Quantum phases with differing computational power
文献类型：期刊论文
| 作者 | Cui, J ; Gu, ML ; Kwek, LC ; Santos, MF ; Fan, H ; Vedral, V |
| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2012 |
| 卷号 | 3 |
| 关键词 | XY-MODEL ENTANGLEMENT SYSTEMS STATES TRANSFORMATIONS MATRIX SPINS |
| ISSN号 | 2041-1723 |
| 通讯作者 | Cui, J (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | The observation that concepts from quantum information has generated many alternative indicators of quantum phase transitions hints that quantum phase transitions possess operational significance with respect to the processing of quantum information. Yet, studies on whether such transitions lead to quantum phases that differ in their capacity to process information remain limited. Here we show that there exist quantum phase transitions that cause a distinct qualitative change in our ability to simulate certain quantum systems under perturbation of an external field by local operations and classical communication. In particular, we show that in certain quantum phases of the XY model, adiabatic perturbations of the external magnetic field can be simulated by local spin operations, whereas the resulting effect within other phases results in coherent non-local interactions. We discuss the potential implications to adiabatic quantum computation, where a computational advantage exists only when adiabatic perturbation results in coherent multi-body interactions. |
| 收录类别 | SCI |
| 资助信息 | NSFC [11175248]; '973' program [2010CB922904]; National Research Foundation; Ministry of Education, Singapore |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/51721]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Cui, J,Gu, ML,Kwek, LC,et al. Quantum phases with differing computational power[J]. NATURE COMMUNICATIONS,2012,3. |
| APA | Cui, J,Gu, ML,Kwek, LC,Santos, MF,Fan, H,&Vedral, V.(2012).Quantum phases with differing computational power.NATURE COMMUNICATIONS,3. |
| MLA | Cui, J,et al."Quantum phases with differing computational power".NATURE COMMUNICATIONS 3(2012). |
入库方式： OAI收割
来源：物理研究所
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