  Charged particle tracking has played a key role in the development of
particle physics, particularly for understanding phenomena involving
short-lived particles precisely. As a platform for high-resolution charged
particle tracking, an array of Rydberg atoms is theoretically analyzed.
Utilizing the Ramsey sequence to accumulate the phase shift between the ground
and a Rydberg excited state induced by the time-dependent Stark shift due to a
moving charge, a nonrelativistic charged particle can be tracked with a
precision of $\sim10$ nm, with a potential of higher resolution by optimizing
reconstruction algorithm. Although a lot of technical difficulties need to be
resolved, the proposed scheme can potentially serve as a charge tracker for
relativistic charged particles as well. Also, this analysis can explain
potential decoherence in the quantum computation with Rydberg atoms induced by
residual ions and cosmic rays.
