Physics – Quantum Physics
Scientific paper
2005-07-14
Physics
Quantum Physics
20 pages, 1 figure
Scientific paper
The behavior of simply pulsed qubits (quantum systems with two linearly independent states) may be characterized by the energy difference $\Delta E$ between the two states of the qubit and by an external stimulating potential $V(t)$ that causes transitions between them. Thus, the operation of such quantum mechanical systems may be categorized in various regions that explicitly depend on $\Delta E$ and $V(t)$. Limiting cases of degenerate, perturbative, and adiabatic regions are discussed. A comprehensive and illustrative map for simply pulsed qubits is presented that can be used as a visual tool for students. Furthermore, analytic solutions may be obtained when the interaction $V(t)$ is proportional to $\delta(t-t_k)$, namely when a fast interaction, called a kick, is used.
Chalastaras A.
Kaplan Leah
McGuire James H.
Shakov Kh. Kh.
Smith Marcie
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