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| Name | Large-Scale Quantum Computers: The need for Cryo-CMOS |
| Video Uploader | Video From isQED |
| Upload Date | This Video Uploaded At 13-04-2021 22:44:14 |
| Video Discription | Quantum computers hold the promise to change our everyday lives in this century in the same radical way as the classical computer did in the last century, by efficiently solving problems that are intractable today, such as large number factorization and simulation of quantum systems. Quantum computers operate by processing information stored in quantum bits (qubits), which must typically operate at cryogenic temperature. Today the qubits are mostly controlled by conventional electronics working at room temperature. This thermal gap can be readily bridged by a few wires since today’s quantum computers employ only a few qubits. However, practical quantum computers will require more than thousands of qubits, making this approach impractical. A solution is to build the qubit electrical interface using CMOS integrated circuits operate at cryogenic temperature (cryo-CMOS), hence very close to the qubits. This talk will give a brief introduction to quantum computers and their operations, followed by a description of their hardware implementation and their requirements in terms of electronic control and read-out, including the need for modeling the quantum/classical interface. Next, we will review the behavior of commercial CMOS devices and the available cryogenic device models required for circuit design. The demonstration of several state-of-the-art cryo-CMOS circuits and systems, both for qubit drive and readout, and their verification with qubits will be described, highlighting challenges and opportunities. Finally, we will outline the prospects towards qubit/electronics integration to enable the large-scale quantum computers required to address future world-changing computational problems. Tutorial Speaker: Dr. Fabio Sebastiano, Delft University of Technology, Delft, The Netherlands |
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