9 papers
Fractal quantum many-body scars and Hamiltonian inverse design from ZX-calculus
Marcin Szyniszewski
Diagrammatic languages such as ZX-calculus provide compact and intuitive descriptions of quantum processes and have become established tools for circuit simplification, verificatio…
Controlled Zeno-Induced Localization of Free Fermions in a Quasiperiodic Chain
Pinaki Singha, Nilanjan Roy, Marcin Szyniszewski +1
We investigate measurement-induced localization in a continuously monitored one-dimensional Aubry--André--Harper model, focusing on the quantum Zeno regime in which the measuremen…
Symmetric tensor scars with tunable entanglement from volume to area law
Bhaskar Mukherjee, Christopher J. Turner, Marcin Szyniszewski +1
Teleportation of quantum information over long distances requires robust entanglement on the macroscopic scale. The construction of highly energetic eigenstates with tunable long-r…
Automated quantum circuit optimization with randomized replacements
Marcin Szyniszewski, Aleks Kissinger, Noah Linden +1
Quantum circuit optimization - the process of transforming a quantum circuit into an equivalent one with reduced time and space requirements - is crucial for maximizing the utility…
Measurement-induced Lévy flights of quantum information
Igor Poboiko, Marcin Szyniszewski, Christopher J. Turner +3
We explore a model of free fermions in one dimension, subject to frustrated (non-commuting) local measurements across adjacent sites, which resolves the fermions into non-orthogona…
Dynamic syndrome decoder in volume-law phases of hybrid quantum circuits
Dawid Paszko, Marcin Szyniszewski, Arijeet Pal
Phases of matter with volume-law entanglement are frequently observed in quantum circuits and have numerous applications, ranging from deepening our understanding of quantum mechan…