61 citations · 158 across the 3 of their papers we have counts for
10 papers · 1 filter
Achieving the ultimate quantum timing resolution
Vahid Ansari, Benjamin Brecht, Jano Gil-López +5
Accurate time-delay measurement is at the core of many modern technologies. Here, we present a temporal-mode demultiplexing scheme that achieves the ultimate quantum precision for…
Remotely projecting states of photonic temporal modes
Vahid Ansari, John M. Donohue, Benjamin Brecht +1
Two-photon time-frequency entanglement is a valuable resource in quantum information. Resolving the wavepacket of ultrashort pulsed single-photons, however, is a challenge. Here, w…
Counter-propagating photon pair generation in a nonlinear waveguide
Kai-Hong Luo, Vahid Ansari, Marcello Massaro +5
Counter-propagating parametric conversion processes in non-linear bulk crystals have been shown to feature unique properties for efficient narrowband frequency conversion. In quant…
Distillation of Squeezing using a pulsed engineered PDC source
Thomas Dirmeier, Johannes Tiedau, Imran Khan +5
Hybrid quantum information processing combines the advantages of discrete and continues variable protocols by realizing protocols consisting of photon counting and homodyne measure…
Pulse shaping using dispersion-engineered difference frequency generation
Markus Allgaier, Vahid Ansari, John Matthew Donohue +5
The temporal-mode (TM) basis is a prime candidate to perform high-dimensional quantum encoding. Quantum frequency conversion has been employed as a tool to perform tomographic anal…
Fabrication limits of waveguides in nonlinear crystals and their impact on quantum optics applications
Matteo Santandrea, Michael Stefszky, Vahid Ansari +1
Waveguides in nonlinear materials are a key component for photon pair sources and offer promising solutions to interface quantum memories through frequency conversion. To bring the…