Magnetic Particle Imaging (MPI) is a new noninvasive biomedical imaging modality. 

The two different types of magnetic gradient geometries are field-free-point (FFP) and field-free-line (FFL). The FFL-based device could potentially produce better image quality than the FFP-based one at the same nanoparticle concentration. However, from a technical point of view, the creation of a required high-strength magnetic gradient with FFL, which is capable of encoding 3D volume, is challenging thus limiting the expected resolution of such devices. In my research, I explore a novel design of the MPI scanner with FFL that could overcome the major challenges of MPI translation to the clinic.

The novel implementation of the delta-kicked rotor for momentum coherences in the guided atom interferometer promises practical applications. In addition, many fundamental questions still need to be addressed both theoretically and experimentally. The conventional scheme, where the dynamics of the delta-kicked rotor are probed by the detection of atomic momentum distribution using the time-of-flight technique, was demonstrated previously by M. Raizen and other groups. This approach, however, suffers from the intrinsic low resolution therefore making it impossible to observe many essential features of the delta-kicked rotor in a single quantum system. The method also disregards a mutual phase between wave packets in the observed signal and therefore treats the system quasi-classically. In contrast, our previous experiments revealed the interferometric nature of quantum resonances by detecting coherences between different momentum states.