| 查看: 842 | 回复: 10 | |||
| 当前主题已经存档。 | |||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | |||
maxman木虫 (正式写手)
|
[交流]
Phase Transitions and Renormalisation Group
|
||
|
Phase Transitions and Renormalisation Group (Oxford Graduate Texts) By Jean Zinn-Justin -------------------------------------------------------------------------------- Publisher: Oxford University Press, USA Number Of Pages: 464 Publication Date: 2007-08-30 ISBN-10 / ASIN: 0199227195 ISBN-13 / EAN: 9780199227198 Binding: Hardcover -------------------------------------------------------------------------------- Book Description: This work tries to provide an elementary introduction to the notions of continuum limit and universality in statistical systems with a large number of degrees of freedom. The existence of a continuum limit requires the appearance of correlations at large distance, a situation that is encountered in second order phase transitions, near the critical temperature. In this context, we will emphasize the role of gaussian distributions and their relations with the mean field approximation and Landau's theory of critical phenomena. We will show that quasi-gaussian or mean-field approximations cannot describe correctly phase transitions in three space dimensions. We will assign this difficulty to the coupling of very different physical length scales, even though the systems we will consider have only local, that is, short range interactions. To analyze the unusual situation, a new concept is required: the renormalization group, whose fixed points allow understanding the universality of physical properties at large distance, beyond mean-field theory. In the continuum limit, critical phenomena can be described by quantum field theories. In this framework, the renormalization group is directly related to the renormalization process, that is, the necessity to cancel the infinities that arise in straightforward formulations of the theory. We thus discuss the renormalization group in the context of various relevant field theories. This leads to proofs of universality and to efficient tools for calculating universal quantities in a perturbative framework. Finally, we construct a general functional renormalization group, which can be used when perturbative methods are inadequate. http://rapidshare.com/files/1020 ... roup_0199227195.rar |
回复此楼» 猜你喜欢
号外号外
已经有4人回复
-
能否退出参与的面上项目解除限项
已经有22人回复
-
人气不行了
已经有9人回复
-
没有任何消息-是不是就凉了
已经有6人回复
-
如果此刻你正在为国基感到焦虑，不妨来听听这首《基金之外》
已经有5人回复
-
2026国自然函评费到账
已经有19人回复
-
建议基金发布提前给出明确的时间点
已经有16人回复
-
今日不放榜？网传国自然预计 8 月 27 日可查结果
已经有21人回复
-
估计是周四
已经有4人回复
-
我面上完蛋了
已经有9人回复
6楼2008-03-27 20:13:03
shiquan_lv
铜虫 (初入文坛)
- 应助: 1 (幼儿园)
- 金币: 178.9
- 帖子: 45
- 在线: 180.3小时
- 虫号: 514876
- 注册: 2008-02-29
- 性别: GG
- 专业: 能源化工
2楼2008-03-26 08:35:22
maxman
木虫 (正式写手)
- 应助: 3 (幼儿园)
- 金币: 9259.1
- 散金: 5
- 帖子: 572
- 在线: 279.4小时
- 虫号: 117307
- 注册: 2005-11-26
- 专业: 凝聚态物性 II ：电子结构
3楼2008-03-26 14:19:29
zhongyanggao
铜虫 (小有名气)
- 应助: 0 (幼儿园)
- 金币: 220
- 帖子: 284
- 在线: 38.5小时
- 虫号: 351975
- 注册: 2007-04-22
- 性别: GG
- 专业: 基础物理学
5楼2008-03-27 15:13:35
