4 papers
Comment on 'Distorted perovskite with configuration as a frustrated spin system'
T. A. Kaplan, S. D. Mahanti
Interesting magnetic structure found experimentally in a series of manganites RMnO, where R is a rare earth, was explained, ostensibly, by Kimura et al, in terms of a classical…
Simple microscopic model of the magneto-electric effect in non-collinear magnets
T. A. Kaplan, S. D. Mahanti
A 2-site 2-electron model with s- and p-states on each site, having constrained average site-spins S_a, S_b, with angle theta between them, simpler than the previous closely-relate…
On Fermion Entanglement
T. A. Kaplan
Under the historical definition of entanglement, namely that encountered in Einstein--Podolski--Rosen (EPR)--type experiments, it is shown that a particular Slater determinant is e…
Spin swap vs. double occupancy in quantum gates
T. A. Kaplan, C. Piermarocchi
We propose an approach to realize quantum gates with electron spins localized in a semiconductor that uses double occupancy to advantage. With a fast (non-adiabatic) time control o…