The Gbar project, or how does antimatter fall?
The Gbar project, or how does antimatter fall?
复制标题
Gbar项目,或者说反物质是如何坠落的?
DOI:
10.1007/s10751-014-1019-6
复制
发表时间:
2014
影响因子:
--
通讯作者:
Indelicato P
中科院分区:
文献类型:
--
作者:
Indelicato P
The Einstein classical Weak Equivalence Principle states that the trajectory of a particle is independent of its composition and internal structure when it is only submitted to gravitational forces. This fundamental principle has never been directly tested with antimatter. However, theoretical models such as supergravity may contain components inducing repulsive gravity, thus violating this principle. The GBAR project (Gravitational Behaviour of Antihydrogen at Rest) proposes to measure the free fall acceleration of ultracold neutral antihydrogen atoms in the terrestrial gravitational field. The experiment consists in preparing antihydrogen ions (one antiproton and two positrons) and sympathetically cool them with Be+ions to a few 10μK. The ultracold ions will then be photoionized just above threshold, and the free-fall time over a known distance measured. In this work, the GBAR project is described as well as possible improvements that use quantum reflection of antihydrogen on surfaces to use quantum methods of measurements.
登录
查看更多内容
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
M. Bussmann;U. Schramm;D. Habs;V. Kolhinen;J. Szerypo
通讯作者:
J. Szerypo
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
A. Voronin;V. Nesvizhevsky;S. Reynaud
通讯作者:
S. Reynaud
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
G. Drobychev;U. Gendotti;I. Boscolo;H. Walters;M. Büchner;A. Rubbia;M. Oberthaler;P. Nédélec;S. Zavatarelli;C. Carraro;A. Belov;G. Ferrari;G. Giammarchi;A. Gervasini;L. Formaro;G. Testera;A. Vairo;V. Byakov;S. Hogan;G. Gribakin;M. D. Combarieu;U. Warring;A. Dupasquier;G. Bonomi;G. Consolati;P. Crivelli;Lagomarsino;G. Tino;S. Stepanov;F. Merkt;F. Castelli;S. Mariazzi;L. Cabaret;A. Kellerbauer;D. Sillou;N. Djourelov;R. Brusa;G. Manuzio;M. Jacquey;D. S. Zvezhinskij;P. Pari;H. Stroke;A. Badertscher;D. Comparat;M. Amoretti;J. Meier;S. Cialdi;M. Prevedelli;V. Matveev;C. Canali;S. Gninenko;G. Trénec;A. Rotondi;J. Vigué;M. Doser;P. Forget;F. Quasso
通讯作者:
F. Quasso
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
J. Eble;S. Ulm;P. Zahariev;F. Schmidt;K. Singer
通讯作者:
K. Singer
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
M. Villata
通讯作者:
M. Villata