6 papers
Hybrid Quantum-Classical Neural Networks for Recognizing Quantum Phases
Colin Scarato, Johannes Knörzer, Markus K. Hoffmann +11
Identifying quantum phases of matter is key to understanding strongly correlated materials, but remains a challenging task for both conventional computers and current quantum proce…
Hybrid quantum-classical neural network for sample-efficient recognition of topological phases
Markus K. Hoffmann, Leon C. Sander, Colin Scarato +4
With increasing maturity of quantum computers, standard methods for characterizing global properties of their output quantum states via direct measurements and classical post-proce…
Random Projections for Multi-Copy Quantum Algorithms
Xiaoyu Liu, Jordi Tura, Johannes Knörzer
Estimating nonlinear properties of quantum states is a central task in quantum information science. Multivariate traces, , and nonlinear observables…
Non-Exponential Decay in Finite Photonic Waveguide Arrays
Florian H. Huber, Benedikt Braumandl, Johannes Knörzer +5
Open quantum-system dynamics can follow exponential decay, non-exponential relaxation, or oscillatory dynamics, depending on the system-environment coupling. We study a lattice wit…
Generalized Concentratable Entanglement via Parallelized Permutation Tests
Xiaoyu Liu, Johannes Knörzer, Zherui Jerry Wang +1
Multipartite entanglement is an essential resource for quantum information theory and technologies, but its quantification has been a persistent challenge. Recently, Concentratable…
Fermionization and collective excitations of 1D polariton lattices
Johannes Knörzer, RafaÅ OÅdziejewski, Puneet A. Murthy +1
We theoretically demonstrate that the hallmarks of correlation and fermionization in a one-dimensional exciton-polaritons gas can be observed with state-of-the-art technology. Our…