Autor: |
Priya Batra, V. R. Krithika, T. S. Mahesh |
Jazyk: |
angličtina |
Rok vydání: |
2020 |
Předmět: |
|
Zdroj: |
Physical Review Research, Vol 2, Iss 1, p 013314 (2020) |
Druh dokumentu: |
article |
ISSN: |
2643-1564 |
DOI: |
10.1103/PhysRevResearch.2.013314 |
Popis: |
Optimization of quantum controls to achieve a target process is centered around an objective function comparing the realized process with the target. We propose an objective function that incorporates not only the target operator but also a set of its orthogonal operators whose combined influence leads to an efficient exploration of the parameter space, faster convergence, and extraction of superior solutions. The push-pull optimization, as we call it, can be adopted in various quantum control scenarios. We describe adopting it for gradient based and variational-principle based approaches. Numerical analysis of quantum registers with up to seven qubits reveals significant benefits of the push-pull optimization. We describe applying the push-pull optimization to prepare a long-lived singlet order in a two-qubit system using NMR techniques. |
Databáze: |
Directory of Open Access Journals |
Externí odkaz: |
|