C. Sabín

Non-Abelian Lattice Gauge Theories in Superconducting Circuits

  1. A. Mezzacapo,
  2. E. Rico,
  3. C. Sabín,
  4. I. L. Egusquiza,
  5. L. Lamata,
  6. and E. Solano
We propose a digital quantum simulator of non-Abelian pure-gauge models with a superconducting circuit setup. Within the framework of quantum link models, we build a minimal instance
of a pure SU(2) gauge theory, using triangular plaquettes involving geometric frustration. This realization is the least demanding, in terms of quantum simulation resources, of a non-Abelian gauge dynamics. We present two superconducting architectures that can host the quantum simulation, estimating the requirements needed to run possible experiments. The proposal establishes a path to the experimental simulation of non-Abelian physics with solid-state quantum platforms.
arxiv pdf

Relativistic Motion with Superconducting Qubits

  1. S. Felicetti,
  2. C. Sabín,
  3. I. Fuentes,
  4. L. Lamata,
  5. G. Romero,
  6. and E. Solano
We show how the dynamical modulation of the qubit-field coupling strength in a circuit quantum electrodynamics architecture mimics the motion of the qubit at relativistic speeds. This
allows us to propose a realistic experiment to detect microwave photons coming from simulated acceleration radiation. Moreover, by combining this technique with the dynamical Casimir physics, we enhance the toolbox for studying relativistic phenomena in quantum field theory with superconducting circuits.
arxiv pdf