INTEGRATED MECHANICS FOR MODULAR QUANTUM RECONFIGURABLE CIRCUITS

Projektinformationen

IMMQUIRE

ID Finanzhilfevereinbarung: 896401

DOI

10.3030/896401

Projekt abgeschlossen

EK-Unterschriftsdatum 24 Februar 2020

Startdatum 12 April 2021

Enddatum 11 April 2024

Finanziert unter

• EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions

Gesamtkosten

€ 246 669,37

EU-Beitrag

€ 246 669,12

Koordiniert durch

TECHNISCHE UNIVERSITEIT DELFT
Netherlands

Periodic Reporting for period 2 - IMMQUIRE (INTEGRATED MECHANICS FOR MODULAR QUANTUM RECONFIGURABLE CIRCUITS)

Berichtszeitraum: 2023-04-12 bis 2024-04-11

Zusammenfassung vom Kontext und den Gesamtzielen des Projekts

The aim of IMMQUIRE is to overcome the scaling limitations of quantum technologies by developing a modular on-chip platform equipped with mechanical reconfiguration to optically interconnect and control spin qubits. This system has the potential to generate qubit entanglement on an unprecedented scale and accelerate the development of quantum computers, cryptography, and a quantum internet.
Specific objectives are a) developing a mechanically reconfigurable PIC platform designed to b) strain-tune transferred diamond spin defects into spectral alignment, and c) reconfigure PICs for spin interaction and quantum logic.

At the conclusion of the project, we have shown large-scale integrated photonics and electronics for spin-optic based quantum information processing. This includes the demonstration of scalable waveguide- and cavity-coupled silicon color centers/spin defects, the integration of superconducting single-photon detectors, and diamond color center quantum systems on chip with more than 1000 qubits. These bring forward to generating large entangled states on chip for quantum computation and communication.

Arbeit, die ab Beginn des Projekts bis zum Ende des durch den Bericht erfassten Berichtszeitraums geleistet wurde, und die wichtigsten bis dahin erzielten Ergebnisse

We have demonstrated integration approaches for spin-photon interfaces into photonic integrated circuits and microelectronic chips. This includes a system integrating record-high (1024) number of controllable spin-optic interfaces, and spin control of a diamond color center on a nanophotonic chip. We have also developed a method to integrate superconducting single-photon detectors onto arbitrary photonic platforms, including mechanically-reconfigurable platforms.
We also started investigating a new type of color center in silicon with telecommunication wavelength operation, and demonstrated waveguide and cavity integration. Using the new silicon color centers, we demonstrated optical tuning of their operation wavelength.

Fortschritte, die über den aktuellen Stand der Technik hinausgehen und voraussichtliche potenzielle Auswirkungen (einschließlich der bis dato erzielten sozioökonomischen Auswirkungen und weiter gefassten gesellschaftlichen Auswirkungen des Projekts)

We have developed large-scale integrated photonics and electronics for spin-optic based quantum information processing. In addition, we have demonstrated the first waveguide- and cavity-coupled silicon color centers and their spectral tunability, key for quantum information processing. To complete the system, we demonstrated the integration of superconducting single-photon detectors into arbitrary photonic substrates, enabling processing-free high-quality detectors for quantum applications. These demonstrations brings us a step forward to generating qubit entanglement on a large scale for quantum computation and communication.

A silicon color center coupled into a waveguide as a spin-photon interface