2 papers
cond-mat.quant-gas2016
Observation of parity-time symmetry breaking transitions in a dissipative Floquet system of ultracold atoms
Jiaming Li, Andrew K. Harter, Ji Liu +3
Open physical systems with balanced loss and gain, described by non-Hermitian parity-time () reflection symmetric Hamiltonians, exhibit a transition which could engen…
cond-mat.quant-gas2015
Parametric cooling of a degenerate Fermi gas in an optical trap
Jiaming Li, Ji Liu, Wen Xu +2
We demonstrate a novel technique for cooling a degenerate Fermi gas in a crossed-beam optical dipole trap, where high-energy atoms can be selectively removed from the trap by modul…