Clock-laser assisted quantum simulations with ultracold atoms

本提案的主要目标是开发和演示一种根本不同的寻址方法，而不受这些限制，即使用超窄时钟激光器的频率寻址。通过在频率空间而不是真实的空间中寻址，这种方法基本上与衍射极限无关。在超冷费米锶中，在698nm处存在线宽小于1Hz的超窄时钟线。这条线也构成了最精确的原子钟的基础（例如NPL，Ye group JILA，...）。我们的团队目前正在构建一个新的超冷锶实验，我们可以使用合适的高功率时钟激光器，即稳定到具有Hz级线宽的ULE腔的Ti：Sa激光器。

The main goal of this proposal is to develop and demonstrate a fundamentally different addressing approach without these limitations, namely frequency addressing using ultranarrow clock lasers. By addressing in frequency space instead of real space, this approach is fundamentally independent of the diffraction limit. In ultracold fermionic Strontium, there is an ultra-narrow clock line at 698nm with a linewidth of less than 1Hz. This line also forms the basis for the most accurate atomic clocks (e.g. NPL, Ye group JILA, ...). Our group is currently constructing a new ultracold Strontium experiment and we have access to a suitable high-power clock laser, i.e. a Ti:Sa laser stabilised to a ULE cavity with Hz-level linewidth.