locality of interactions within the framework of quantum circuits. For example, I will explain how a recent surprising no-go theorem in this context has led us to devise new types of experiments to probe the locality of interactions. I will also discuss novel methods for synthesizing energy-conserving quantum circuits with XY interaction and explore their applications for suppressing noise in quantum computers. In the second part of my talk, I will briefly discuss another ongoing project concerning the role of coherence in quantum thermodynamics.