Presentation + Paper
13 March 2024 Spin-orbit photonic circuits for quantum simulations
Author Affiliations +
Abstract
The observation of extreme dynamics within quantum simulators based on photonic circuits is typically precluded by optical losses, exponentially increasing with the system depth or, equivalently, with the number of optical components. This is a natural consequence of the standard approach to photonic simulations of quantum dynamics, where the complexity of the setup grows with the extension of the evolution in time. By focusing on simple protocols of discrete-time quantum walks, we show that it is possible to compress homogeneous evolutions within only three liquid-crystal metasurfaces, encompassing up to a few hundreds of time steps. By exploiting spin-orbit effects, these devices implement space-dependent polarization transformations that mix circularly polarized optical modes carrying quantized transverse momentum, mimicking the target quantum dynamics with high efficiency and accuracy. Being extremely versatile, our compact platform will pave the way to the simulations of extreme regimes of more exotic dynamics.
Conference Presentation
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Francesco Di Colandrea, Amin Babazadeh, Alexandre Dauphin, Pietro Massignan, Lorenzo Marrucci, and Filippo Cardano "Spin-orbit photonic circuits for quantum simulations", Proc. SPIE 12911, Quantum Computing, Communication, and Simulation IV, 129110Q (13 March 2024); https://doi.org/10.1117/12.2691444
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KEYWORDS
Quantum simulation

Quantum experiments

Simulations

Liquid crystals

Photonic integrated circuits

Quantum walks

Quantum probability

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