Quantum Computation and Quantum Field Theory
We will discuss the path towards using quantum computers for quantum field theory calculations. In particular, two problems will be addressed: how to truncate the Hilbert space of bosonic fields and how to take the continuum limit without incurring in exponentially large costs. We will discuss the particular case of the non-linear sigma model, where those questions are fully understood, followed by gauge theories, where those questions remain fairly open.
Assembling and Probing Highly Entangled Quantum Matter with Superconducting Circuits
Superconducting circuits are a powerful platform for quantum computation and sensing. In this talk I will show how we can use techniques from those domains to create and interrogate strongly interacting matter from microwave photons. In particular we discuss how disorder can be leveraged to assemble compressible quantum fluids. Using correlation measurements we can can observe photon fermionization.
CANCELLED - Glasses: From Physical Hamiltonians to Neural Networks and Back
Abstract: This talk will review our recent work on classical and quantum glasses. I will start with a discussion of spin glasses from the perspective of chaos theory.
Hardware-efficient quantum error correction using concatenated bosonic qubits
To solve problems of practical importance, quantum computers will likely need to incorporate quantum error correction, where a logical qubit is redundantly encoded in many noisy physical qubits. The large physical-qubit overhead typically associated with error correction motivates the search for more hardware-efficient approaches. To this end, in this talk I will describe our recent superconducting circuit experiment realizing a logical qubit memory via the concatenation of encoded bosonic cat qubits with an outer repetition code.