Abstract
Quantum annealing by ferromagnetic interaction is investigated for random-field Ising ferromagnets and Ising spin-glasses, using the Bethe-type mean-field annealing scheme. The fact that there are rooms of choice of the type of quantum fluctuations is a prominent feature in quantum annealing which does not exist in classical simulated annealing. Results of mean-field annealing show that quantum annealing by ferromagnetic interaction lowers the energy of the obtained approximate ground state below that by conventional quantum annealing using only transverse field.
| Original language | English |
|---|---|
| Pages (from-to) | 367-370 |
| Number of pages | 4 |
| Journal | Physica E: Low-Dimensional Systems and Nanostructures |
| Volume | 40 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2007 Dec |
| Externally published | Yes |
Keywords
- Ising spin-glass
- Quantum annealing
- Random-field Ising model
- Transverse ferromagnetic interaction
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics