The advent of quantum simulators and quantum processors has enabled probing non-equilibrium quantum matter, simultaneously raising fundamental questions about entanglement, complexity and control of many-body states. Theoretical studies revealed new regimes of non-thermalising quantum dynamics (including prethermalization and many-body localization), associated with the emergence of exact or...
We introduce the theory and experimental realization of hyperbolic matter, a novel state of matter in curved space that contradicts our Euclidean geometric intuition. It is made of particles moving in the infinite two-dimensional hyperbolic plane. Curvature of space is emulated through a hyperbolic lattice using topolectric circuit networks relying on a newly developed complex-phase circuit...
The nonlinear response of quantum materials contains a wealth of information that is often hidden in the linear regime. Examples include second-harmonic generation as a sensitive probe of electronic symmetry, and higher-order conductivities that provide insights into the quantum geometry of Bloch states and their Berry curvature distribution. Two-dimensional coherent THz and Raman spectroscopy...
Quantum annealing is a powerful alternative model for quantum computing, which can succeed in the presence of environmental noise even without error correction. The optimal adiabatic protocol is exponentially fragile to control errors. After reviewing a recently developed method for ameliorating this fragility we demonstrate its application to a specific problem chain freezing in minor embedding.
