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Quantum phase transitions in photonic cavities with two-level systems
M. I. Makin, Jared H. Cole, Charles Tahan +2
Systems of coupled photonic cavities have been predicted to exhibit quantum phase transitions by analogy with the Hubbard model. To this end, we have studied topologies of few (up…
Matterwave Transport Without Transit
M. Rab, J. H. Cole, N. G. Parker +3
Classically it is impossible to have transport without transit, i.e., if the points one, two and three lie sequentially along a path then an object moving from one to three must, a…
Quantum phase transitions of light
Andrew D. Greentree, Charles Tahan, Jared H. Cole +1
Recently, condensed matter and atomic experiments have reached a length-scale and temperature regime where new quantum collective phenomena emerge. Finding such physics in systems…
A theoretical investigation into the microwave spectroscopy of a phosphorus-donor charge-qubit in silicon: Coherent control in the Si:P quantum computer architecture
C. J. Wellard, L. C. L. Hollenberg, S. Das Sarma
We present a theoretical analysis of a microwave spectroscopy experiment on a charge qubit defined by a P donor pair in silicon, for which we calculate Hamiltonian parameters…
Optically induced spin to charge transduction in donor spin read-out
M. J. Testolin, Andrew D. Greentree, C. J. Wellard +1
The proposed read-out configuration D+D- for the Kane Si:P architecture[Nature 393, 133 (1998)] depends on spin-dependent electron tunneling between donors, induced adiabatically b…
Coherent electronic transfer in quantum dot systems using adiabatic passage
Andrew D. Greentree, Jared H. Cole, A. R. Hamilton +1
We describe a scheme for using an all-electrical, rapid, adiabatic population transfer between two spatially separated dots in a triple-quantum dot system. The electron spends no t…
Electrical readout of a spin qubit without double occupancy
Andrew D. Greentree, A. R. Hamilton, Lloyd C. L. Hollenberg +1
We identify a novel mechanism to read out a single solid-state electron spin using an all-electrical spin-to-charge conversion in a closed system. Our scheme uses three donors and…