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We recently unraveled a major inconsistency in the traditional description of radical-pair quantum dynamics by studying single-molecule quantum trajectories and comparing their prediction with Haberkorn's master equation. A comment by Jeschke claimed that the inconsistency arises because we did not properly include quantum state projections in the traditional approach. We here show that Jeschke stipulates quantum trajectories involving unphysical quantum states with negative populations. Moreover, the author's Monte Carlo simulation and its agreement with Haberkorn's master equation is a demonstration of an algebraic tautology, establishing the consistency of an unphysical master equation with circularly defined unphysical trajectories.

The properties of a neutral atom trap are nearly ideal for precise measurements of nuclear β -decay correlation coefficients. Following a radioactive decay, all particles emerge from the trap volume unperturbed and are available for study. However, for measurements online at existing accelerators, sufficient statistics will be difficult to acquire if precision significantly better than 0.01 in the correlation coefficients is desired. We have investigated the feasibility of detecting shake-off electrons in coincidence with the recoiling ions to decrease the statistical uncertainty of some measurements by nearly an order of magnitude.

RETrap is a cryogenic Penning ion trap system, capable of the capture and cooling of highest charge high Z ions from external low-energy ion sources such as the Electron Beam Ion Trap (EBIT) or Electron Cyclotron Resonance Ion Sources (ECRIS). Recently RETrap has been moved from Lawrence Livermore National Laboratory (LLNL) to Lawrence Berkeley National Laboratory (LBNL), where its operation for sophisticated research is currently being re-established.