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Updated: Jul 6, 2025

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Programmable high-dimensional Hamiltonian in a photonic waveguide array.

Yang Yang¹, Robert J Chapman^1,2, Ben Haylock^3,4

¹Quantum Photonics Laboratory and Centre for Quantum Computation and Communication Technology, RMIT University, Melbourne, VIC, 3000, Australia.

Nature Communications

|January 3, 2024

Summary

This summary is machine-generated.

This study introduces a programmable waveguide array that allows individual electro-optic tuning of Hamiltonian terms. This single device can simulate numerous condensed matter models and quantum dynamics, overcoming limitations of static waveguide lattices.

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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

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Area of Science:

Photonics and Quantum Simulation
Condensed Matter Physics
Integrated Optics

Background:

Waveguide lattices are crucial for quantum walks and simulating condensed matter systems.
Existing waveguide devices are static, limiting their application versatility.
Simulating complex quantum dynamics often requires numerous specialized, static devices.

Purpose of the Study:

To develop a single, reconfigurable waveguide array for diverse Hamiltonian simulations.
To demonstrate electro-optic tuning of Hamiltonian terms for dynamic control.
To enable the study of multiple condensed matter quantum dynamics on one platform.

Main Methods:

Utilized an 11-waveguide array in lithium niobate with 22 individually controlled electrodes.
Employed electro-optic tuning to implement continuous-time Hamiltonian evolutions.
Performed experiments realizing the Su-Schriffer-Heeger model, Aubrey-Andre model, and Anderson localization.

Main Results:

Successfully demonstrated a programmable waveguide array capable of simulating various physical models.
Achieved dynamic control over Hamiltonian terms, equivalent to over 2500 static devices.
Showcased micron-scale electric fields for precise tuning, overcoming cross-talk limitations.

Conclusions:

The developed programmable waveguide array offers unprecedented versatility for quantum simulation.
Electro-optic control provides ultra-fast, precise reconfigurability with low power consumption.
This platform significantly advances the study of condensed matter quantum dynamics using a single device.