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Molecular evidence that echiurans and pogonophorans are derived annelids.
- D. McHugh
- Biology, Medicine
- Proceedings of the National Academy of Sciences…
- 22 July 1997
The Annelida, which includes the polychaetes and the clitellates, has long held the taxonomic rank of phylum. The unsegmented, mud-dwelling echiuran spoon worms and the gutless, deep-sea pogonophoran… Expand
Trapped-ion qutrit spin molecule quantum computer
We present a qutrit quantum computer design using trapped ions in the presence of a magnetic field gradient. The magnetic field gradient induces a "spin-spin" type coupling, similar to the J-coupling… Expand
Tests for diagnosing diabetes mellitus. Extrapolation of findings is incorrect.
- D. McHugh
- 20 August 1994
Entanglement, purity, and energy: Two qubits versus two modes (13 pages)
We study the relationship between the entanglement, mixedness, and energy of two-qubit and two-mode Gaussian quantum states. We parametrize the set of allowed states of these two fundamentally… Expand
When non-Gaussian states are Gaussian : Generalization of nonseparability criterion for continuous variables
We present a class of non-Gaussian two-mode continuous-variable states for which the separability criterion for Gaussian states can be employed to detect whether they are separable or not. These… Expand