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High efficiency Nondistortion Quantum Interrogation of atoms in quantum superpositions

Xingxiang Zhou·Zheng-Wei Zhou·Guang-Can Guo·Marc J. Feldman
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Abstract

We consider the nondistortion quantum interrogation (NQI) of an atom prepared in a quantum superposition. By manipulating the polarization of the probe photon and making connections to interaction free measurements of opaque objects, we show that nondistortion interrogation of an atom in a quantum superposition can be done with efficiency approaching unity. However, if any component of the atom's superposition is completely transparent to the probe wave function, a nondistortion interrogation of the atom is impossible.

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Xingxiang Zhou, Zheng-Wei Zhou, Guang-Can Guo, Marc J. Feldman. 2001-05-07. High efficiency Nondistortion Quantum Interrogation of atoms in quantum superpositions. https://arxiv.org/abs/quant-ph/0105023

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