BosonQ

An open-source mechanical design specifying utilities for operating a sub-atomic pulse-electron accelerated quantum computer

Note: this project is still in early planning. I am collecting the required components such as the UHV Chamber and Turbo-Pumps including the HVPSU. After that, I will need to create various interfaces for controlling these components with one central unit.

Features

• ESP32 low-level controls for operating a high-voltage PSU
• ESP32 low-level controls for remotely controlling a turbo-pump
• Interfaces for controlling an UHV chamber (ultra-high vacuum)
• openQASM transpiler for coherent translation of QASM into low-level ESP32
• Low-level code for the qubit state detetion using novel mechanics such as ESR, QPC and SSE
• Low-level code for controlling the circular-impulse generator used to produce electron beams
• Formal Specification for openQASM and integrated formal verification for QASM code

Todo

• Design UHV Parts in openSCAD
• Design beaming device in openSCAD
• Write low-level interfaces including formal hardware-verifications of the code
• Writing documentations

Design Parameters:

UHV chamber:

• Size: > 1m x 1m x 1m (larger than the size required for a 64-qubit quantum computer)
• Material: Stainless steel or Aluminum
• Wall thickness: > 10 mm
• Number of ports: > 10
• Port type: CF flange (or other suitable vacuum flange type)
• Base plate: 20-30 mm thick aluminum
• Pumping speed: > 1000 L/s
• Ultimate pressure: < 1 x 10^-10 mbar
• Cooling: Required for stable operation

Turbopump:

• Pumping speed: > 1000 L/s
• Ultimate pressure: < 1 x 10^-10 mbar
• Inlet flange: CF flange
• Outlet flange: KF flange
• Voltage: 110-220 VAC
• Frequency: 50-60 Hz
• Power consumption: < 200 W

HVPSU:

• Voltage range: > 1 kV
• Current range: > 1 A
• Stability: < 0.1% over time

Electron-beam:

• Electron energy: > 10 keV
• Beam current: > 100 nA
• Spot size: < 100 um
• Beam stability: < 0.1% over time

Possible qCMOS Cameras:

• Hamamatsu ORCA Fusion with drivers here: https://github.com/OxfordIonTrapGroup/orca-camera
• Hamamatsu Orca Flash4.0: Is a CCD camera but has good use for the detection of low-energy particles

Possible microcontrollers:

• Arduino Due
• Raspberry Pi 4
• BeagleBone Black

Citation

@article {
  title = {{bosonQ - An open-source mechanical design for a coherent sub-atomic pulse-electron beaming quantum computer}},
  year = {2020-2023},
  author = {Timo Sarkar},
}

License

The code and all underlying work for bosonQ is released under the Creative Commons Zero v1.0 Universal License.