We have provided the first demonstration of a general orthogonalization procedure that, starting from an arbitrary continuous-variable quantum state and from limited information about the state itself, can generate an orthogonal state and arbitrary coherent superpositions of the two.
Jun 28 2015
Making of a zero-area single photon pulse
Jul 01 2014
Hybrid entanglement of light
We produced entanglement between differently-encoded photonic qubits. A single-photon-based qubit state on one side and a coherent-state-based one on the other.
The situation closely resembles the quantum-classical hybrid entanglement of the atom-cat system in the Schroedinger’s cat paradox.
Nature Photonics made a cover out of the story (and of our image).
Jan 01 2014
Physica Scripta Highlights of 2013
Jan 01 2014
Turning diamond into graphite
Dec 31 2013
Measuring time and frequency with light
Apr 01 2013
Quantum Process Nonclassicality
Aug 01 2012
Adaptively probing the shape of quantum light
We describe the first use of a genetic algorithm to adaptively probe the arbitrary spectral/temporal shape of ultrashort quantum light states. Besides fully reconstructing the complex spectral/temporal structure of a single photon, we also demonstrate how to use this capability as a clever new way of encoding quantum information.
May 01 2011
Random-sampling XUV Ramsey spectroscopy
Jan 01 2011
A hi-fi noiseless amplifier for quantum light states
We have demonstrated the operation of a non-deterministic noiseless amplifier based on the addition and subtraction of single photons. Our scheme greatly outperforms all other existing approaches to phase-insensitive noiseless amplification, both in terms of amplification gain and final state fidelity.