Nonclassical 2-photon interference with separate intrinsically narrowband fibre sources (2009)
Halder, Matthaeus, Fulconis, Jeremie, Cemlyn, Ben, Clark, Alex, Xiong, Chunle, Wadsworth, William J., ...
In this paper, we demonstrate a source of photon pairs based on four-wave-mixing in photonic crystal fibres. Careful engineering of the phase matching conditions in the fibres enables us to create...
High coherence photon pair source for quantum communication (2007)
Halder, Matthaeus, Beveratos, Alexios, Thew, Rob T, Jorel, Corentin, Zbinden, Hugo, Gisin, Nicolas
This paper reports a novel single mode source of narrow-band entangled photon pairs at telecom wavelengths under continuous wave excitation, based on parametric down conversion. For only 7 mW of pump...
Entangling Independent Photons by Time Measurement (2007)
Halder, Matthaeus, Beveratos, Alexios, Gisin, Nicolas, Scarani, Valerio, Simon, Christoph, Zbinden, Hugo
A quantum system composed of two or more subsystems can be in an entangled state, i.e. a state in which the properties of the global system are well defined but the properties of each subsystem are...
Quantum superposition and entanglement of mesoscopic plasmons (2005)
Fasel, Sylvain, Halder, Matthaeus, Gisin, Nicolas, Zbinden, Hugo
Quantum superpositions and entanglement are at the heart of the quantum information science. There have been only a few investigations of these phenomena at the mesoscopic level, despite the fact...
A photonic quantum information interface (2005)
Tanzilli, Sebastien, Tittel, Wolfgang, Halder, Matthaeus, Alibart, Olivier, Baldi, Pascal, Gisin, Nicolas, ...
Quantum communication is the art of transferring quantum states, or quantum bits of information (qubits), from one place to another. On the fundamental side, this allows one to distribute...