CONFIGURING MAGNETIC CHAINS VIA QUANTUM ALGORITHMS


Bozpolat S. A.

International Conference on Technology, Engineering and Science 2023 (IConTES) , Antalya, Türkiye, 16 - 19 Kasım 2023, ss.77, (Özet Bildiri)

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: Antalya
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.77
  • Marmara Üniversitesi Adresli: Evet

Özet

Another application of a configuration optimization problem is to calculate the

expected spin configurations of magnetic materials in different shapes and under

different conditions. Quantum Approximate Optimization. Algorithm is a promising

candidate to investigate such material engineering problems using a quantum

computing device. In this work we have considered Ferromagnetic and

Antiferromagnetic materials fabricated as chain with varying sizes. Using Quantum

Approximate Optimization Algorithm we have minimized the hamiltonian of

considered magnetic material and have calculated the most-probable spin alignments.

We have also examined the external magnetic field effect on the spin orientations of

magnetic moments in these materials using aforesaid quantum algorithm. As for the

optimizer of Quantum Approximate Optimization. Algorithm, we have employed a

Quantum Feed Forward Neural Network. We have also investigated the impact of

different hyperparameters of the Quantum Feed Forward Neural Network such as

epoch number or batch size. We observed that Quantum Approximate Optimization

Algorithm is, indeed, a succeeding quantum algorithm to utilize quantum devices to

explore the nature of different magnetic materials with varying sizes

and shapes under different conditions. Moreover, we have seen that Quantum Feed

Forward Neural Network is a legitimate optimizator candidate for Quantum

Approximate Optimization Algorithm for future applications.

Keywords: magnetic materials, quantum approximate optimization