Experimental proof of Quantum Zeno-assisted Noise Sensing

Autor:	Do, Hoang-Van, Lovecchio, Cosimo, Mastroserio, Ivana, Fabbri, Nicole, Cataliotti, Francesco S., Gherardini, Stefano, Müller, Matthias M., Pozza, Nicola Dalla, Caruso, Filippo
Rok vydání:	2019
Předmět:	Quantum Physics Condensed Matter - Disordered Systems and Neural Networks Condensed Matter - Other Condensed Matter
Zdroj:	New J. Phys. 21, 113056 (2019)
Druh dokumentu:	Working Paper
DOI:	10.1088/1367-2630/ab5740
Popis:	In the ideal quantum Zeno effect, repeated quantum projective measurements can freeze the coherent dynamics of a quantum system. However, in the weak quantum Zeno regime, measurement back-actions can allow the sensing of semi-classical field fluctuations. In this regard, we theoretically show how to combine the controlled manipulation of a quantum two-level system, used as a probe, with a sequence of projective measurements to have direct access to the noise correlation function. We experimentally test the effectiveness of the proposed noise sensing method on a properly engineered Bose-Einstein condensate of $^{87}Rb$ atoms realized on an atom chip. We believe that our quantum Zeno-based approach can open a new path towards novel quantum sensing devices. Comment: 19 pages, 8 figures; v2: close to the published version
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1907.09618 Zobrazit plný text záznamu View this record from Arxiv