Analytically solvable driven time-dependent two-level quantum systems

Abstract

Analytical solutions to the time-dependent Schrodinger equation describing a driven two-level system are invaluable to many areas of physics, but they are also extremely rare. Here, we present a simple algorithm that generates an unlimited number of exact analytical solutions. We show that a general single-axis driving term and its corresponding evolution operator are determined by a single real function which is constrained only by a certain inequality and initial conditions. Any function satisfying these constraints yields an exact analytical solution. We demonstrate this method by presenting several new exact solutions to the time-dependent Schrodinger equation. Our general method and many of the new solutions we present are particularly relevant to qubit control in quantum computing applications.

4.5 pages, 4 figures, PRL version

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Cited by in corpus (6)

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• An example of interplay between Physics and Mathematics: Exact resolution of a new class of Riccati Equations
• Maximum population transfer in a periodically driven two-level system
• Interaction-free evolution in the presence of time-dependent Hamiltonians
• Clock frequency estimation under spontaneous emission