TY - JOUR
T1 - Quantum annealing of pure and random Ising chains coupled to a bosonic environment
AU - Suzuki, Sei
AU - Oshiyama, Hiroki
AU - Shibata, Naokazu
N1 - Funding Information:
Acknowledgment One of the authors (S.S.) acknowledges fruitful discussions with L. Arceci, S. Barbarino, and G. E. Santoro. The present work was partly supported by JSPS KAKENHI, Japan through Grant No. 26400402.
Publisher Copyright:
hysical ©2019 Society The Author(s) of Japan
PY - 2019
Y1 - 2019
N2 - We study quantum annealing of pure and random transverse Ising chains that are coupled to boson baths, using a novel numerical method based on the combination of the quasi-adiabatic propagation path integral (QUAPI) and matrix product state (MPS) formalisms. We present numerical results on systems with up to 64 spins and conclude that the baths disturb quantum annealing of pure and random Ising chains. The numerical method of computing the reduced density matrix is described in detail.
AB - We study quantum annealing of pure and random transverse Ising chains that are coupled to boson baths, using a novel numerical method based on the combination of the quasi-adiabatic propagation path integral (QUAPI) and matrix product state (MPS) formalisms. We present numerical results on systems with up to 64 spins and conclude that the baths disturb quantum annealing of pure and random Ising chains. The numerical method of computing the reduced density matrix is described in detail.
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U2 - 10.7566/JPSJ.88.061003
DO - 10.7566/JPSJ.88.061003
M3 - Review article
AN - SCOPUS:85067295297
SN - 0031-9015
VL - 88
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
IS - 6
M1 - 061003
ER -