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Journal Article

Adaptive Detection of Arbitrarily Shaped Ultrashort Quantum Light States


Cassemiro,  K. N.
Silberhorn Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;

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Polycarpou, C., Cassemiro, K. N., Venturi, G., Zavatta, A., & Bellini, M. (2012). Adaptive Detection of Arbitrarily Shaped Ultrashort Quantum Light States. PHYSICAL REVIEW LETTERS, 109(5): 053602. doi:10.1103/PhysRevLett.109.053602.

Cite as: http://hdl.handle.net/11858/00-001M-0000-002D-689F-0
A quantum state of light is the excitation of a particular spatiotemporal mode of the electromagnetic field. A precise control of the mode structure is therefore essential for processing, detecting, and using photonic states in novel quantum technologies. Here we demonstrate an adaptive scheme, combining techniques from the fields of ultrafast coherent control and quantum optics, for probing the arbitrary complex spectrotemporal profile of an ultrashort quantum light pulse. The ability to access the modal structure of a quantum light state could boost the capacity of current quantum information protocols.