Quantum criticality of a one-dimensional Bose-Fermi mixture
文献类型：期刊论文
| 作者 | Yin, XG ; Guan, XW ; Zhang, YB ; Chen, S |
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2012 |
| 卷号 | 85期号:1 |
| 关键词 | TONKS-GIRARDEAU GAS INSULATOR TRANSITION MOTT INSULATOR BOSONS THERMODYNAMICS PHASE |
| ISSN号 | 1050-2947 |
| 通讯作者 | Yin, XG (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | We present two realistic entanglement concentration protocols (ECPs) for pure partially entangled photons. A partially entangled photon pair can be concentrated to a maximally entangled pair with only an ancillary single photon with a certain probability, while the conventional ECPs require two copies of partially entangled pairs at least. Our first protocol is implemented with linear optics and the second protocol is implemented with cross-Kerr-nonlinearities. Compared with other ECPs, they do not need to know the accurate coefficients of the initial state. With linear optics, it is feasible with current experiments. With cross-Kerr-nonlinearities, it does not require sophisticated single-photon detectors and can be repeated to get a higher success probability. Moreover, the second protocol can get the higher entanglement transformation efficiency and it may be the most economical protocol by far. Meanwhile, both protocols are more suitable for multiphoton system concentration because they need less operations and classical communications. All these advantages make the two protocols useful in current long-distance quantum communications. |
| 收录类别 | SCI |
| 资助信息 | MOST [2011CB921700]; NSF of China [10821403, 11174360, 10974234]; 973 Program [2011CB921601]; Australian Research Council; NCET |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/51660]  |
| 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 | Yin, XG,Guan, XW,Zhang, YB,et al. Quantum criticality of a one-dimensional Bose-Fermi mixture[J]. PHYSICAL REVIEW A,2012,85(1). |
| APA | Yin, XG,Guan, XW,Zhang, YB,&Chen, S.(2012).Quantum criticality of a one-dimensional Bose-Fermi mixture.PHYSICAL REVIEW A,85(1). |
| MLA | Yin, XG,et al."Quantum criticality of a one-dimensional Bose-Fermi mixture".PHYSICAL REVIEW A 85.1(2012). |
入库方式： OAI收割
来源：物理研究所
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