Title

Manipulating two-spin coherences and qubit pairs

Document Type

Article

Publication Date

1-1-2000

Abstract

A compact derivation is given for propagators of a wide class of time-dependent Hamiltonians that describe coupled spin (“qubit”) pairs. As many as eight of the 16 operators in the system, each with its own time-dependent coefficient, can be handled with no more difficulty than a single spin in a magnetic field. A single first-order (in time), quadratically nonlinear differential equation for a classical function is the only nontrivial ingredient in constructing the full quantum propagator for a wide variety of magnetic coherences and qubit interactions. © 2000 The American Physical Society.

Publication Source (Journal or Book title)

Physical Review A - Atomic, Molecular, and Optical Physics

First Page

5

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