636 citations · 2k across the 47 of their papers we have counts for
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Effective mixing between clouds of different species of particles that are massless, or nearly massless
R. F. Sawyer
In collisions of intense beams, or clouds, coherent dynamics open the way for fast transformations of light highly relativistic species into one another. Possible applications are…
Polarization exchange in colliding photon beams in a medium of an atomic gas
R. F. Sawyer
Photon-photon interactions mediated by an atomic gas can effect efficient polarization exchanges between two beams, leaving the medium exactly in its initial state. In, e.g., hydro…
Evolution speed in some coupled-spin models
R. F. Sawyer
We investigate the time evolution of some models with N spins and pairwise couplings, for the case of large N, in order to compare evolution times with "speed limit" minima derived…
State permutations from manipulation of near level-crossings
Nicole F. Bell, R. F. Sawyer, Raymond R. Volkas +1
We discuss some systematic methods for implementing state manipulations in systems formally similar to chains of a few spins with nearest-neighbor interactions, arranged such that…
Generation of entangled states and error protection from adiabatic avoided level crossings
Nicole F. Bell, R. F. Sawyer, Raymond R. Volkas +1
We consider the environment-affected dynamics of self-interacting particles living in one-dimensional double wells. Two topics are dealt with. First, we consider the production…
Entanglement and quantal coherence: a study of two limiting cases of rapid system--bath interactions
Nicole F. Bell, R. F. Sawyer, Raymond R. Volkas
We consider the dynamics of a system coupled to a thermal bath, going beyond the standard two-level system through the addition of an energy excitation degree of freedom. Further e…