Collapse and Revival of `Schrödinger Cat' States

Details Collapse and Revival of `Schrödinger Cat' States Collapse and Revival of `Schrödinger Cat' States

2008-12-19

arxiv.org/abs/0812.3766v2

Physics

Quantum Physics

4 pages, 4 figures. This is a heavily revised version of arXiv:0809.2025

Scientific paper

We study the dynamics of the Jaynes-Cummings Model for an array of $N_q$ two level systems (or qubits) interacting with a quantized single mode electromagnetic cavity (or quantum bus). For an initial cavity coherent state $| \alpha >$ and the qubit system in a specified `basin of attraction' in its Hilbert space, we demonstrate the oscillation of a superposition of two macroscopic quantum states between the qubit system and the field mode. From the perspective of either the qubit or the field system, there is collapse and revival of a `Schr\"odinger Cat' state.

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