Speaker: Akhil Francis (North Carolina State University)

Title: Quantum computation for condensed matter systems

Abstract: Quantum computers offer the potential to simulate quantum systems that classical machines cannot handle. But present-day quantum machines termed noisy intermediate-scale quantum (NISQ) machines can handle only small system sizes and exhibit significant noise. In this talk, I present our work in using quantum computing to study condensed matter systems, especially using NISQ machines. This includes obtaining two-point correlation functions, measuring partition function via its zeros, implementing adiabatic state preparation, and developing a new quantum subspace diagonalization. I will give an overview of these projects and discuss two in detail -- many body thermodynamics using partition function zeros and subspace diagonalization using eigenvector continuation.