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PME Distinguished Quantum Colloquium Series - Jelena Vuckovic

When:
Tuesday, May 10, 2022 10:00 am - 11:00 am
Where:
Virtual via Zoom
Description:

<b>Scalable semiconductor quantum systems by Dr. Prof. Jelena Vuckovic</b><br />
<br />
Quantum entanglement provides a key resource for all quantum technologies, ranging from quantum computing and quantum error correction to secure quantum communication and quantum metrology. However, record sizes of maximally entangled qubit systems are still quite modest in all platforms, with at most 24 qubits entangled in a GHZ state. On the other hand, the largest quantum network consists of only 3 remotely entangled nodes.<br /><br />
Semiconductor platforms based on color centers (crystal defects with optical transitions that enable spin-to-photon interfaces) would in principle be suitable for implementing scalable quantum systems, based on excellent spin quantum memories with direct photonic interfaces, the possibility to perform high speed and high-fidelity quantum gates, combined with expertise in scaling semiconductor circuits. However, there are many challenges that need to be addressed to enable this, including color centers integration into optical structures while preserving their coherence, as well as the inhomogeneity and imperfections of the qubits resulting from the nonuniform solid state environment. We show how a combination of new computational techniques (photonics inverse design, optimized driving of quantum systems), nanofabrication approaches, and fast optical and electrical control offers a unique way to address these challenges and to implement scalable quantum systems in diamond and silicon carbide.

Contact:
<a href="mailto:misham@uchicago.edu">Misha Maxey, misham@uchicago.edu</a>
Notes:

<a href="https://uchicago.zoom.us/j/96041344189?pwd=bWhGOTkxeEpydkxIQzBaeGpFZDh5… here for Zoom link</a>