Toward a Theory of Strongly Paired Fermions

讲演择要：
It is known that a weak attractive interaction in cold fermionic systems leads to Cooper pairing and hence superconductivity/superfluidity, which can be realized in electronic systems, nuclear matter, and dense quark matter. The application of magnetic field tuned Feshbach resonance in ultracold Fermi gases of alkali-metal atoms, i.e., tuning the interatomic interaction strength, opens a new paradigm to study strongly interacting many-body phenomena. The crossover from Bardeen-Cooper-Schrieffer (BCS) superfluid to Bose-Einstein condensate (BEC) in Fermi gases has now been experimentally explored in great detail, leading to a number of new concepts such as unitary Fermi gas and universal equation of state that bring new insights to better understand other strongly interacting systems in nature, such as quark gluon plasma and neutron star matter. In this talk I will introduce a many-body theoretical description of strongly paired fermions and its application to quasi-two-dimensional strongly interacting Fermi gases.

讲演人简介：
何联毅，清华年夜学物理系长聘副传授，哔哩哔哩出名UP主。2004年获清华年夜学物理学学士，2009年获清华年夜学物理学博士，2010-2011德法律王法公法兰克福年夜学实践物理研究所博士后，2011-2013德法律王法公法兰克福高档研究院博士后，2013-2015美国洛斯阿拉莫斯国度试验室实践部研究助理，2016-2022清华年夜学物理系助理传授、准聘副传授，2022起任长聘副传授。曾获德国洪堡学者博士后奖学金(2010-2011)、Hermann Kue妹妹el多体物理晚期成绩奖(2015)、国度级青年人材规划(2016)。首要研究热密QCD物资以及强彼此作用冷原子体系的多体实践，迄今颁发研究论文约80篇。