Simple rules for two-photon state preparation with linear optics
- URL: http://arxiv.org/abs/2405.01395v1
- Date: Thu, 2 May 2024 15:38:58 GMT
- Title: Simple rules for two-photon state preparation with linear optics
- Authors: Grégoire de Gliniasty, Paul Bagourd, Sébastien Draux, Boris Bourdoncle,
- Abstract summary: Entangling photons is a crucial resource for quantum communication and computation.
We leverage a two-photon state matrix representation to derive necessary and sufficient conditions on two-photon entangling operations with linear optics.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Entangling photons is a critical challenge for photonic quantum information processing: entanglement is a crucial resource for quantum communication and computation but can only be performed in a probabilistic manner when using linear optics. In this work, we leverage a two-photon state matrix representation to derive necessary and sufficient conditions on two-photon entangling operations with linear optics. We give a characterization of the input photonic states that can be used to prepare arbitrary two-qudit states in d-rail encoding with post-selection. We determine how many auxiliary photons are required to prepare any two-photon state with heralding. In addition, we present a construction for generalized post-selected n-qubit control-rotation gates.
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