| dc.contributor | 應物所 | en_US |
| dc.creator (作者) | 林瑜琤 | zh_TW |
| dc.creator (作者) | Lin, Yu-Cheng | en_US |
| dc.date (日期) | 2007.01 | en_US |
| dc.date.accessioned | 1-May-2014 17:50:55 (UTC+8) | - |
| dc.date.available | 1-May-2014 17:50:55 (UTC+8) | - |
| dc.date.issued (上傳時間) | 1-May-2014 17:50:55 (UTC+8) | - |
| dc.identifier.uri (URI) | http://nccur.lib.nccu.edu.tw/handle/140.119/65808 | - |
| dc.description.abstract (摘要) | The discrete time path integral Monte Carlo (PIMC) with a one-particle density matrix approximationis applied to study the quantum phase transition in the coupled double-well chain. Toimprove the convergence properties, the exact action for a single particle in a double well potentialis used to construct the many-particle action. The algorithm is applied to the interacting quantumdouble-well chain for which the zero-temperature phase diagram is determined. The quantum phasetransition is studied via finite-size scaling and the critical exponents are shown to be compatiblewith the classical two-dimensional (2D) Ising universality class – not only in the order-disorderlimit (deep potential wells) but also in the displacive regime (shallow potential wells). | en_US |
| dc.format.extent | 221196 bytes | - |
| dc.format.mimetype | application/pdf | - |
| dc.language.iso | en_US | - |
| dc.relation (關聯) | Physical Review E, 75(1), 016702(1-6) | en_US |
| dc.title (題名) | Path integral Monte Carlo study of the interacting quantum double-well model: Quantum phase transition and phase diagram | en_US |
| dc.type (資料類型) | article | en |
