中国科学院理论物理研究所机构知识库
Advanced  
ITP OpenIR  > 理论物理所2012年知识产出  > 期刊论文
题名: Sensitive chemical compass assisted by quantum criticality
作者: Cai, CY ;  Ai, Q ;  Quan, HT ;  Sun, CP
刊名: PHYSICAL REVIEW A
出版日期: 2012
卷号: 85, 期号:2, 页码:22315
关键词: MAGNETORECEPTION ;  PHOTOSYNTHESIS ;  TEMPERATURE ;  COHERENCE ;  SYSTEMS ;  BIRDS ;  MODEL
学科分类: Physics
通讯作者: Cai, CY (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
部门归属: [Cai, C. Y.; Ai, Qing; Sun, C. P.] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China; [Quan, H. T.] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA; [Quan, H. T.] Univ Maryland, Inst Phys Sci & Technol, College Pk, MD 20742 USA
英文摘要: A radical-pair-based chemical reaction might be used by birds for navigation via the geomagnetic direction. The inherent physical mechanism is that the quantum coherent transition from a singlet state to triplet states of the radical pair could respond to a weak magnetic field and be sensitive to the direction of such a field; this then results in different photopigments to be sensed by the avian eyes. Here, we propose a quantum bionic setup, inspired by the avian compass, as an ultrasensitive probe of a weak magnetic field based on the quantum phase transition of the environments of the two electrons in the radical pair. We prove that the yield of the chemical products via recombination from the singlet state is determined by the Loschmidt echo of the environments with interacting nuclear spins. Thus quantum criticality of environments could enhance the sensitivity of detection of weak magnetic fields.
资助者: National Natural Science Foundation of China [10935010, 11074261]; National Science Foundation (U.S.A.) [DMR-0906601]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000300235300006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15160
Appears in Collections:理论物理所2012年知识产出_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Sensitive chemical compass assisted by quantum criticality.pdf(419KB)----开放获取View Download

Recommended Citation:
Cai, CY,Ai, Q,Quan, HT,et al. Sensitive chemical compass assisted by quantum criticality[J]. PHYSICAL REVIEW A,2012,85(2):22315.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Cai, CY]'s Articles
 [Ai, Q]'s Articles
 [Quan, HT]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Cai, CY]‘s Articles
 [Ai, Q]‘s Articles
 [Quan, HT]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
文件名: Sensitive chemical compass assisted by quantum criticality.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院理论物理研究所 - Feedback
Powered by CSpace