6 papers
Conditional preparation of non-Gaussian quantum optical states by mesoscopic measurement
Alexander O. C. Davis, Mattia Walschaers, Valentina Parigi +1
Non-Gaussian states of an optical field are important as a proposed resource in quantum information applications. While conditional preparation is a highly successful approach to p…
Temporal mode transformations by sequential time and frequency phase modulation for applications in quantum information science
James Ashby, Valerian Thiel, Markus Allgaier +3
Controlling the temporal mode shape of quantum light pulses has wide ranging application to quantum information science and technology. Techniques have been developed to control th…
Single-photon characterization by two-photon spectral interferometry
Valérian Thiel, Alex O. C. Davis, Ke Sun +3
Single-photon sources are a fundamental resource in quantum optics. The indistinguishability and purity of photons emitted from different sources are crucial (necessary, essential)…
Two-color Bell states heralded via entanglement swapping
Sofiane Merkouche, Valérian Thiel, Alex O. C. Davis +1
We report on an experiment demonstrating entanglement swapping of time-frequency entangled photons. We perform a frequency-resolved Bell-state measurement on the idler photons from…
Measuring the quantum state of a photon pair entangled in frequency and time
Alex O. C. Davis, Valerian Thiel, Brian J. Smith
We present a technique to completely characterise the spectral-temporal wave function of a broadband photon pair using spectral-shearing interferometry. Our method is fully self-re…
Experimental single-photon pulse characterization by electro-optic shearing interferometry
Alex O. C Davis, Valérian Thiel, Michał Karpiński +1
The ability to characterize the complete quantum state of light is essential for both fundamental and applied science. For single photons the quantum state is provided by the mode…