6533b7dcfe1ef96bd1272104
RESEARCH PRODUCT
Exploring a new regime for processing optical qubits: squeezing and unsqueezing single photons
Mamoru EndoPeter Van LoockJun-ichi YoshikawaNoriaki IwataYoshichika MiwaPetr MarekAkira FurusawaRadim Filipsubject
PhysicsQuantum PhysicsPhotonGaussianGeneral Physics and AstronomyFOS: Physical sciencesState (functional analysis)symbols.namesakeSuperposition principleQuantum gateQubitQuantum mechanicssymbolsCoherent statesQuantum informationQuantum Physics (quant-ph)description
We implement the squeezing operation as a genuine quantum gate, deterministically and reversibly acting `online' upon an input state no longer restricted to the set of Gaussian states. More specifically, by applying an efficient and robust squeezing operation for the first time to non-Gaussian states, we demonstrate a two-way conversion between a particle-like single-photon state and a wave-like superposition of coherent states. Our squeezing gate is reliable enough to preserve the negativities of the corresponding Wigner functions. This demonstration represents an important and necessary step towards hybridizing discrete and continuous quantum protocols.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-09-13 |