|
- 积分
- 17983
- 威望
- 17983
- 包包
- 26159
|
2014年2月27日 Nature
) `& ~, E( x. {% u$ @+ P1 A
: Z4 s6 e" |! [# }) A( D8 @6 ?* wExcitons, plasmons and phonons are some of the better known quasiparticles — exotic entities that act in some respects like ordinary particles. New types do not come along all that often but here is one — a fundamentally new many-body particle named the ‘dropleton‘. Mackillo Kira and colleagues have identified this new quantum entity, a quantum droplet created when four or more electrons and holes (electronic vacancies) form a tiny correlation bubble via the Coulomb attraction, in direct-gap semiconductors such as gallium arsenide. The cover illustrates the pair-correlation function g(r) of quantum droplets — the central peak of the correlation function shows that electrons and holes are likely to be co-located and the ripples show that otherwise they form regularly spaced shells. (Cover art: Brad Baxley.)
6 M, g* }( \/ z6 y8 F4 f* _( d2 n% B
|
-
总评分: 威望 + 20
包包 + 20
查看全部评分
|
发表于 2014-3-3 11:31
