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arXiv · 0812.4072

Qubit residence time measurements with a Bose-Einstein condensate

D. Sokolovski
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Abstract

We show that an electrostatic qubit located near a Bose-Einstein condensate trapped in a symmetric double-well potential can be used to measure the duration the qubit has spent in one of its quantum states. The stronq, medium and weak measurement regimes are analysed and a new type of Zeno effect is discussed. The analogy between the residence and the traversal (tunnelling) times is highlighted.

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D. Sokolovski. 2008-12-22. Qubit residence time measurements with a Bose-Einstein condensate. https://doi.org/10.1103/physrevlett.102.230405

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