# Questions tagged [rabi-model]

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### A problem with the analytic solution to Rabi oscillation of a two-level system

Rabi oscillation of a two-level system is colloquially discussed in textbooks about quantum mechanics (especially quantum optics), so I think I'm good with just stating the results. The Hamiltonian is ...
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### Phase accumulation in Rabi driving

When a single-qubit gate is operated by Rabi driving for a time $t$, the resulting operator is equivalent to $\hat{O} = R_z(\omega t) R_x(\Omega t)$ where $\omega$ is the frequency of the driving ...
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### Rabi Oscillations: $\pi$-Pulse vs a single photon

I am puzzled by the following: Assume an atom as a two-level-system. A $\pi$-Pulse acting on an atom in the ground state promotes this atom in the excited state. This is done by a continuous ...
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### Spin precession for Rabi oscillations : interpretation with magnetic field in rotating frame

The model considered Consider an atom modeled by a two level system of energy $\hbar \omega$. We assume this atom is interacting with an electric field through electric-dipole interaction. The full ...
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### When one can reduce the Hilbert space in Jaynes-Cummings Model?

I found that : $[N,H] = 0$ , With $N=|e><e|+a^+a$ is the number of excitations and $H$ is the Hamiltonian of Jaynes-Cummings. and i want to describe the dynamics of the system(atom of two ...
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### How many photons are absorbed during Rabi oscillations?

In my understanding, Rabi oscillations are derived using the classical approximation for the electromagnetic field. I don't get how this picture fits with a quantized EM field though. Say you excite a ...
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