Details
| Original language | English |
|---|---|
| Number of pages | 6 |
| Publication status | E-pub ahead of print - 28 May 2021 |
Abstract
Keywords
- quant-ph, physics.optics
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2021.
Research output: Working paper/Preprint › Preprint
}
TY - UNPB
T1 - Flying-qubit gates distributive over photonic waveshapes
AU - Babushkin, Ihar
AU - Demircan, Ayhan
AU - Kues, Michael
AU - Morgner, Uwe
PY - 2021/5/28
Y1 - 2021/5/28
N2 - Photons, acting as "flying qubits" in propagation geometries such as waveguides, appear unavoidably in the form of wavepackets (pulses). The shape of the photonic wavepacket, as well as possible temporal/spectral correlations between the photons, play a critical role in successful scalable computation. Currently, unentangled indistinguishable photons are considered as a suitable resource for scalable photonic circuits. Here we show that using so called coherent photon conversion, it is possible to construct flying-qubit gates, which are not only insensitive to waveshapes of the photons and temporal/spectral correlations between them, but which also fully preserve these waveshapes and correlations upon the processing. This allows to use photons with correlations and purity in a very broad range for a scalable computation. Moreover, such gates can process entangled photonic wavepackets even more effectively than unentangled ones.
AB - Photons, acting as "flying qubits" in propagation geometries such as waveguides, appear unavoidably in the form of wavepackets (pulses). The shape of the photonic wavepacket, as well as possible temporal/spectral correlations between the photons, play a critical role in successful scalable computation. Currently, unentangled indistinguishable photons are considered as a suitable resource for scalable photonic circuits. Here we show that using so called coherent photon conversion, it is possible to construct flying-qubit gates, which are not only insensitive to waveshapes of the photons and temporal/spectral correlations between them, but which also fully preserve these waveshapes and correlations upon the processing. This allows to use photons with correlations and purity in a very broad range for a scalable computation. Moreover, such gates can process entangled photonic wavepackets even more effectively than unentangled ones.
KW - quant-ph
KW - physics.optics
M3 - Preprint
BT - Flying-qubit gates distributive over photonic waveshapes
ER -