International Business Machines Corporation (20240281691). SCALABLE QUBIT BIASING DEVICE BASED ON MULTIPLEXED CHARGE STORAGE simplified abstract

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SCALABLE QUBIT BIASING DEVICE BASED ON MULTIPLEXED CHARGE STORAGE

Organization Name

International Business Machines Corporation

Inventor(s)

Bogdan Cezar Zota of Rueschlikon (CH)

Eunjung Cha of Adliswill (CH)

Thomas Morf of Gross (CH)

Mridula Prathapan of Adliswil (CH)

Peter Mueller of Zurich (CH)

Alberto Ferraris of Langnau am Albis (CH)

SCALABLE QUBIT BIASING DEVICE BASED ON MULTIPLEXED CHARGE STORAGE - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240281691 titled 'SCALABLE QUBIT BIASING DEVICE BASED ON MULTIPLEXED CHARGE STORAGE

Simplified Explanation: The patent application describes a semiconductor device circuit designed to bias the gates of a qubit device, along with a method for operating the device. The circuit includes a multiplexed array of capacitor cells, each containing a transistor-controlled capacitor connected between the drain of the transistor and ground. The gates of the transistors are individually voltage controllable, allowing for precise control over the biasing process.

  • Each capacitor cell in the array contains a transistor-controlled capacitor.
  • The transistors in the circuit are connected to a common control point for easy management.
  • A charging unit and a discharging unit are included for activating and deactivating the circuit as needed.

Key Features and Innovation:

  • Multiplexed array of capacitor cells
  • Transistor-controlled capacitors
  • Individual voltage control over transistor gates
  • Common control point for all transistors
  • Charging and discharging units for activation control

Potential Applications: The technology can be applied in quantum computing, specifically in biasing the gates of qubit devices for improved performance and control.

Problems Solved: The circuit addresses the need for precise biasing of qubit device gates, which is crucial for the proper functioning of quantum computing systems.

Benefits:

  • Enhanced control over qubit device gates
  • Improved performance of quantum computing systems
  • Increased efficiency in biasing processes

Commercial Applications: Potential commercial applications include quantum computing research and development, as well as the production of advanced qubit devices for various industries.

Questions about Semiconductor Device Circuit: 1. How does the transistor-controlled capacitor in each capacitor cell contribute to the overall functionality of the circuit? 2. What advantages does the individual voltage control over transistor gates provide in operating the qubit device?


Original Abstract Submitted

embodiments including a semiconductor device circuit for biasing gates of a qubit device as well as a method for operating the device are disclosed. the embodiments may include a multiplexed array of capacitor cells, where each capacitor cell includes a transistor-controlled capacitor, where each capacitor is connected between a drain of a respective transistor and ground, where each source of all transistors of all capacitor cells are connected to a common control point, and where each gate of the transistors of the capacitor cells are individually voltage controllable. the embodiment may include a charging unit connected to the common control point, and a discharging unit connected to the common control point, where the charging unit and the discharging unit are alternatively activatable.