Textdokument
A quantum algorithm for solving open system dynamics on quantum computers using noise
Lade...
Volltext URI
Dokumententyp
Dateien
Zusatzinformation
Datum
2025
Zeitschriftentitel
ISSN der Zeitschrift
Bandtitel
Verlag
Gesellschaft für Informatik, Bonn
Zusammenfassung
We discuss the importance of non-unitary gates in quantum software engineering by reporting on the results of ‘A quantum algorithm for solving open system dynamics on quantum computers using noise’ published in Physical Review A in December 2023. Non-unitary operations can enable quantum algorithms not possible with purely unitary quantum circuits and are receiving growing interest in the community. One example is the recent proof of quantum advantage for finding local minima under thermal perturbations. Our published work proposes an important building block for non-unitary approaches: An algorithm to approximate complicated non-unitary baths with dedicated bath qubits on a digital quantum computer. We use the results to especially discuss the requirements for quantum software toolkits to support non-unitary algorithms.